diff --git a/config/dbstructure.json b/config/dbstructure.json
new file mode 100644
index 0000000000..62f710cdf7
--- /dev/null
+++ b/config/dbstructure.json
@@ -0,0 +1,1250 @@
+{
+	"addon": {
+		"comment": "registered addons",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"name": {"type": "varchar(50)", "not null": "1", "default": "", "comment": "addon base (file)name"},
+			"version": {"type": "varchar(50)", "not null": "1", "default": "", "comment": "currently unused"},
+			"installed": {"type": "boolean", "not null": "1", "default": "0", "comment": "currently always 1"},
+			"hidden": {"type": "boolean", "not null": "1", "default": "0", "comment": "currently unused"},
+			"timestamp": {"type": "int unsigned", "not null": "1", "default": "0", "comment": "file timestamp to check for reloads"},
+			"plugin_admin": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 = has admin config, 0 = has no admin config"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"name": ["UNIQUE", "name"]
+		}
+	},
+	"attach": {
+		"comment": "file attachments",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "generated index"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"hash": {"type": "varchar(64)", "not null": "1", "default": "", "comment": "hash"},
+			"filename": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "filename of original"},
+			"filetype": {"type": "varchar(64)", "not null": "1", "default": "", "comment": "mimetype"},
+			"filesize": {"type": "int unsigned", "not null": "1", "default": "0", "comment": "size in bytes"},
+			"data": {"type": "longblob", "not null": "1", "comment": "file data"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "creation time"},
+			"edited": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "last edit time"},
+			"allow_cid": {"type": "mediumtext", "comment": "Access Control - list of allowed contact.id '<19><78>"},
+			"allow_gid": {"type": "mediumtext", "comment": "Access Control - list of allowed groups"},
+			"deny_cid": {"type": "mediumtext", "comment": "Access Control - list of denied contact.id"},
+			"deny_gid": {"type": "mediumtext", "comment": "Access Control - list of denied groups"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"auth_codes": {
+		"comment": "OAuth usage",
+		"fields": {
+			"id": {"type": "varchar(40)", "not null": "1", "primary": "1", "comment": ""},
+			"client_id": {"type": "varchar(20)", "not null": "1", "default": "", "relation": {"clients": "client_id"}, "comment": ""},
+			"redirect_uri": {"type": "varchar(200)", "not null": "1", "default": "", "comment": ""},
+			"expires": {"type": "int", "not null": "1", "default": "0", "comment": ""},
+			"scope": {"type": "varchar(250)", "not null": "1", "default": "", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"cache": {
+		"comment": "Stores temporary data",
+		"fields": {
+			"k": {"type": "varbinary(255)", "not null": "1", "primary": "1", "comment": "cache key"},
+			"v": {"type": "mediumtext", "comment": "cached serialized value"},
+			"expires": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of cache expiration"},
+			"updated": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of cache insertion"}
+		},
+		"indexes": {
+			"PRIMARY": ["k"],
+			"k_expires": ["k", "expires"]
+		}
+	},
+	"challenge": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"challenge": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"dfrn-id": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"expire": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"type": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"last_update": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"clients": {
+		"comment": "OAuth usage",
+		"fields": {
+			"client_id": {"type": "varchar(20)", "not null": "1", "primary": "1", "comment": ""},
+			"pw": {"type": "varchar(20)", "not null": "1", "default": "", "comment": ""},
+			"redirect_uri": {"type": "varchar(200)", "not null": "1", "default": "", "comment": ""},
+			"name": {"type": "text", "comment": ""},
+			"icon": {"type": "text", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"}
+		},
+		"indexes": {
+			"PRIMARY": ["client_id"]
+		}
+	},
+	"config": {
+		"comment": "main configuration storage",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"cat": {"type": "varbinary(50)", "not null": "1", "default": "", "comment": ""},
+			"k": {"type": "varbinary(50)", "not null": "1", "default": "", "comment": ""},
+			"v": {"type": "mediumtext", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"cat_k": ["UNIQUE", "cat", "k"]
+		}
+	},
+	"contact": {
+		"comment": "contact table",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"self": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 if the contact is the user him/her self"},
+			"remote_self": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"rel": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "The kind of the relation between the user and the contact"},
+			"duplex": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": "Network protocol of the contact"},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Name that this contact is known by"},
+			"nick": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Nick- and user name of the contact"},
+			"location": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"about": {"type": "text", "comment": ""},
+			"keywords": {"type": "text", "comment": "public keywords (interests) of the contact"},
+			"gender": {"type": "varchar(32)", "not null": "1", "default": "", "comment": ""},
+			"xmpp": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"attag": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"avatar": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "default": "", "comment": "Link to the profile photo of the contact"},
+			"thumb": {"type": "varchar(255)", "default": "", "comment": "Link to the profile photo (thumb size)"},
+			"micro": {"type": "varchar(255)", "default": "", "comment": "Link to the profile photo (micro size)"},
+			"site-pubkey": {"type": "text", "comment": ""},
+			"issued-id": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"dfrn-id": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"nurl": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"addr": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"alias": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pubkey": {"type": "text", "comment": "RSA public key 4096 bit"},
+			"prvkey": {"type": "text", "comment": "RSA private key 4096 bit"},
+			"batch": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"request": {"type": "varchar(255)", "comment": ""},
+			"notify": {"type": "varchar(255)", "comment": ""},
+			"poll": {"type": "varchar(255)", "comment": ""},
+			"confirm": {"type": "varchar(255)", "comment": ""},
+			"poco": {"type": "varchar(255)", "comment": ""},
+			"aes_allow": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"ret-aes": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"usehub": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"subhub": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"hub-verify": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"last-update": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of the last try to update the contact info"},
+			"success_update": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of the last successful contact update"},
+			"failure_update": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of the last failed update"},
+			"name-date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"uri-date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"avatar-date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"term-date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last-item": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "date of the last post"},
+			"priority": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"blocked": {"type": "boolean", "not null": "1", "default": "1", "comment": ""},
+			"readonly": {"type": "boolean", "not null": "1", "default": "0", "comment": "posts of the contact are readonly"},
+			"writable": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"forum": {"type": "boolean", "not null": "1", "default": "0", "comment": "contact is a forum"},
+			"prv": {"type": "boolean", "not null": "1", "default": "0", "comment": "contact is a private group"},
+			"contact-type": {"type": "tinyint", "not null": "1", "default": "0", "comment": ""},
+			"hidden": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"archive": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"pending": {"type": "boolean", "not null": "1", "default": "1", "comment": ""},
+			"rating": {"type": "tinyint", "not null": "1", "default": "0", "comment": ""},
+			"reason": {"type": "text", "comment": ""},
+			"closeness": {"type": "tinyint unsigned", "not null": "1", "default": "99", "comment": ""},
+			"info": {"type": "mediumtext", "comment": ""},
+			"profile-id": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"bdyear": {"type": "varchar(4)", "not null": "1", "default": "", "comment": ""},
+			"bd": {"type": "date", "not null": "1", "default": "0001-01-01", "comment": ""},
+			"notify_new_posts": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"fetch_further_information": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"ffi_keyword_blacklist": {"type": "text", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_name": ["uid", "name(190)"],
+			"self_uid": ["self", "uid"],
+			"alias_uid": ["alias(32)", "uid"],
+			"pending_uid": ["pending", "uid"],
+			"blocked_uid": ["blocked", "uid"],
+			"uid_rel_network_poll": ["uid", "rel", "network", "poll(64)", "archive"],
+			"uid_network_batch": ["uid", "network", "batch(64)"],
+			"addr_uid": ["addr(32)", "uid"],
+			"nurl_uid": ["nurl(32)", "uid"],
+			"nick_uid": ["nick(32)", "uid"],
+			"dfrn-id": ["dfrn-id(64)"],
+			"issued-id": ["issued-id(64)"]
+		}
+	},
+	"conv": {
+		"comment": "private messages",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "A unique identifier for this conversation"},
+			"recips": {"type": "text", "comment": "sender_handle;recipient_handle"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"creator": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "handle of creator"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "creation timestamp"},
+			"updated": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "edited timestamp"},
+			"subject": {"type": "text", "comment": "subject of initial message"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid": ["uid"]
+		}
+	},
+	"conversation": {
+		"comment": "Raw data and structure information for messages",
+		"fields": {
+			"item-uri": {"type": "varbinary(255)", "not null": "1", "primary": "1", "comment": "URI of the item"},
+			"reply-to-uri": {"type": "varbinary(255)", "not null": "1", "default": "", "comment": "URI to which this item is a reply"},
+			"conversation-uri": {"type": "varbinary(255)", "not null": "1", "default": "", "comment": "GNU Social conversation URI"},
+			"conversation-href": {"type": "varbinary(255)", "not null": "1", "default": "", "comment": "GNU Social conversation link"},
+			"protocol": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "The protocol of the item"},
+			"source": {"type": "mediumtext", "comment": "Original source"},
+			"received": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Receiving date"}
+		},
+		"indexes": {
+			"PRIMARY": ["item-uri"],
+			"conversation-uri": ["conversation-uri"],
+			"received": ["received"]
+		}
+	},
+	"event": {
+		"comment": "Events",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"cid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "contact_id (ID of the contact in contact table)"},
+			"uri": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "creation time"},
+			"edited": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "last edit time"},
+			"start": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "event start time"},
+			"finish": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "event end time"},
+			"summary": {"type": "text", "comment": "short description or title of the event"},
+			"desc": {"type": "text", "comment": "event description"},
+			"location": {"type": "text", "comment": "event location"},
+			"type": {"type": "varchar(20)", "not null": "1", "default": "", "comment": "event or birthday"},
+			"nofinish": {"type": "boolean", "not null": "1", "default": "0", "comment": "if event does have no end this is 1"},
+			"adjust": {"type": "boolean", "not null": "1", "default": "1", "comment": "adjust to timezone of the recipient (0 or 1)"},
+			"ignore": {"type": "boolean", "not null": "1", "default": "0", "comment": "0 or 1"},
+			"allow_cid": {"type": "mediumtext", "comment": "Access Control - list of allowed contact.id '<19><78>'"},
+			"allow_gid": {"type": "mediumtext", "comment": "Access Control - list of allowed groups"},
+			"deny_cid": {"type": "mediumtext", "comment": "Access Control - list of denied contact.id"},
+			"deny_gid": {"type": "mediumtext", "comment": "Access Control - list of denied groups"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_start": ["uid", "start"]
+		}
+	},
+	"fcontact": {
+		"comment": "Diaspora compatible contacts - used in the Diaspora implementation",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "unique id"},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"request": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"nick": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"addr": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"batch": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"notify": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"poll": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"confirm": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"priority": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": ""},
+			"alias": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pubkey": {"type": "text", "comment": ""},
+			"updated": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"addr": ["addr(32)"],
+			"url": ["UNIQUE", "url(190)"]
+		}
+	},
+	"fsuggest": {
+		"comment": "friend suggestion stuff",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"cid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": ""},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"request": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"note": {"type": "text", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"gcign": {
+		"comment": "contacts ignored by friend suggestions",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Local User id"},
+			"gcid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"gcontact": "id"}, "comment": "gcontact.id of ignored contact"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid": ["uid"],
+			"gcid": ["gcid"]
+		}
+	},
+	"gcontact": {
+		"comment": "global contacts",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Name that this contact is known by"},
+			"nick": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Nick- and user name of the contact"},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Link to the contacts profile page"},
+			"nurl": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Link to the profile photo"},
+			"connect": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"updated": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last_contact": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last_failure": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""},
+			"location": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"about": {"type": "text", "comment": ""},
+			"keywords": {"type": "text", "comment": "puplic keywords (interests)"},
+			"gender": {"type": "varchar(32)", "not null": "1", "default": "", "comment": ""},
+			"birthday": {"type": "varchar(32)", "not null": "1", "default": "0001-01-01", "comment": ""},
+			"community": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 if contact is forum account"},
+			"contact-type": {"type": "tinyint", "not null": "1", "default": "-1", "comment": ""},
+			"hide": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 = should be hidden from search"},
+			"nsfw": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 = contact posts nsfw content"},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": "social network protocol"},
+			"addr": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"notify": {"type": "varchar(255)", "comment": ""},
+			"alias": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"generation": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"server_url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "baseurl of the contacts server"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"nurl": ["UNIQUE", "nurl(190)"],
+			"name": ["name(64)"],
+			"nick": ["nick(32)"],
+			"addr": ["addr(64)"],
+			"hide_network_updated": ["hide", "network", "updated"],
+			"updated": ["updated"]
+		}
+	},
+	"glink": {
+		"comment": "'friends of friends' linkages derived from poco",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"cid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"gcid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"gcontact": "id"}, "comment": ""},
+			"zcid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"gcontact": "id"}, "comment": ""},
+			"updated": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"cid_uid_gcid_zcid": ["UNIQUE", "cid", "uid", "gcid", "zcid"],
+			"gcid": ["gcid"]
+		}
+	},
+	"group": {
+		"comment": "privacy groups, group info",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"visible": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 indicates the member list is not private"},
+			"deleted": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 indicates the group has been deleted"},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "human readable name of group"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid": ["uid"]
+		}
+	},
+	"group_member": {
+		"comment": "privacy groups, member info",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"gid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"group": "id"}, "comment": "groups.id of the associated group"},
+			"contact-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "contact.id of the member assigned to the associated group"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"contactid": ["contact-id"],
+			"gid_contactid": ["UNIQUE", "gid", "contact-id"]
+		}
+	},
+	"gserver": {
+		"comment": "Global servers",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"nurl": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"version": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"site_name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"info": {"type": "text", "comment": ""},
+			"register_policy": {"type": "tinyint", "not null": "1", "default": "0", "comment": ""},
+			"registered-users": {"type": "int unsigned", "not null": "1", "default": "0", "comment": "Number of registered users"},
+			"poco": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"noscrape": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": ""},
+			"platform": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"relay-subscribe": {"type": "boolean", "not null": "1", "default": "0", "comment": "Has the server subscribed to the relay system"},
+			"relay-scope": {"type": "varchar(10)", "not null": "1", "default": "", "comment": "The scope of messages that the server wants to get"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last_poco_query": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last_contact": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""},
+			"last_failure": {"type": "datetime", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"nurl": ["UNIQUE", "nurl(190)"]
+		}
+	},
+	"gserver-tag": {
+		"comment": "Tags that the server has subscribed",
+		"fields": {
+			"gserver-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"gserver": "id"}, "primary": "1", "comment": "The id of the gserver"},
+			"tag": {"type": "varchar(100)", "not null": "1", "default": "", "primary": "1", "comment": "Tag that the server has subscribed"}
+		},
+		"indexes": {
+			"PRIMARY": ["gserver-id", "tag"],
+			"tag": ["tag"]
+		}
+	},
+	"hook": {
+		"comment": "addon hook registry",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"hook": {"type": "varbinary(100)", "not null": "1", "default": "", "comment": "name of hook"},
+			"file": {"type": "varbinary(200)", "not null": "1", "default": "", "comment": "relative filename of hook handler"},
+			"function": {"type": "varbinary(200)", "not null": "1", "default": "", "comment": "function name of hook handler"},
+			"priority": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": "not yet implemented - can be used to sort conflicts in hook handling by calling handlers in priority order"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"hook_file_function": ["UNIQUE", "hook", "file", "function"]
+		}
+	},
+	"intro": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"fid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"fcontact": "id"}, "comment": ""},
+			"contact-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": ""},
+			"knowyou": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"duplex": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"note": {"type": "text", "comment": ""},
+			"hash": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"datetime": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"blocked": {"type": "boolean", "not null": "1", "default": "1", "comment": ""},
+			"ignore": {"type": "boolean", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"item": {
+		"comment": "Structure for all posts",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "relation": {"thread": "iid"}},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "A unique identifier for this item"},
+			"uri": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"uri-hash": {"type": "varchar(80)", "not null": "1", "default": "", "comment": "RIPEMD-128 hash from uri"},
+			"parent": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": "item.id of the parent to this item if it is a reply of some form; otherwise this must be set to the id of this item"},
+			"parent-uri": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "uri of the parent to this item"},
+			"thr-parent": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "If the parent of this item is not the top-level item in the conversation, the uri of the immediate parent; otherwise set to parent-uri"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Creation timestamp."},
+			"edited": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of last edit (default is created)"},
+			"commented": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of last comment/reply to this item"},
+			"received": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime"},
+			"changed": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date that something in the conversation changed, indicating clients should fetch the conversation again"},
+			"gravity": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": "Network from where the item comes from"},
+			"owner-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "Link to the contact table with uid=0 of the owner of this item"},
+			"author-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "Link to the contact table with uid=0 of the author of this item"},
+			"icid": {"type": "int unsigned", "relation": {"item-content": "id"}, "comment": "Id of the item-content table entry that contains the whole item content"},
+			"iaid": {"type": "int unsigned", "relation": {"item-activity": "id"}, "comment": "Id of the item-activity table entry that contains the activity data"},
+			"extid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"post-type": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "Post type (personal note, bookmark, ...)"},
+			"global": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"private": {"type": "boolean", "not null": "1", "default": "0", "comment": "distribution is restricted"},
+			"visible": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"moderated": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"deleted": {"type": "boolean", "not null": "1", "default": "0", "comment": "item has been deleted"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner id which owns this copy of the item"},
+			"contact-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "contact.id"},
+			"wall": {"type": "boolean", "not null": "1", "default": "0", "comment": "This item was posted to the wall of uid"},
+			"origin": {"type": "boolean", "not null": "1", "default": "0", "comment": "item originated at this site"},
+			"pubmail": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"starred": {"type": "boolean", "not null": "1", "default": "0", "comment": "item has been favourited"},
+			"unseen": {"type": "boolean", "not null": "1", "default": "1", "comment": "item has not been seen"},
+			"mention": {"type": "boolean", "not null": "1", "default": "0", "comment": "The owner of this item was mentioned in it"},
+			"forum_mode": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"psid": {"type": "int unsigned", "relation": {"permissionset": "id"}, "comment": "ID of the permission set of this post"},
+			"resource-id": {"type": "varchar(32)", "not null": "1", "default": "", "comment": "Used to link other tables to items, it identifies the linked resource (e.g. photo) and if set must also set resource_type"},
+			"event-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"event": "id"}, "comment": "Used to link to the event.id"},
+			"attach": {"type": "mediumtext", "comment": "JSON structure representing attachments to this item"},
+			"allow_cid": {"type": "mediumtext", "comment": "Deprecated"},
+			"allow_gid": {"type": "mediumtext", "comment": "Deprecated"},
+			"deny_cid": {"type": "mediumtext", "comment": "Deprecated"},
+			"deny_gid": {"type": "mediumtext", "comment": "Deprecated"},
+			"postopts": {"type": "text", "comment": "Deprecated"},
+			"inform": {"type": "mediumtext", "comment": "Deprecated"},
+			"type": {"type": "varchar(20)", "comment": "Deprecated"},
+			"bookmark": {"type": "boolean", "comment": "Deprecated"},
+			"file": {"type": "mediumtext", "comment": "Deprecated"},
+			"location": {"type": "varchar(255)", "comment": "Deprecated"},
+			"coord": {"type": "varchar(255)", "comment": "Deprecated"},
+			"tag": {"type": "mediumtext", "comment": "Deprecated"},
+			"plink": {"type": "varchar(255)", "comment": "Deprecated"},
+			"title": {"type": "varchar(255)", "comment": "Deprecated"},
+			"content-warning": {"type": "varchar(255)", "comment": "Deprecated"},
+			"body": {"type": "mediumtext", "comment": "Deprecated"},
+			"app": {"type": "varchar(255)", "comment": "Deprecated"},
+			"verb": {"type": "varchar(100)", "comment": "Deprecated"},
+			"object-type": {"type": "varchar(100)", "comment": "Deprecated"},
+			"object": {"type": "text", "comment": "Deprecated"},
+			"target-type": {"type": "varchar(100)", "comment": "Deprecated"},
+			"target": {"type": "text", "comment": "Deprecated"},
+			"author-name": {"type": "varchar(255)", "comment": "Deprecated"},
+			"author-link": {"type": "varchar(255)", "comment": "Deprecated"},
+			"author-avatar": {"type": "varchar(255)", "comment": "Deprecated"},
+			"owner-name": {"type": "varchar(255)", "comment": "Deprecated"},
+			"owner-link": {"type": "varchar(255)", "comment": "Deprecated"},
+			"owner-avatar": {"type": "varchar(255)", "comment": "Deprecated"},
+			"rendered-hash": {"type": "varchar(32)", "comment": "Deprecated"},
+			"rendered-html": {"type": "mediumtext", "comment": "Deprecated"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"guid": ["guid(191)"],
+			"uri": ["uri(191)"],
+			"parent": ["parent"],
+			"parent-uri": ["parent-uri(191)"],
+			"extid": ["extid(191)"],
+			"uid_id": ["uid", "id"],
+			"uid_contactid_id": ["uid", "contact-id", "id"],
+			"uid_created": ["uid", "created"],
+			"uid_commented": ["uid", "commented"],
+			"uid_unseen_contactid": ["uid", "unseen", "contact-id"],
+			"uid_network_received": ["uid", "network", "received"],
+			"uid_network_commented": ["uid", "network", "commented"],
+			"uid_thrparent": ["uid", "thr-parent(190)"],
+			"uid_parenturi": ["uid", "parent-uri(190)"],
+			"uid_contactid_created": ["uid", "contact-id", "created"],
+			"authorid_created": ["author-id", "created"],
+			"ownerid": ["owner-id"],
+			"uid_uri": ["uid", "uri(190)"],
+			"resource-id": ["resource-id"],
+			"deleted_changed": ["deleted", "changed"],
+			"uid_wall_changed": ["uid", "wall", "changed"],
+			"uid_eventid": ["uid", "event-id"],
+			"icid": ["icid"],
+			"iaid": ["iaid"],
+			"psid_wall": ["psid", "wall"]
+		}
+	},
+	"item-activity": {
+		"comment": "Activities for items",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "relation": {"thread": "iid"}},
+			"uri": {"type": "varchar(255)", "comment": ""},
+			"uri-hash": {"type": "varchar(80)", "not null": "1", "default": "", "comment": "RIPEMD-128 hash from uri"},
+			"activity": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uri-hash": ["UNIQUE", "uri-hash"],
+			"uri": ["uri(191)"]
+		}
+	},
+	"item-content": {
+		"comment": "Content for all posts",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "relation": {"thread": "iid"}},
+			"uri": {"type": "varchar(255)", "comment": ""},
+			"uri-plink-hash": {"type": "varchar(80)", "not null": "1", "default": "", "comment": "RIPEMD-128 hash from uri"},
+			"title": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "item title"},
+			"content-warning": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"body": {"type": "mediumtext", "comment": "item body content"},
+			"location": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "text location where this item originated"},
+			"coord": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "longitude/latitude pair representing location where this item originated"},
+			"language": {"type": "text", "comment": "Language information about this post"},
+			"app": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "application which generated this item"},
+			"rendered-hash": {"type": "varchar(32)", "not null": "1", "default": "", "comment": ""},
+			"rendered-html": {"type": "mediumtext", "comment": "item.body converted to html"},
+			"object-type": {"type": "varchar(100)", "not null": "1", "default": "", "comment": "ActivityStreams object type"},
+			"object": {"type": "text", "comment": "JSON encoded object structure unless it is an implied object (normal post)"},
+			"target-type": {"type": "varchar(100)", "not null": "1", "default": "", "comment": "ActivityStreams target type if applicable (URI)"},
+			"target": {"type": "text", "comment": "JSON encoded target structure if used"},
+			"plink": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "permalink or URL to a displayable copy of the message at its source"},
+			"verb": {"type": "varchar(100)", "not null": "1", "default": "", "comment": "ActivityStreams verb"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uri-plink-hash": ["UNIQUE", "uri-plink-hash"],
+			"uri": ["uri(191)"]
+		}
+	},
+	"item-delivery-data": {
+		"comment": "Delivery data for items",
+		"fields": {
+			"iid": {"type": "int unsigned", "not null": "1", "primary": "1", "relation": {"item": "id"}, "comment": "Item id"},
+			"postopts": {"type": "text", "comment": "External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery"},
+			"inform": {"type": "mediumtext", "comment": "Additional receivers of the linked item"}
+		},
+		"indexes": {
+			"PRIMARY": ["iid"]
+		}
+	},
+	"locks": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"name": {"type": "varchar(128)", "not null": "1", "default": "", "comment": ""},
+			"locked": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"pid": {"type": "int unsigned", "not null": "1", "default": "0", "comment": "Process ID"},
+			"expires": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of cache expiration"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"name_expires": ["name", "expires"]
+		}
+	},
+	"mail": {
+		"comment": "private messages",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "A unique identifier for this private message"},
+			"from-name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "name of the sender"},
+			"from-photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "contact photo link of the sender"},
+			"from-url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "profile linke of the sender"},
+			"contact-id": {"type": "varchar(255)", "not null": "1", "default": "", "relation": {"contact": "id"}, "comment": "contact.id"},
+			"convid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"conv": "id"}, "comment": "conv.id"},
+			"title": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"body": {"type": "mediumtext", "comment": ""},
+			"seen": {"type": "boolean", "not null": "1", "default": "0", "comment": "if message visited it is 1"},
+			"reply": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"replied": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"unknown": {"type": "boolean", "not null": "1", "default": "0", "comment": "if sender not in the contact table this is 1"},
+			"uri": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"parent-uri": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "creation time of the private message"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_seen": ["uid", "seen"],
+			"convid": ["convid"],
+			"uri": ["uri(64)"],
+			"parent-uri": ["parent-uri(64)"],
+			"contactid": ["contact-id(32)"]
+		}
+	},
+	"mailacct": {
+		"comment": "Mail account data for fetching mails",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"server": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"port": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"ssltype": {"type": "varchar(16)", "not null": "1", "default": "", "comment": ""},
+			"mailbox": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"user": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pass": {"type": "text", "comment": ""},
+			"reply_to": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"action": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"movetofolder": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pubmail": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"last_check": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"manage": {
+		"comment": "table of accounts that can manage each other",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"mid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_mid": ["UNIQUE", "uid", "mid"]
+		}
+	},
+	"notify": {
+		"comment": "notifications",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"hash": {"type": "varchar(64)", "not null": "1", "default": "", "comment": ""},
+			"type": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"msg": {"type": "mediumtext", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"link": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"iid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": "item.id"},
+			"parent": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": ""},
+			"seen": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"verb": {"type": "varchar(100)", "not null": "1", "default": "", "comment": ""},
+			"otype": {"type": "varchar(10)", "not null": "1", "default": "", "comment": ""},
+			"name_cache": {"type": "tinytext", "comment": "Cached bbcode parsing of name"},
+			"msg_cache": {"type": "mediumtext", "comment": "Cached bbcode parsing of msg"}
+			},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"hash_uid": ["hash", "uid"],
+			"seen_uid_date": ["seen", "uid", "date"],
+			"uid_date": ["uid", "date"],
+			"uid_type_link": ["uid", "type", "link(190)"]
+		}
+	},
+	"notify-threads": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"notify-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"notify": "id"}, "comment": ""},
+			"master-parent-item": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": ""},
+			"parent-item": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"receiver-uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"oembed": {
+		"comment": "cache for OEmbed queries",
+		"fields": {
+			"url": {"type": "varbinary(255)", "not null": "1", "primary": "1", "comment": "page url"},
+			"maxwidth": {"type": "mediumint unsigned", "not null": "1", "primary": "1", "comment": "Maximum width passed to Oembed"},
+			"content": {"type": "mediumtext", "comment": "OEmbed data of the page"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of creation"}
+		},
+		"indexes": {
+			"PRIMARY": ["url", "maxwidth"],
+			"created": ["created"]
+		}
+	},
+	"openwebauth-token": {
+		"comment": "Store OpenWebAuth token to verify contacts",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"type": {"type": "varchar(32)", "not null": "1", "default": "", "comment": "Verify type"},
+			"token": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "A generated token"},
+			"meta": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of creation"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"parsed_url": {
+		"comment": "cache for 'parse_url' queries",
+		"fields": {
+			"url": {"type": "varbinary(255)", "not null": "1", "primary": "1", "comment": "page url"},
+			"guessing": {"type": "boolean", "not null": "1", "default": "0", "primary": "1", "comment": "is the 'guessing' mode active?"},
+			"oembed": {"type": "boolean", "not null": "1", "default": "0", "primary": "1", "comment": "is the data the result of oembed?"},
+			"content": {"type": "mediumtext", "comment": "page data"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "datetime of creation"}
+		},
+		"indexes": {
+			"PRIMARY": ["url", "guessing", "oembed"],
+			"created": ["created"]
+		}
+	},
+	"participation": {
+		"comment": "Storage for participation messages from Diaspora",
+		"fields": {
+			"iid": {"type": "int unsigned", "not null": "1", "primary": "1", "relation": {"item": "id"}, "comment": ""},
+			"server": {"type": "varchar(60)", "not null": "1", "primary": "1", "comment": ""},
+			"cid": {"type": "int unsigned", "not null": "1", "relation": {"contact": "id"}, "comment": ""},
+			"fid": {"type": "int unsigned", "not null": "1", "relation": {"fcontact": "id"}, "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["iid", "server"]
+			}
+		},
+	"pconfig": {
+		"comment": "personal (per user) configuration storage",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"cat": {"type": "varbinary(50)", "not null": "1", "default": "", "comment": ""},
+			"k": {"type": "varbinary(100)", "not null": "1", "default": "", "comment": ""},
+			"v": {"type": "mediumtext", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_cat_k": ["UNIQUE", "uid", "cat", "k"]
+		}
+	},
+	"permissionset": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner id of this permission set"},
+			"allow_cid": {"type": "mediumtext", "comment": "Access Control - list of allowed contact.id '<19><78>'"},
+			"allow_gid": {"type": "mediumtext", "comment": "Access Control - list of allowed groups"},
+			"deny_cid": {"type": "mediumtext", "comment": "Access Control - list of denied contact.id"},
+			"deny_gid": {"type": "mediumtext", "comment": "Access Control - list of denied groups"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_allow_cid_allow_gid_deny_cid_deny_gid": ["allow_cid(50)", "allow_gid(30)", "deny_cid(50)", "deny_gid(30)"]
+		}
+	},
+	"photo": {
+		"comment": "photo storage",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"contact-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "contact.id"},
+			"guid": {"type": "char(16)", "not null": "1", "default": "", "comment": "A unique identifier for this photo"},
+			"resource-id": {"type": "char(32)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "creation date"},
+			"edited": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "last edited date"},
+			"title": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"desc": {"type": "text", "comment": ""},
+			"album": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "The name of the album to which the photo belongs"},
+			"filename": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"type": {"type": "varchar(30)", "not null": "1", "default": "image/jpeg"},
+			"height": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"width": {"type": "smallint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"datasize": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"data": {"type": "mediumblob", "not null": "1", "comment": ""},
+			"scale": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"profile": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"allow_cid": {"type": "mediumtext", "comment": "Access Control - list of allowed contact.id '<19><78>'"},
+			"allow_gid": {"type": "mediumtext", "comment": "Access Control - list of allowed groups"},
+			"deny_cid": {"type": "mediumtext", "comment": "Access Control - list of denied contact.id"},
+			"deny_gid": {"type": "mediumtext", "comment": "Access Control - list of denied groups"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"contactid": ["contact-id"],
+			"uid_contactid": ["uid", "contact-id"],
+			"uid_profile": ["uid", "profile"],
+			"uid_album_scale_created": ["uid", "album(32)", "scale", "created"],
+			"uid_album_resource-id_created": ["uid", "album(32)", "resource-id", "created"],
+			"resource-id": ["resource-id"]
+		}
+	},
+	"poll": {
+		"comment": "Currently unused table for storing poll results",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"q0": {"type": "text", "comment": ""},
+			"q1": {"type": "text", "comment": ""},
+			"q2": {"type": "text", "comment": ""},
+			"q3": {"type": "text", "comment": ""},
+			"q4": {"type": "text", "comment": ""},
+			"q5": {"type": "text", "comment": ""},
+			"q6": {"type": "text", "comment": ""},
+			"q7": {"type": "text", "comment": ""},
+			"q8": {"type": "text", "comment": ""},
+			"q9": {"type": "text", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid": ["uid"]
+		}
+	},
+	"poll_result": {
+		"comment": "data for polls - currently unused",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"poll_id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"poll": "id"}},
+			"choice": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"poll_id": ["poll_id"]
+		}
+	},
+	"process": {
+		"comment": "Currently running system processes",
+		"fields": {
+			"pid": {"type": "int unsigned", "not null": "1", "primary": "1", "comment": ""},
+			"command": {"type": "varbinary(32)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["pid"],
+			"command": ["command"]
+		}
+	},
+	"profile": {
+		"comment": "user profiles data",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "Owner User id"},
+			"profile-name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Name of the profile"},
+			"is-default": {"type": "boolean", "not null": "1", "default": "0", "comment": "Mark this profile as default profile"},
+			"hide-friends": {"type": "boolean", "not null": "1", "default": "0", "comment": "Hide friend list from viewers of this profile"},
+			"name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pdesc": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Title or description"},
+			"dob": {"type": "varchar(32)", "not null": "1", "default": "0000-00-00", "comment": "Day of birth"},
+			"address": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"locality": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"region": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"postal-code": {"type": "varchar(32)", "not null": "1", "default": "", "comment": ""},
+			"country-name": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"hometown": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"gender": {"type": "varchar(32)", "not null": "1", "default": "", "comment": ""},
+			"marital": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"with": {"type": "text", "comment": ""},
+			"howlong": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"sexual": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"politic": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"religion": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"pub_keywords": {"type": "text", "comment": ""},
+			"prv_keywords": {"type": "text", "comment": ""},
+			"likes": {"type": "text", "comment": ""},
+			"dislikes": {"type": "text", "comment": ""},
+			"about": {"type": "text", "comment": ""},
+			"summary": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"music": {"type": "text", "comment": ""},
+			"book": {"type": "text", "comment": ""},
+			"tv": {"type": "text", "comment": ""},
+			"film": {"type": "text", "comment": ""},
+			"interest": {"type": "text", "comment": ""},
+			"romance": {"type": "text", "comment": ""},
+			"work": {"type": "text", "comment": ""},
+			"education": {"type": "text", "comment": ""},
+			"contact": {"type": "text", "comment": ""},
+			"homepage": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"xmpp": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"photo": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"thumb": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"publish": {"type": "boolean", "not null": "1", "default": "0", "comment": "publish default profile in local directory"},
+			"net-publish": {"type": "boolean", "not null": "1", "default": "0", "comment": "publish profile in global directory"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid_is-default": ["uid", "is-default"]
+		}
+	},
+	"profile_check": {
+		"comment": "DFRN remote auth use",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"cid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "contact.id"},
+			"dfrn_id": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"sec": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"expire": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"push_subscriber": {
+		"comment": "Used for OStatus: Contains feed subscribers",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"callback_url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"topic": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"nickname": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"push": {"type": "tinyint", "not null": "1", "default": "0", "comment": "Retrial counter"},
+			"last_update": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of last successful trial"},
+			"next_try": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Next retrial date"},
+			"renewed": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of last subscription renewal"},
+			"secret": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"next_try": ["next_try"]
+		}
+	},
+	"queue": {
+		"comment": "Queue for messages that couldn't be delivered",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"cid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "Message receiver"},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": "Receiver's network"},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Unique GUID of the message"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date, when the message was created"},
+			"last": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Date of last trial"},
+			"next": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Next retrial date"},
+			"retrial": {"type": "tinyint", "not null": "1", "default": "0", "comment": "Retrial counter"},
+			"content": {"type": "mediumtext", "comment": ""},
+			"batch": {"type": "boolean", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"last": ["last"],
+			"next": ["next"]
+		}
+	},
+	"register": {
+		"comment": "registrations requiring admin approval",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"hash": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"password": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"language": {"type": "varchar(16)", "not null": "1", "default": "", "comment": ""},
+			"note": {"type": "text", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"search": {
+		"comment": "",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"term": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"uid": ["uid"]
+		}
+	},
+	"session": {
+		"comment": "web session storage",
+		"fields": {
+			"id": {"type": "bigint unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"sid": {"type": "varbinary(255)", "not null": "1", "default": "", "comment": ""},
+			"data": {"type": "text", "comment": ""},
+			"expire": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"sid": ["sid(64)"],
+			"expire": ["expire"]
+		}
+	},
+	"sign": {
+		"comment": "Diaspora signatures",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"iid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": "item.id"},
+			"signed_text": {"type": "mediumtext", "comment": ""},
+			"signature": {"type": "text", "comment": ""},
+			"signer": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"iid": ["UNIQUE", "iid"]
+		}
+	},
+	"term": {
+		"comment": "item taxonomy (categories, tags, etc.) table",
+		"fields": {
+			"tid": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": ""},
+			"oid": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"item": "id"}, "comment": ""},
+			"otype": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"type": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"term": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"url": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"guid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"received": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"global": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"}
+		},
+		"indexes": {
+			"PRIMARY": ["tid"],
+			"oid_otype_type_term": ["oid", "otype", "type", "term(32)"],
+			"uid_otype_type_term_global_created": ["uid", "otype", "type", "term(32)", "global", "created"],
+			"uid_otype_type_url": ["uid", "otype", "type", "url(64)"],
+			"guid": ["guid(64)"]
+		}
+	},
+	"thread": {
+		"comment": "Thread related data",
+		"fields": {
+			"iid": {"type": "int unsigned", "not null": "1", "default": "0", "primary": "1", "relation": {"item": "id"}, "comment": "sequential ID"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"},
+			"contact-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": ""},
+			"owner-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "Item owner"},
+			"author-id": {"type": "int unsigned", "not null": "1", "default": "0", "relation": {"contact": "id"}, "comment": "Item author"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"edited": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"commented": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"received": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"changed": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": ""},
+			"wall": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"private": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"pubmail": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"moderated": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"visible": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"starred": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"ignored": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"post-type": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "Post type (personal note, bookmark, ...)"},
+			"unseen": {"type": "boolean", "not null": "1", "default": "1", "comment": ""},
+			"deleted": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"origin": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"forum_mode": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"mention": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"network": {"type": "char(4)", "not null": "1", "default": "", "comment": ""},
+			"bookmark": {"type": "boolean", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["iid"],
+			"uid_network_commented": ["uid", "network", "commented"],
+			"uid_network_created": ["uid", "network", "created"],
+			"uid_contactid_commented": ["uid", "contact-id", "commented"],
+			"uid_contactid_created": ["uid", "contact-id", "created"],
+			"contactid": ["contact-id"],
+			"ownerid": ["owner-id"],
+			"authorid": ["author-id"],
+			"uid_created": ["uid", "created"],
+			"uid_commented": ["uid", "commented"],
+			"uid_wall_created": ["uid", "wall", "created"],
+			"private_wall_origin_commented": ["private", "wall", "origin", "commented"]
+		}
+	},
+	"tokens": {
+		"comment": "OAuth usage",
+		"fields": {
+			"id": {"type": "varchar(40)", "not null": "1", "primary": "1", "comment": ""},
+			"secret": {"type": "text", "comment": ""},
+			"client_id": {"type": "varchar(20)", "not null": "1", "default": "", "relation": {"clients": "client_id"}},
+			"expires": {"type": "int", "not null": "1", "default": "0", "comment": ""},
+			"scope": {"type": "varchar(200)", "not null": "1", "default": "", "comment": ""},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "User id"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"]
+		}
+	},
+	"user": {
+		"comment": "The local users",
+		"fields": {
+			"uid": {"type": "mediumint unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"parent-uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "relation": {"user": "uid"}, "comment": "The parent user that has full control about this user"},
+			"guid": {"type": "varchar(64)", "not null": "1", "default": "", "comment": "A unique identifier for this user"},
+			"username": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Name that this user is known by"},
+			"password": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "encrypted password"},
+			"legacy_password": {"type": "boolean", "not null": "1", "default": "0", "comment": "Is the password hash double-hashed?"},
+			"nickname": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "nick- and user name"},
+			"email": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "the users email address"},
+			"openid": {"type": "varchar(255)", "not null": "1", "default": "", "comment": ""},
+			"timezone": {"type": "varchar(128)", "not null": "1", "default": "", "comment": "PHP-legal timezone"},
+			"language": {"type": "varchar(32)", "not null": "1", "default": "en", "comment": "default language"},
+			"register_date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "timestamp of registration"},
+			"login_date": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "timestamp of last login"},
+			"default-location": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "Default for item.location"},
+			"allow_location": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 allows to display the location"},
+			"theme": {"type": "varchar(255)", "not null": "1", "default": "", "comment": "user theme preference"},
+			"pubkey": {"type": "text", "comment": "RSA public key 4096 bit"},
+			"prvkey": {"type": "text", "comment": "RSA private key 4096 bit"},
+			"spubkey": {"type": "text", "comment": ""},
+			"sprvkey": {"type": "text", "comment": ""},
+			"verified": {"type": "boolean", "not null": "1", "default": "0", "comment": "user is verified through email"},
+			"blocked": {"type": "boolean", "not null": "1", "default": "0", "comment": "1 for user is blocked"},
+			"blockwall": {"type": "boolean", "not null": "1", "default": "0", "comment": "Prohibit contacts to post to the profile page of the user"},
+			"hidewall": {"type": "boolean", "not null": "1", "default": "0", "comment": "Hide profile details from unkown viewers"},
+			"blocktags": {"type": "boolean", "not null": "1", "default": "0", "comment": "Prohibit contacts to tag the post of this user"},
+			"unkmail": {"type": "boolean", "not null": "1", "default": "0", "comment": "Permit unknown people to send private mails to this user"},
+			"cntunkmail": {"type": "int unsigned", "not null": "1", "default": "10", "comment": ""},
+			"notify-flags": {"type": "smallint unsigned", "not null": "1", "default": "65535", "comment": "email notification options"},
+			"page-flags": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "page/profile type"},
+			"account-type": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": ""},
+			"prvnets": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"pwdreset": {"type": "varchar(255)", "comment": "Password reset request token"},
+			"pwdreset_time": {"type": "datetime", "comment": "Timestamp of the last password reset request"},
+			"maxreq": {"type": "int unsigned", "not null": "1", "default": "10", "comment": ""},
+			"expire": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"account_removed": {"type": "boolean", "not null": "1", "default": "0", "comment": "if 1 the account is removed"},
+			"account_expired": {"type": "boolean", "not null": "1", "default": "0", "comment": ""},
+			"account_expires_on": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "timestamp when account expires and will be deleted"},
+			"expire_notification_sent": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "timestamp of last warning of account expiration"},
+			"def_gid": {"type": "int unsigned", "not null": "1", "default": "0", "comment": ""},
+			"allow_cid": {"type": "mediumtext", "comment": "default permission for this user"},
+			"allow_gid": {"type": "mediumtext", "comment": "default permission for this user"},
+			"deny_cid": {"type": "mediumtext", "comment": "default permission for this user"},
+			"deny_gid": {"type": "mediumtext", "comment": "default permission for this user"},
+			"openidserver": {"type": "text", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["uid"],
+			"nickname": ["nickname(32)"]
+		}
+	},
+	"userd": {
+		"comment": "Deleted usernames",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "sequential ID"},
+			"username": {"type": "varchar(255)", "not null": "1", "comment": ""}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"username": ["username(32)"]
+		}
+	},
+	"user-item": {
+		"comment": "User specific item data",
+		"fields": {
+			"iid": {"type": "int unsigned", "not null": "1", "default": "0", "primary": "1", "relation": {"item": "id"}, "comment": "Item id"},
+			"uid": {"type": "mediumint unsigned", "not null": "1", "default": "0", "primary": "1", "relation": {"user": "uid"}, "comment": "User id"},
+			"hidden": {"type": "boolean", "not null": "1", "default": "0", "comment": "Marker to hide an item from the user"}
+		},
+		"indexes": {
+			"PRIMARY": ["uid", "iid"]
+		}
+	},
+	"worker-ipc": {
+		"comment": "Inter process communication between the frontend and the worker",
+		"fields": {
+			"key": {"type": "int", "not null": "1", "primary": "1", "comment": ""},
+			"jobs": {"type": "boolean", "comment": "Flag for outstanding jobs"}
+		},
+		"indexes": {
+			"PRIMARY": ["key"]
+		},
+		"engine": "MEMORY"
+	},
+	"workerqueue": {
+		"comment": "Background tasks queue entries",
+		"fields": {
+			"id": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "Auto incremented worker task id"},
+			"parameter": {"type": "mediumblob", "comment": "Task command"},
+			"priority": {"type": "tinyint unsigned", "not null": "1", "default": "0", "comment": "Task priority"},
+			"created": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Creation date"},
+			"pid": {"type": "int unsigned", "not null": "1", "default": "0", "comment": "Process id of the worker"},
+			"executed": {"type": "datetime", "not null": "1", "default": "0001-01-01 00:00:00", "comment": "Execution date"},
+			"done": {"type": "boolean", "not null": "1", "default": "0", "comment": "Marked 1 when the task was done - will be deleted later"}
+		},
+		"indexes": {
+			"PRIMARY": ["id"],
+			"pid": ["pid"],
+			"parameter": ["parameter(64)"],
+			"priority_created": ["priority", "created"],
+			"done_executed": ["done", "executed"]
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/Database/DBStructure.php b/src/Database/DBStructure.php
index 5ff15227b4..d6cd66aafa 100644
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@@ -820,1262 +820,41 @@ class DBStructure
 		return $retval;
 	}
 
+	/**
+	 * Loads the database structure definition from the /config/dbstructure.json file
+	 *
+	 * Expected format:
+	 * "table_name": {
+	 *   "comment": "meaningful table comment",
+	 *   "fields": {
+	 *     "field_name1": {"type": "int unsigned", "not null": "1", "extra": "auto_increment", "primary": "1", "comment": "meaningful field comment"},
+	 *     "field_name2": {"type": "varchar(50)", "not null": "1", "default": "", "comment": "meaningful field comment"},
+	 *   },
+	 *   "indexes": {
+	 *     "PRIMARY": ["field_name1"],
+	 *     "name": ["UNIQUE", "field_name2"]
+	 *   }
+	 * }
+	 *
+	 * @return array
+	 * @throws Exception
+	 */
 	public static function definition() {
-		$database = [];
+		$a = \Friendica\BaseObject::getApp();
 
-		$database["addon"] = [
-				"comment" => "registered addons",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"name" => ["type" => "varchar(50)", "not null" => "1", "default" => "", "comment" => "addon base (file)name"],
-						"version" => ["type" => "varchar(50)", "not null" => "1", "default" => "", "comment" => "currently unused"],
-						"installed" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "currently always 1"],
-						"hidden" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "currently unused"],
-						"timestamp" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "file timestamp to check for reloads"],
-						"plugin_admin" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 = has admin config, 0 = has no admin config"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"name" => ["UNIQUE", "name"],
-						]
-				];
-		$database["attach"] = [
-				"comment" => "file attachments",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "generated index"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"hash" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "hash"],
-						"filename" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "filename of original"],
-						"filetype" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "mimetype"],
-						"filesize" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "size in bytes"],
-						"data" => ["type" => "longblob", "not null" => "1", "comment" => "file data"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "creation time"],
-						"edited" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "last edit time"],
-						"allow_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed contact.id '<19><78>"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed groups"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied contact.id"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied groups"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["auth_codes"] = [
-				"comment" => "OAuth usage",
-				"fields" => [
-						"id" => ["type" => "varchar(40)", "not null" => "1", "primary" => "1", "comment" => ""],
-						"client_id" => ["type" => "varchar(20)", "not null" => "1", "default" => "", "relation" => ["clients" => "client_id"], "comment" => ""],
-						"redirect_uri" => ["type" => "varchar(200)", "not null" => "1", "default" => "", "comment" => ""],
-						"expires" => ["type" => "int", "not null" => "1", "default" => "0", "comment" => ""],
-						"scope" => ["type" => "varchar(250)", "not null" => "1", "default" => "", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["cache"] = [
-				"comment" => "Stores temporary data",
-				"fields" => [
-						"k" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "cache key"],
-						"v" => ["type" => "mediumtext", "comment" => "cached serialized value"],
-						"expires" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of cache expiration"],
-						"updated" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of cache insertion"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["k"],
-						"k_expires" => ["k", "expires"],
-						]
-				];
-		$database["challenge"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"challenge" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"dfrn-id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"expire" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"type" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"last_update" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["clients"] = [
-				"comment" => "OAuth usage",
-				"fields" => [
-						"client_id" => ["type" => "varchar(20)", "not null" => "1", "primary" => "1", "comment" => ""],
-						"pw" => ["type" => "varchar(20)", "not null" => "1", "default" => "", "comment" => ""],
-						"redirect_uri" => ["type" => "varchar(200)", "not null" => "1", "default" => "", "comment" => ""],
-						"name" => ["type" => "text", "comment" => ""],
-						"icon" => ["type" => "text", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["client_id"],
-						]
-				];
-		$database["config"] = [
-				"comment" => "main configuration storage",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"cat" => ["type" => "varbinary(50)", "not null" => "1", "default" => "", "comment" => ""],
-						"k" => ["type" => "varbinary(50)", "not null" => "1", "default" => "", "comment" => ""],
-						"v" => ["type" => "mediumtext", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"cat_k" => ["UNIQUE", "cat", "k"],
-						]
-				];
-		$database["contact"] = [
-				"comment" => "contact table",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"self" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 if the contact is the user him/her self"],
-						"remote_self" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"rel" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "The kind of the relation between the user and the contact"],
-						"duplex" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => "Network protocol of the contact"],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Name that this contact is known by"],
-						"nick" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Nick- and user name of the contact"],
-						"location" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"about" => ["type" => "text", "comment" => ""],
-						"keywords" => ["type" => "text", "comment" => "public keywords (interests) of the contact"],
-						"gender" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"xmpp" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"attag" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"avatar" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "default" => "", "comment" => "Link to the profile photo of the contact"],
-						"thumb" => ["type" => "varchar(255)", "default" => "", "comment" => "Link to the profile photo (thumb size)"],
-						"micro" => ["type" => "varchar(255)", "default" => "", "comment" => "Link to the profile photo (micro size)"],
-						"site-pubkey" => ["type" => "text", "comment" => ""],
-						"issued-id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"dfrn-id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"nurl" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"addr" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"alias" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pubkey" => ["type" => "text", "comment" => "RSA public key 4096 bit"],
-						"prvkey" => ["type" => "text", "comment" => "RSA private key 4096 bit"],
-						"batch" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"request" => ["type" => "varchar(255)", "comment" => ""],
-						"notify" => ["type" => "varchar(255)", "comment" => ""],
-						"poll" => ["type" => "varchar(255)", "comment" => ""],
-						"confirm" => ["type" => "varchar(255)", "comment" => ""],
-						"poco" => ["type" => "varchar(255)", "comment" => ""],
-						"aes_allow" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"ret-aes" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"usehub" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"subhub" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"hub-verify" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"last-update" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of the last try to update the contact info"],
-						"success_update" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of the last successful contact update"],
-						"failure_update" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of the last failed update"],
-						"name-date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"uri-date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"avatar-date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"term-date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"last-item" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "date of the last post"],
-						"priority" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"blocked" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => ""],
-						"readonly" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "posts of the contact are readonly"],
-						"writable" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"forum" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "contact is a forum"],
-						"prv" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "contact is a private group"],
-						"contact-type" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => ""],
-						"hidden" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"archive" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"pending" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => ""],
-						"rating" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => ""],
-						"reason" => ["type" => "text", "comment" => ""],
-						"closeness" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "99", "comment" => ""],
-						"info" => ["type" => "mediumtext", "comment" => ""],
-						"profile-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"bdyear" => ["type" => "varchar(4)", "not null" => "1", "default" => "", "comment" => ""],
-						"bd" => ["type" => "date", "not null" => "1", "default" => "0001-01-01", "comment" => ""],
-						"notify_new_posts" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"fetch_further_information" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"ffi_keyword_blacklist" => ["type" => "text", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_name" => ["uid", "name(190)"],
-						"self_uid" => ["self", "uid"],
-						"alias_uid" => ["alias(32)", "uid"],
-						"pending_uid" => ["pending", "uid"],
-						"blocked_uid" => ["blocked", "uid"],
-						"uid_rel_network_poll" => ["uid", "rel", "network", "poll(64)", "archive"],
-						"uid_network_batch" => ["uid", "network", "batch(64)"],
-						"addr_uid" => ["addr(32)", "uid"],
-						"nurl_uid" => ["nurl(32)", "uid"],
-						"nick_uid" => ["nick(32)", "uid"],
-						"dfrn-id" => ["dfrn-id(64)"],
-						"issued-id" => ["issued-id(64)"],
-						]
-				];
-		$database["conv"] = [
-				"comment" => "private messages",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this conversation"],
-						"recips" => ["type" => "text", "comment" => "sender_handle;recipient_handle"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"creator" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "handle of creator"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "creation timestamp"],
-						"updated" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "edited timestamp"],
-						"subject" => ["type" => "text", "comment" => "subject of initial message"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid" => ["uid"],
-						]
-				];
-		$database["conversation"] = [
-				"comment" => "Raw data and structure information for messages",
-				"fields" => [
-						"item-uri" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "URI of the item"],
-						"reply-to-uri" => ["type" => "varbinary(255)", "not null" => "1", "default" => "", "comment" => "URI to which this item is a reply"],
-						"conversation-uri" => ["type" => "varbinary(255)", "not null" => "1", "default" => "", "comment" => "GNU Social conversation URI"],
-						"conversation-href" => ["type" => "varbinary(255)", "not null" => "1", "default" => "", "comment" => "GNU Social conversation link"],
-						"protocol" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "The protocol of the item"],
-						"source" => ["type" => "mediumtext", "comment" => "Original source"],
-						"received" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Receiving date"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["item-uri"],
-						"conversation-uri" => ["conversation-uri"],
-						"received" => ["received"],
-						]
-				];
-		$database["event"] = [
-				"comment" => "Events",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "contact_id (ID of the contact in contact table)"],
-						"uri" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "creation time"],
-						"edited" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "last edit time"],
-						"start" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "event start time"],
-						"finish" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "event end time"],
-						"summary" => ["type" => "text", "comment" => "short description or title of the event"],
-						"desc" => ["type" => "text", "comment" => "event description"],
-						"location" => ["type" => "text", "comment" => "event location"],
-						"type" => ["type" => "varchar(20)", "not null" => "1", "default" => "", "comment" => "event or birthday"],
-						"nofinish" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "if event does have no end this is 1"],
-						"adjust" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => "adjust to timezone of the recipient (0 or 1)"],
-						"ignore" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "0 or 1"],
-						"allow_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed contact.id '<19><78>'"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed groups"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied contact.id"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied groups"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_start" => ["uid", "start"],
-						]
-				];
-		$database["fcontact"] = [
-				"comment" => "Diaspora compatible contacts - used in the Diaspora implementation",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "unique id"],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"request" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"nick" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"addr" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"batch" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"notify" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"poll" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"confirm" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"priority" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => ""],
-						"alias" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pubkey" => ["type" => "text", "comment" => ""],
-						"updated" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"addr" => ["addr(32)"],
-						"url" => ["UNIQUE", "url(190)"],
-						]
-				];
-		$database["fsuggest"] = [
-				"comment" => "friend suggestion stuff",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => ""],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"request" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"note" => ["type" => "text", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["gcign"] = [
-				"comment" => "contacts ignored by friend suggestions",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Local User id"],
-						"gcid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["gcontact" => "id"], "comment" => "gcontact.id of ignored contact"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid" => ["uid"],
-						"gcid" => ["gcid"],
-						]
-				];
-		$database["gcontact"] = [
-				"comment" => "global contacts",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Name that this contact is known by"],
-						"nick" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Nick- and user name of the contact"],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Link to the contacts profile page"],
-						"nurl" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Link to the profile photo"],
-						"connect" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"updated" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						"last_contact" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						"last_failure" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						"location" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"about" => ["type" => "text", "comment" => ""],
-						"keywords" => ["type" => "text", "comment" => "puplic keywords (interests)"],
-						"gender" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"birthday" => ["type" => "varchar(32)", "not null" => "1", "default" => "0001-01-01", "comment" => ""],
-						"community" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 if contact is forum account"],
-						"contact-type" => ["type" => "tinyint", "not null" => "1", "default" => "-1", "comment" => ""],
-						"hide" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 = should be hidden from search"],
-						"nsfw" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 = contact posts nsfw content"],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => "social network protocol"],
-						"addr" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"notify" => ["type" => "varchar(255)", "comment" => ""],
-						"alias" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"generation" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"server_url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "baseurl of the contacts server"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"nurl" => ["UNIQUE", "nurl(190)"],
-						"name" => ["name(64)"],
-						"nick" => ["nick(32)"],
-						"addr" => ["addr(64)"],
-						"hide_network_updated" => ["hide", "network", "updated"],
-						"updated" => ["updated"],
-						]
-				];
-		$database["glink"] = [
-				"comment" => "'friends of friends' linkages derived from poco",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"gcid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["gcontact" => "id"], "comment" => ""],
-						"zcid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["gcontact" => "id"], "comment" => ""],
-						"updated" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"cid_uid_gcid_zcid" => ["UNIQUE", "cid","uid","gcid","zcid"],
-						"gcid" => ["gcid"],
-						]
-				];
-		$database["group"] = [
-				"comment" => "privacy groups, group info",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"visible" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 indicates the member list is not private"],
-						"deleted" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 indicates the group has been deleted"],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "human readable name of group"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid" => ["uid"],
-						]
-				];
-		$database["group_member"] = [
-				"comment" => "privacy groups, member info",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"gid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["group" => "id"], "comment" => "groups.id of the associated group"],
-						"contact-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "contact.id of the member assigned to the associated group"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"contactid" => ["contact-id"],
-						"gid_contactid" => ["UNIQUE", "gid", "contact-id"],
-						]
-				];
-		$database["gserver"] = [
-				"comment" => "Global servers",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"nurl" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"version" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"site_name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"info" => ["type" => "text", "comment" => ""],
-						"register_policy" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => ""],
-						"registered-users" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "Number of registered users"],
-						"poco" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"noscrape" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => ""],
-						"platform" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"relay-subscribe" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Has the server subscribed to the relay system"],
-						"relay-scope" => ["type" => "varchar(10)", "not null" => "1", "default" => "", "comment" => "The scope of messages that the server wants to get"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"last_poco_query" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						"last_contact" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						"last_failure" => ["type" => "datetime", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"nurl" => ["UNIQUE", "nurl(190)"],
-						]
-				];
-		$database["gserver-tag"] = [
-				"comment" => "Tags that the server has subscribed",
-				"fields" => [
-						"gserver-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["gserver" => "id"], "primary" => "1", "comment" => "The id of the gserver"],
-						"tag" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "primary" => "1", "comment" => "Tag that the server has subscribed"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["gserver-id", "tag"],
-						"tag" => ["tag"],
-						]
-				];
-		$database["hook"] = [
-				"comment" => "addon hook registry",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"hook" => ["type" => "varbinary(100)", "not null" => "1", "default" => "", "comment" => "name of hook"],
-						"file" => ["type" => "varbinary(200)", "not null" => "1", "default" => "", "comment" => "relative filename of hook handler"],
-						"function" => ["type" => "varbinary(200)", "not null" => "1", "default" => "", "comment" => "function name of hook handler"],
-						"priority" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => "not yet implemented - can be used to sort conflicts in hook handling by calling handlers in priority order"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"hook_file_function" => ["UNIQUE", "hook", "file", "function"],
-						]
-				];
-		$database["intro"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"fid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["fcontact" => "id"], "comment" => ""],
-						"contact-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => ""],
-						"knowyou" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"duplex" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"note" => ["type" => "text", "comment" => ""],
-						"hash" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"datetime" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"blocked" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => ""],
-						"ignore" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["item"] = [
-				"comment" => "Structure for all posts",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "relation" => ["thread" => "iid"]],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this item"],
-						"uri" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"uri-hash" => ["type" => "varchar(80)", "not null" => "1", "default" => "", "comment" => "RIPEMD-128 hash from uri"],
-						"parent" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => "item.id of the parent to this item if it is a reply of some form; otherwise this must be set to the id of this item"],
-						"parent-uri" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "uri of the parent to this item"],
-						"thr-parent" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "If the parent of this item is not the top-level item in the conversation, the uri of the immediate parent; otherwise set to parent-uri"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Creation timestamp."],
-						"edited" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of last edit (default is created)"],
-						"commented" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of last comment/reply to this item"],
-						"received" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime"],
-						"changed" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date that something in the conversation changed, indicating clients should fetch the conversation again"],
-						"gravity" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => "Network from where the item comes from"],
-						"owner-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "Link to the contact table with uid=0 of the owner of this item"],
-						"author-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "Link to the contact table with uid=0 of the author of this item"],
-						"icid" => ["type" => "int unsigned", "relation" => ["item-content" => "id"], "comment" => "Id of the item-content table entry that contains the whole item content"],
-						"iaid" => ["type" => "int unsigned", "relation" => ["item-activity" => "id"], "comment" => "Id of the item-activity table entry that contains the activity data"],
-						"extid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"post-type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "Post type (personal note, bookmark, ...)"],
-						"global" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"private" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "distribution is restricted"],
-						"visible" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"moderated" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"deleted" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "item has been deleted"],
-						// User specific fields. Eventually they will move to user-item
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner id which owns this copy of the item"],
-						"contact-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "contact.id"],
-						"wall" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "This item was posted to the wall of uid"],
-						"origin" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "item originated at this site"],
-						"pubmail" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"starred" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "item has been favourited"],
-						"unseen" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => "item has not been seen"],
-						"mention" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "The owner of this item was mentioned in it"],
-						"forum_mode" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"psid" => ["type" => "int unsigned", "relation" => ["permissionset" => "id"], "comment" => "ID of the permission set of this post"],
-						// It has to be decided whether these fields belong to the user or the structure
-						"resource-id" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => "Used to link other tables to items, it identifies the linked resource (e.g. photo) and if set must also set resource_type"],
-						"event-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["event" => "id"], "comment" => "Used to link to the event.id"],
-						// Could possibly be replaced by the "attach" table?
-						"attach" => ["type" => "mediumtext", "comment" => "JSON structure representing attachments to this item"],
-						// Deprecated fields. Will be removed in upcoming versions
-						"allow_cid" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"postopts" => ["type" => "text", "comment" => "Deprecated"],
-						"inform" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"type" => ["type" => "varchar(20)", "comment" => "Deprecated"],
-						"bookmark" => ["type" => "boolean", "comment" => "Deprecated"],
-						"file" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"location" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"coord" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"tag" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"plink" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"title" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"content-warning" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"body" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						"app" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"verb" => ["type" => "varchar(100)", "comment" => "Deprecated"],
-						"object-type" => ["type" => "varchar(100)", "comment" => "Deprecated"],
-						"object" => ["type" => "text", "comment" => "Deprecated"],
-						"target-type" => ["type" => "varchar(100)", "comment" => "Deprecated"],
-						"target" => ["type" => "text", "comment" => "Deprecated"],
-						"author-name" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"author-link" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"author-avatar" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"owner-name" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"owner-link" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"owner-avatar" => ["type" => "varchar(255)", "comment" => "Deprecated"],
-						"rendered-hash" => ["type" => "varchar(32)", "comment" => "Deprecated"],
-						"rendered-html" => ["type" => "mediumtext", "comment" => "Deprecated"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"guid" => ["guid(191)"],
-						"uri" => ["uri(191)"],
-						"parent" => ["parent"],
-						"parent-uri" => ["parent-uri(191)"],
-						"extid" => ["extid(191)"],
-						"uid_id" => ["uid","id"],
-						"uid_contactid_id" => ["uid","contact-id","id"],
-						"uid_created" => ["uid","created"],
-						"uid_commented" => ["uid","commented"],
-						"uid_unseen_contactid" => ["uid","unseen","contact-id"],
-						"uid_network_received" => ["uid","network","received"],
-						"uid_network_commented" => ["uid","network","commented"],
-						"uid_thrparent" => ["uid","thr-parent(190)"],
-						"uid_parenturi" => ["uid","parent-uri(190)"],
-						"uid_contactid_created" => ["uid","contact-id","created"],
-						"authorid_created" => ["author-id","created"],
-						"ownerid" => ["owner-id"],
-						"uid_uri" => ["uid", "uri(190)"],
-						"resource-id" => ["resource-id"],
-						"deleted_changed" => ["deleted","changed"],
-						"uid_wall_changed" => ["uid","wall","changed"],
-						"uid_eventid" => ["uid","event-id"],
-						"icid" => ["icid"],
-						"iaid" => ["iaid"],
-						"psid_wall" => ["psid", "wall"],
-						]
-				];
-		$database["item-activity"] = [
-				"comment" => "Activities for items",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "relation" => ["thread" => "iid"]],
-						"uri" => ["type" => "varchar(255)", "comment" => ""],
-						"uri-hash" => ["type" => "varchar(80)", "not null" => "1", "default" => "", "comment" => "RIPEMD-128 hash from uri"],
-						"activity" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uri-hash" => ["UNIQUE", "uri-hash"],
-						"uri" => ["uri(191)"],
-						]
-				];
-		$database["item-content"] = [
-				"comment" => "Content for all posts",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "relation" => ["thread" => "iid"]],
-						"uri" => ["type" => "varchar(255)", "comment" => ""],
-						"uri-plink-hash" => ["type" => "varchar(80)", "not null" => "1", "default" => "", "comment" => "RIPEMD-128 hash from uri"],
-						"title" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "item title"],
-						"content-warning" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"body" => ["type" => "mediumtext", "comment" => "item body content"],
-						"location" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "text location where this item originated"],
-						"coord" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "longitude/latitude pair representing location where this item originated"],
-						"language" => ["type" => "text", "comment" => "Language information about this post"],
-						"app" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "application which generated this item"],
-						"rendered-hash" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"rendered-html" => ["type" => "mediumtext", "comment" => "item.body converted to html"],
-						"object-type" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "comment" => "ActivityStreams object type"],
-						"object" => ["type" => "text", "comment" => "JSON encoded object structure unless it is an implied object (normal post)"],
-						"target-type" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "comment" => "ActivityStreams target type if applicable (URI)"],
-						"target" => ["type" => "text", "comment" => "JSON encoded target structure if used"],
-						"plink" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "permalink or URL to a displayable copy of the message at its source"],
-						"verb" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "comment" => "ActivityStreams verb"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uri-plink-hash" => ["UNIQUE", "uri-plink-hash"],
-						"uri" => ["uri(191)"],
-						]
-				];
-		$database["item-delivery-data"] = [
-				"comment" => "Delivery data for items",
-				"fields" => [
-						"iid" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "relation" => ["item" => "id"], "comment" => "Item id"],
-						"postopts" => ["type" => "text", "comment" => "External post connectors add their network name to this comma-separated string to identify that they should be delivered to these networks during delivery"],
-						"inform" => ["type" => "mediumtext", "comment" => "Additional receivers of the linked item"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["iid"],
-						]
-				];
-		$database["locks"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"name" => ["type" => "varchar(128)", "not null" => "1", "default" => "", "comment" => ""],
-						"locked" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"pid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "Process ID"],
-						"expires" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of cache expiration"],
-				],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"name_expires" => ["name", "expires"]
-						]
-				];
-		$database["mail"] = [
-				"comment" => "private messages",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this private message"],
-						"from-name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "name of the sender"],
-						"from-photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "contact photo link of the sender"],
-						"from-url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "profile linke of the sender"],
-						"contact-id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "relation" => ["contact" => "id"], "comment" => "contact.id"],
-						"convid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["conv" => "id"], "comment" => "conv.id"],
-						"title" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"body" => ["type" => "mediumtext", "comment" => ""],
-						"seen" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "if message visited it is 1"],
-						"reply" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"replied" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"unknown" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "if sender not in the contact table this is 1"],
-						"uri" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"parent-uri" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "creation time of the private message"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_seen" => ["uid", "seen"],
-						"convid" => ["convid"],
-						"uri" => ["uri(64)"],
-						"parent-uri" => ["parent-uri(64)"],
-						"contactid" => ["contact-id(32)"],
-						]
-				];
-		$database["mailacct"] = [
-				"comment" => "Mail account data for fetching mails",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"server" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"port" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"ssltype" => ["type" => "varchar(16)", "not null" => "1", "default" => "", "comment" => ""],
-						"mailbox" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"user" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pass" => ["type" => "text", "comment" => ""],
-						"reply_to" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"action" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"movetofolder" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pubmail" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"last_check" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["manage"] = [
-				"comment" => "table of accounts that can manage each other",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"mid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_mid" => ["UNIQUE", "uid","mid"],
-						]
-				];
-		$database["notify"] = [
-				"comment" => "notifications",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"hash" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => ""],
-						"type" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"msg" => ["type" => "mediumtext", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"link" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"iid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => "item.id"],
-						"parent" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => ""],
-						"seen" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"verb" => ["type" => "varchar(100)", "not null" => "1", "default" => "", "comment" => ""],
-						"otype" => ["type" => "varchar(10)", "not null" => "1", "default" => "", "comment" => ""],
-						"name_cache" => ["type" => "tinytext", "comment" => "Cached bbcode parsing of name"],
-						"msg_cache" => ["type" => "mediumtext", "comment" => "Cached bbcode parsing of msg"]
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"hash_uid" => ["hash", "uid"],
-						"seen_uid_date" => ["seen", "uid", "date"],
-						"uid_date" => ["uid", "date"],
-						"uid_type_link" => ["uid", "type", "link(190)"],
-						]
-				];
-		$database["notify-threads"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"notify-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["notify" => "id"], "comment" => ""],
-						"master-parent-item" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => ""],
-						"parent-item" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"receiver-uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["oembed"] = [
-				"comment" => "cache for OEmbed queries",
-				"fields" => [
-						"url" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "page url"],
-						"maxwidth" => ["type" => "mediumint unsigned", "not null" => "1", "primary" => "1", "comment" => "Maximum width passed to Oembed"],
-						"content" => ["type" => "mediumtext", "comment" => "OEmbed data of the page"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of creation"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["url", "maxwidth"],
-						"created" => ["created"],
-						]
-				];
-		$database["openwebauth-token"] = [
-				"comment" => "Store OpenWebAuth token to verify contacts",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"type" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => "Verify type"],
-						"token" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "A generated token"],
-						"meta" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of creation"],
-					],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["parsed_url"] = [
-				"comment" => "cache for 'parse_url' queries",
-				"fields" => [
-						"url" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "page url"],
-						"guessing" => ["type" => "boolean", "not null" => "1", "default" => "0", "primary" => "1", "comment" => "is the 'guessing' mode active?"],
-						"oembed" => ["type" => "boolean", "not null" => "1", "default" => "0", "primary" => "1", "comment" => "is the data the result of oembed?"],
-						"content" => ["type" => "mediumtext", "comment" => "page data"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "datetime of creation"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["url", "guessing", "oembed"],
-						"created" => ["created"],
-						]
-				];
-		$database["participation"] = [
-				"comment" => "Storage for participation messages from Diaspora",
-				"fields" => [
-						"iid" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "relation" => ["item" => "id"], "comment" => ""],
-						"server" => ["type" => "varchar(60)", "not null" => "1", "primary" => "1", "comment" => ""],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "relation" => ["contact" => "id"], "comment" => ""],
-						"fid" => ["type" => "int unsigned", "not null" => "1", "relation" => ["fcontact" => "id"], "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["iid", "server"]
-						]
-				];
-		$database["pconfig"] = [
-				"comment" => "personal (per user) configuration storage",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"cat" => ["type" => "varbinary(50)", "not null" => "1", "default" => "", "comment" => ""],
-						"k" => ["type" => "varbinary(100)", "not null" => "1", "default" => "", "comment" => ""],
-						"v" => ["type" => "mediumtext", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_cat_k" => ["UNIQUE", "uid", "cat", "k"],
-						]
-				];
-		$database["permissionset"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner id of this permission set"],
-						"allow_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed contact.id '<19><78>'"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed groups"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied contact.id"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied groups"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_allow_cid_allow_gid_deny_cid_deny_gid" => ["allow_cid(50)", "allow_gid(30)", "deny_cid(50)", "deny_gid(30)"],
-						]
-				];
-		$database["photo"] = [
-				"comment" => "photo storage",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"contact-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "contact.id"],
-						"guid" => ["type" => "char(16)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this photo"],
-						"resource-id" => ["type" => "char(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "creation date"],
-						"edited" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "last edited date"],
-						"title" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"desc" => ["type" => "text", "comment" => ""],
-						"album" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "The name of the album to which the photo belongs"],
-						"filename" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"type" => ["type" => "varchar(30)", "not null" => "1", "default" => "image/jpeg"],
-						"height" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"width" => ["type" => "smallint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"datasize" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"data" => ["type" => "mediumblob", "not null" => "1", "comment" => ""],
-						"scale" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"profile" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"allow_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed contact.id '<19><78>'"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of allowed groups"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied contact.id"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "Access Control - list of denied groups"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"contactid" => ["contact-id"],
-						"uid_contactid" => ["uid", "contact-id"],
-						"uid_profile" => ["uid", "profile"],
-						"uid_album_scale_created" => ["uid", "album(32)", "scale", "created"],
-						"uid_album_resource-id_created" => ["uid", "album(32)", "resource-id", "created"],
-						"resource-id" => ["resource-id"],
-						]
-				];
-		$database["poll"] = [
-				"comment" => "Currently unused table for storing poll results",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"q0" => ["type" => "text", "comment" => ""],
-						"q1" => ["type" => "text", "comment" => ""],
-						"q2" => ["type" => "text", "comment" => ""],
-						"q3" => ["type" => "text", "comment" => ""],
-						"q4" => ["type" => "text", "comment" => ""],
-						"q5" => ["type" => "text", "comment" => ""],
-						"q6" => ["type" => "text", "comment" => ""],
-						"q7" => ["type" => "text", "comment" => ""],
-						"q8" => ["type" => "text", "comment" => ""],
-						"q9" => ["type" => "text", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid" => ["uid"],
-						]
-				];
-		$database["poll_result"] = [
-				"comment" => "data for polls - currently unused",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"poll_id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["poll" => "id"]],
-						"choice" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"poll_id" => ["poll_id"],
-						]
-				];
-		$database["process"] = [
-				"comment" => "Currently running system processes",
-				"fields" => [
-						"pid" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "comment" => ""],
-						"command" => ["type" => "varbinary(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["pid"],
-						"command" => ["command"],
-						]
-				];
-		$database["profile"] = [
-				"comment" => "user profiles data",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner User id"],
-						"profile-name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Name of the profile"],
-						"is-default" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Mark this profile as default profile"],
-						"hide-friends" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Hide friend list from viewers of this profile"],
-						"name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pdesc" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Title or description"],
-						"dob" => ["type" => "varchar(32)", "not null" => "1", "default" => "0000-00-00", "comment" => "Day of birth"],
-						"address" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"locality" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"region" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"postal-code" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"country-name" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"hometown" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"gender" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => ""],
-						"marital" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"with" => ["type" => "text", "comment" => ""],
-						"howlong" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"sexual" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"politic" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"religion" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"pub_keywords" => ["type" => "text", "comment" => ""],
-						"prv_keywords" => ["type" => "text", "comment" => ""],
-						"likes" => ["type" => "text", "comment" => ""],
-						"dislikes" => ["type" => "text", "comment" => ""],
-						"about" => ["type" => "text", "comment" => ""],
-						"summary" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"music" => ["type" => "text", "comment" => ""],
-						"book" => ["type" => "text", "comment" => ""],
-						"tv" => ["type" => "text", "comment" => ""],
-						"film" => ["type" => "text", "comment" => ""],
-						"interest" => ["type" => "text", "comment" => ""],
-						"romance" => ["type" => "text", "comment" => ""],
-						"work" => ["type" => "text", "comment" => ""],
-						"education" => ["type" => "text", "comment" => ""],
-						"contact" => ["type" => "text", "comment" => ""],
-						"homepage" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"xmpp" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"photo" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"thumb" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"publish" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "publish default profile in local directory"],
-						"net-publish" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "publish profile in global directory"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid_is-default" => ["uid", "is-default"],
-						]
-				];
-		$database["profile_check"] = [
-				"comment" => "DFRN remote auth use",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "contact.id"],
-						"dfrn_id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"sec" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"expire" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["push_subscriber"] = [
-				"comment" => "Used for OStatus: Contains feed subscribers",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"callback_url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"topic" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"nickname" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"push" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => "Retrial counter"],
-						"last_update" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of last successful trial"],
-						"next_try" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Next retrial date"],
-						"renewed" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of last subscription renewal"],
-						"secret" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"next_try" => ["next_try"],
-						]
-				];
-		$database["queue"] = [
-				"comment" => "Queue for messages that couldn't be delivered",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "Message receiver"],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => "Receiver's network"],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Unique GUID of the message"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date, when the message was created"],
-						"last" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Date of last trial"],
-						"next" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Next retrial date"],
-						"retrial" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => "Retrial counter"],
-						"content" => ["type" => "mediumtext", "comment" => ""],
-						"batch" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"last" => ["last"],
-						"next" => ["next"],
-						]
-				];
-		$database["register"] = [
-				"comment" => "registrations requiring admin approval",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"hash" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"password" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"language" => ["type" => "varchar(16)", "not null" => "1", "default" => "", "comment" => ""],
-						"note" => ["type" => "text", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["search"] = [
-				"comment" => "",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"term" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"uid" => ["uid"],
-						]
-				];
-		$database["session"] = [
-				"comment" => "web session storage",
-				"fields" => [
-						"id" => ["type" => "bigint unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"sid" => ["type" => "varbinary(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"data" => ["type" => "text", "comment" => ""],
-						"expire" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"sid" => ["sid(64)"],
-						"expire" => ["expire"],
-						]
-				];
-		$database["sign"] = [
-				"comment" => "Diaspora signatures",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"iid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => "item.id"],
-						"signed_text" => ["type" => "mediumtext", "comment" => ""],
-						"signature" => ["type" => "text", "comment" => ""],
-						"signer" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"iid" => ["UNIQUE", "iid"],
-						]
-				];
-		$database["term"] = [
-				"comment" => "item taxonomy (categories, tags, etc.) table",
-				"fields" => [
-						"tid" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-						"oid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["item" => "id"], "comment" => ""],
-						"otype" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"term" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"url" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"guid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"received" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"global" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["tid"],
-						"oid_otype_type_term" => ["oid","otype","type","term(32)"],
-						"uid_otype_type_term_global_created" => ["uid","otype","type","term(32)","global","created"],
-						"uid_otype_type_url" => ["uid","otype","type","url(64)"],
-						"guid" => ["guid(64)"],
-						]
-				];
-		$database["thread"] = [
-				"comment" => "Thread related data",
-				"fields" => [
-						"iid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "primary" => "1", "relation" => ["item" => "id"], "comment" => "sequential ID"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"contact-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => ""],
-						"owner-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "Item owner"],
-						"author-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["contact" => "id"], "comment" => "Item author"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"edited" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"commented" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"received" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"changed" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => ""],
-						"wall" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"private" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"pubmail" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"moderated" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"visible" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"starred" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"ignored" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"post-type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "Post type (personal note, bookmark, ...)"],
-						"unseen" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => ""],
-						"deleted" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"origin" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"forum_mode" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"mention" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"network" => ["type" => "char(4)", "not null" => "1", "default" => "", "comment" => ""],
-						"bookmark" => ["type" => "boolean", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["iid"],
-						"uid_network_commented" => ["uid","network","commented"],
-						"uid_network_created" => ["uid","network","created"],
-						"uid_contactid_commented" => ["uid","contact-id","commented"],
-						"uid_contactid_created" => ["uid","contact-id","created"],
-						"contactid" => ["contact-id"],
-						"ownerid" => ["owner-id"],
-						"authorid" => ["author-id"],
-						"uid_created" => ["uid","created"],
-						"uid_commented" => ["uid","commented"],
-						"uid_wall_created" => ["uid","wall","created"],
-						"private_wall_origin_commented" => ["private","wall","origin","commented"],
-						]
-				];
-		$database["tokens"] = [
-				"comment" => "OAuth usage",
-				"fields" => [
-						"id" => ["type" => "varchar(40)", "not null" => "1", "primary" => "1", "comment" => ""],
-						"secret" => ["type" => "text", "comment" => ""],
-						"client_id" => ["type" => "varchar(20)", "not null" => "1", "default" => "", "relation" => ["clients" => "client_id"]],
-						"expires" => ["type" => "int", "not null" => "1", "default" => "0", "comment" => ""],
-						"scope" => ["type" => "varchar(200)", "not null" => "1", "default" => "", "comment" => ""],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "User id"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						]
-				];
-		$database["user"] = [
-				"comment" => "The local users",
-				"fields" => [
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"parent-uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "The parent user that has full control about this user"],
-						"guid" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this user"],
-						"username" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Name that this user is known by"],
-						"password" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "encrypted password"],
-						"legacy_password" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Is the password hash double-hashed?"],
-						"nickname" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "nick- and user name"],
-						"email" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "the users email address"],
-						"openid" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-						"timezone" => ["type" => "varchar(128)", "not null" => "1", "default" => "", "comment" => "PHP-legal timezone"],
-						"language" => ["type" => "varchar(32)", "not null" => "1", "default" => "en", "comment" => "default language"],
-						"register_date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "timestamp of registration"],
-						"login_date" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "timestamp of last login"],
-						"default-location" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Default for item.location"],
-						"allow_location" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 allows to display the location"],
-						"theme" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "user theme preference"],
-						"pubkey" => ["type" => "text", "comment" => "RSA public key 4096 bit"],
-						"prvkey" => ["type" => "text", "comment" => "RSA private key 4096 bit"],
-						"spubkey" => ["type" => "text", "comment" => ""],
-						"sprvkey" => ["type" => "text", "comment" => ""],
-						"verified" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "user is verified through email"],
-						"blocked" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 for user is blocked"],
-						"blockwall" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Prohibit contacts to post to the profile page of the user"],
-						"hidewall" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Hide profile details from unkown viewers"],
-						"blocktags" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Prohibit contacts to tag the post of this user"],
-						"unkmail" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Permit unknown people to send private mails to this user"],
-						"cntunkmail" => ["type" => "int unsigned", "not null" => "1", "default" => "10", "comment" => ""],
-						"notify-flags" => ["type" => "smallint unsigned", "not null" => "1", "default" => "65535", "comment" => "email notification options"],
-						"page-flags" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "page/profile type"],
-						"account-type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"prvnets" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"pwdreset" => ["type" => "varchar(255)", "comment" => "Password reset request token"],
-						"pwdreset_time" => ["type" => "datetime", "comment" => "Timestamp of the last password reset request"],
-						"maxreq" => ["type" => "int unsigned", "not null" => "1", "default" => "10", "comment" => ""],
-						"expire" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"account_removed" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "if 1 the account is removed"],
-						"account_expired" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => ""],
-						"account_expires_on" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "timestamp when account expires and will be deleted"],
-						"expire_notification_sent" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "timestamp of last warning of account expiration"],
-						"def_gid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-						"allow_cid" => ["type" => "mediumtext", "comment" => "default permission for this user"],
-						"allow_gid" => ["type" => "mediumtext", "comment" => "default permission for this user"],
-						"deny_cid" => ["type" => "mediumtext", "comment" => "default permission for this user"],
-						"deny_gid" => ["type" => "mediumtext", "comment" => "default permission for this user"],
-						"openidserver" => ["type" => "text", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["uid"],
-						"nickname" => ["nickname(32)"],
-						]
-				];
-		$database["userd"] = [
-				"comment" => "Deleted usernames",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-						"username" => ["type" => "varchar(255)", "not null" => "1", "comment" => ""],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"username" => ["username(32)"],
-						]
-				];
-		$database["user-item"] = [
-				"comment" => "User specific item data",
-				"fields" => [
-						"iid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "primary" => "1", "relation" => ["item" => "id"], "comment" => "Item id"],
-						"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "primary" => "1", "relation" => ["user" => "uid"], "comment" => "User id"],
-						"hidden" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Marker to hide an item from the user"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["uid", "iid"],
-						]
-				];
-		$database["worker-ipc"] = [
-				"comment" => "Inter process communication between the frontend and the worker",
-				"fields" => [
-						"key" => ["type" => "int", "not null" => "1", "primary" => "1", "comment" => ""],
-						"jobs" => ["type" => "boolean", "comment" => "Flag for outstanding jobs"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["key"],
-						],
-				"engine" => "MEMORY",
-				];
+		$filename = $a->get_basepath() . '/config/dbstructure.json';
 
-		$database["workerqueue"] = [
-				"comment" => "Background tasks queue entries",
-				"fields" => [
-						"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "Auto incremented worker task id"],
-						"parameter" => ["type" => "mediumblob", "comment" => "Task command"],
-						"priority" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "Task priority"],
-						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Creation date"],
-						"pid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "Process id of the worker"],
-						"executed" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Execution date"],
-						"done" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "Marked 1 when the task was done - will be deleted later"],
-						],
-				"indexes" => [
-						"PRIMARY" => ["id"],
-						"pid" => ["pid"],
-						"parameter" => ["parameter(64)"],
-						"priority_created" => ["priority", "created"],
-						"done_executed" => ["done", "executed"],
-						]
-				];
+		if (!is_readable($filename)) {
+			throw new Exception('Missing database structure config file config/dbstructure.json');
+		}
+
+		$json = file_get_contents($filename);
+
+		$database = json_decode($json, true);
+
+		if (!$database) {
+			throw new Exception('Corrupted database structure config file config/dbstructure.json');
+		}
 
 		Addon::callHooks('dbstructure_definition', $database);