friendica/doc/database/db_mail.md

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Table mail
===========
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private messages
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Fields
------
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| Field | Description | Type | Null | Key | Default | Extra |
| ------------- | -------------------------------------------------------------- | ------------------ | ---- | --- | ------------------- | -------------- |
| id | sequential ID | int unsigned | NO | PRI | NULL | auto_increment |
| uid | Owner User id | mediumint unsigned | NO | | 0 | |
| guid | A unique identifier for this private message | varchar(255) | NO | | | |
| from-name | name of the sender | varchar(255) | NO | | | |
| from-photo | contact photo link of the sender | varchar(255) | NO | | | |
| from-url | profile linke of the sender | varchar(255) | NO | | | |
| contact-id | contact.id | varchar(255) | YES | | NULL | |
| author-id | Link to the contact table with uid=0 of the author of the mail | int unsigned | YES | | NULL | |
| convid | conv.id | int unsigned | YES | | NULL | |
| title | | varchar(255) | NO | | | |
| body | | mediumtext | YES | | NULL | |
| seen | if message visited it is 1 | boolean | NO | | 0 | |
| reply | | boolean | NO | | 0 | |
| replied | | boolean | NO | | 0 | |
| unknown | if sender not in the contact table this is 1 | boolean | NO | | 0 | |
| uri | | varchar(255) | NO | | | |
| uri-id | Item-uri id of the related mail | int unsigned | YES | | NULL | |
| parent-uri | | varchar(255) | NO | | | |
| parent-uri-id | Item-uri id of the parent of the related mail | int unsigned | YES | | NULL | |
| thr-parent | | varchar(255) | YES | | NULL | |
| thr-parent-id | Id of the item-uri table that contains the thread parent uri | int unsigned | YES | | NULL | |
| created | creation time of the private message | datetime | NO | | 0001-01-01 00:00:00 | |
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Indexes
------------
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| Name | Fields |
| ------------- | -------------- |
| PRIMARY | id |
| uid_seen | uid, seen |
| convid | convid |
| uri | uri(64) |
| parent-uri | parent-uri(64) |
| contactid | contact-id(32) |
| author-id | author-id |
| uri-id | uri-id |
| parent-uri-id | parent-uri-id |
| thr-parent-id | thr-parent-id |
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Foreign Keys
------------
| Field | Target Table | Target Field |
|-------|--------------|--------------|
| uid | [user](help/database/db_user) | uid |
| author-id | [contact](help/database/db_contact) | id |
| uri-id | [item-uri](help/database/db_item-uri) | id |
| parent-uri-id | [item-uri](help/database/db_item-uri) | id |
| thr-parent-id | [item-uri](help/database/db_item-uri) | id |
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Return to [database documentation](help/database)