From dbbe6efd27cde052402e1d9995f77feb95d1c265 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 00:19:05 +0200
Subject: [PATCH 01/14] Fix ostatus bug related to only_full_group_by

https://github.com/friendica/friendica/issues/3322
---
 include/ostatus.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ostatus.php b/include/ostatus.php
index e0b33a1a47..ee405397cc 100644
--- a/include/ostatus.php
+++ b/include/ostatus.php
@@ -720,7 +720,7 @@ class ostatus {
 			$conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 						STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 						WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
-						GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
+						GROUP BY `term`.`url`, `term`.`uid`, `term`.`oid`, `term`.`term` ORDER BY `term`.`term` DESC", dbesc($start));
 		} else {
 			$conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 						WHERE `type` = 7 AND `term` > '%s'

From 15a44d945b9219a75e519e6cb4b0563b6ea378f7 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 01:06:08 +0200
Subject: [PATCH 02/14] Another GROUP BY fix for MySQL

https://github.com/friendica/friendica/issues/3322
---
 include/ostatus.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ostatus.php b/include/ostatus.php
index ee405397cc..e0ed1df19a 100644
--- a/include/ostatus.php
+++ b/include/ostatus.php
@@ -724,7 +724,7 @@ class ostatus {
 		} else {
 			$conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 						WHERE `type` = 7 AND `term` > '%s'
-						GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
+						GROUP BY `url`, `uid`, `oid`, `term` ORDER BY `term` DESC", dbesc($start));
 		}
 
 		foreach ($conversations AS $conversation) {

From c3e933642e6ad761c91888006b45efa69915d691 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 14:17:16 +0200
Subject: [PATCH 03/14] Fix missing SQL group by in ping

https://github.com/friendica/friendica/issues/3322
---
 mod/ping.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mod/ping.php b/mod/ping.php
index b5330c7b33..0b82e71d39 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -201,6 +201,7 @@ function ping_init(App $a)
 		if (is_null($ev)) {
 			$ev = qu("SELECT count(`event`.`id`) AS total, type, start, adjust FROM `event`
 				WHERE `event`.`uid` = %d AND `start` < '%s' AND `finish` > '%s' and `ignore` = 0
+				GROUP BY type, start, adjust
 				ORDER BY `start` ASC ",
 				intval(local_user()),
 				dbesc(datetime_convert('UTC', 'UTC', 'now + 7 days')),

From 74b6d09e89bbe87e94ebb458d8a76415e324d1d3 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 15:11:50 +0200
Subject: [PATCH 04/14] Fix GROUP BY in acl_selector, api, notifier, photos,
 messages

https://github.com/friendica/friendica/issues/3322
---
 include/acl_selectors.php | 4 ++--
 include/api.php           | 8 +++++---
 include/notifier.php      | 2 +-
 include/photos.php        | 4 ++--
 mod/message.php           | 4 ++--
 mod/photos.php            | 2 +-
 mod/videos.php            | 2 +-
 7 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/include/acl_selectors.php b/include/acl_selectors.php
index f4b644d68f..87230a1409 100644
--- a/include/acl_selectors.php
+++ b/include/acl_selectors.php
@@ -502,7 +502,7 @@ function acl_lookup(App $a, $out_type = 'json') {
 				INNER JOIN `group_member` ON `group_member`.`gid`=`group`.`id` AND `group_member`.`uid` = `group`.`uid`
 				WHERE NOT `group`.`deleted` AND `group`.`uid` = %d
 					$sql_extra
-				GROUP BY `group`.`name`
+				GROUP BY `group`.`name`, `group`.`id`
 				ORDER BY `group`.`name`
 				LIMIT %d,%d",
 			intval(local_user()),
@@ -619,7 +619,7 @@ function acl_lookup(App $a, $out_type = 'json') {
 				FROM `item` WHERE `parent` = %d
 					AND (`author-name` LIKE '%%%s%%' OR `author-link` LIKE '%%%s%%')
 					AND `author-link` NOT IN ('%s')
-				GROUP BY `author-link`
+				GROUP BY `author-link`, `author-avatar`, `author-name`
 				ORDER BY `author-name` ASC
 				",
 				intval($conv_id),
diff --git a/include/api.php b/include/api.php
index 9fc853340a..477eb94b4e 100644
--- a/include/api.php
+++ b/include/api.php
@@ -3064,7 +3064,7 @@ use \Friendica\Core\Config;
 	function api_fr_photos_list($type) {
 		if (api_user()===false) throw new ForbiddenException();
 		$r = q("select `resource-id`, max(scale) as scale, album, filename, type from photo
-				where uid = %d and album != 'Contact Photos' group by `resource-id`",
+				where uid = %d and album != 'Contact Photos' group by `resource-id`, album, filename, type",
 			intval(local_user())
 		);
 		$typetoext = array(
@@ -3102,8 +3102,10 @@ use \Friendica\Core\Config;
 		$data_sql = ($scale === false ? "" : "data, ");
 
 		$r = q("select %s `resource-id`, `created`, `edited`, `title`, `desc`, `album`, `filename`,
-						`type`, `height`, `width`, `datasize`, `profile`, min(`scale`) as minscale, max(`scale`) as maxscale
-				from photo where `uid` = %d and `resource-id` = '%s' %s group by `resource-id`",
+					`type`, `height`, `width`, `datasize`, `profile`, min(`scale`) as minscale, max(`scale`) as maxscale
+				from photo where `uid` = %d and `resource-id` = '%s' %s
+				group by `resource-id`, `created`, `edited`, `title`, `desc`, `album`, `filename`,
+					`type`, `height`, `width`, `datasize`, `profile`",
 			$data_sql,
 			intval(local_user()),
 			dbesc($_REQUEST['photo_id']),
diff --git a/include/notifier.php b/include/notifier.php
index e3d7d10d6b..ed34288e8f 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -517,7 +517,7 @@ function notifier_run(&$argv, &$argc){
 			}
 
 			$r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
-				AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch` ORDER BY rand()",
+				AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch`, `id` ORDER BY rand()",
 				dbesc(NETWORK_DIASPORA),
 				intval($owner['uid']),
 				intval(CONTACT_IS_SHARING)
diff --git a/include/photos.php b/include/photos.php
index 9d8d3309c2..02d1b17403 100644
--- a/include/photos.php
+++ b/include/photos.php
@@ -51,7 +51,7 @@ function photo_albums($uid, $update = false) {
 			$albums = qu("SELECT COUNT(DISTINCT `resource-id`) AS `total`, `album`
 				FROM `photo`
 				WHERE `uid` = %d  AND `album` != '%s' AND `album` != '%s' $sql_extra
-				GROUP BY `album` ORDER BY `created` DESC",
+				GROUP BY `album`, `created` ORDER BY `created` DESC",
 				intval($uid),
 				dbesc('Contact Photos'),
 				dbesc(t('Contact Photos'))
@@ -61,7 +61,7 @@ function photo_albums($uid, $update = false) {
 			$albums = qu("SELECT DISTINCT(`album`), '' AS `total`
 				FROM `photo`
 				WHERE `uid` = %d  AND `album` != '%s' AND `album` != '%s' $sql_extra
-				GROUP BY `album` ORDER BY `created` DESC",
+				GROUP BY `album`, `created` ORDER BY `created` DESC",
 				intval($uid),
 				dbesc('Contact Photos'),
 				dbesc(t('Contact Photos'))
diff --git a/mod/message.php b/mod/message.php
index 9e96691466..05a8d36f68 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -350,7 +350,7 @@ function message_content(App $a) {
 		$o .= $header;
 
 		$r = q("SELECT count(*) AS `total` FROM `mail`
-			WHERE `mail`.`uid` = %d GROUP BY `parent-uri` ORDER BY `created` DESC",
+			WHERE `mail`.`uid` = %d GROUP BY `parent-uri`, `created` ORDER BY `created` DESC",
 			intval(local_user())
 		);
 
@@ -533,7 +533,7 @@ function get_messages($user, $lstart, $lend) {
 		`mail`.* , `contact`.`name`, `contact`.`url`, `contact`.`thumb` , `contact`.`network`,
 		count( * ) as count
 		FROM `mail` LEFT JOIN `contact` ON `mail`.`contact-id` = `contact`.`id`
-		WHERE `mail`.`uid` = %d GROUP BY `parent-uri` ORDER BY `mailcreated` DESC  LIMIT %d , %d ",
+		WHERE `mail`.`uid` = %d GROUP BY `parent-uri`, `mail`.id ORDER BY `mailcreated` DESC  LIMIT %d , %d ",
 		intval($user), intval($lstart), intval($lend)
 	);
 }
diff --git a/mod/photos.php b/mod/photos.php
index 3acd39b2af..a24cee2559 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -1241,7 +1241,7 @@ function photos_content(App $a) {
 		}
 
 		$r = q("SELECT `resource-id`, `id`, `filename`, type, max(`scale`) AS `scale`, `desc` FROM `photo` WHERE `uid` = %d AND `album` = '%s'
-			AND `scale` <= 4 $sql_extra GROUP BY `resource-id` ORDER BY `created` $order LIMIT %d , %d",
+			AND `scale` <= 4 $sql_extra GROUP BY `resource-id`, `id` ORDER BY `created` $order LIMIT %d , %d",
 			intval($owner_uid),
 			dbesc($album),
 			intval($a->pager['start']),
diff --git a/mod/videos.php b/mod/videos.php
index 3828b8f1fe..ea2e0d4a24 100644
--- a/mod/videos.php
+++ b/mod/videos.php
@@ -358,7 +358,7 @@ function videos_content(App $a) {
 
 	$r = q("SELECT hash, `id`, `filename`, filetype FROM `attach`
 		WHERE `uid` = %d AND filetype LIKE '%%video%%'
-		$sql_extra GROUP BY hash ORDER BY `created` DESC LIMIT %d , %d",
+		$sql_extra GROUP BY hash, `id` ORDER BY `created` DESC LIMIT %d , %d",
 		intval($a->data['user']['uid']),
 		intval($a->pager['start']),
 		intval($a->pager['itemspage'])

From 9fb4ba2b733d59b8a704cb8df846c3b43769503d Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 18:49:29 +0200
Subject: [PATCH 05/14] Fix profile wrong DISTINCT + ORDER BY

Fix: ERROR 3065 (HY000) Expression #1 of ORDER BY clause is not in
SELECT list, references column 'friendica.item.created' which is not in
SELECT list; this is incompatible with DISTINCT
---
 mod/profile.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/profile.php b/mod/profile.php
index fbce509d29..a83cb076f2 100644
--- a/mod/profile.php
+++ b/mod/profile.php
@@ -210,7 +210,7 @@ function profile_content(App $a, $update = 0) {
 
 	if ($update) {
 
-		$r = q("SELECT distinct(parent) AS `item_id`, `item`.`network` AS `item_network`
+		$r = q("SELECT distinct(parent) AS `item_id`, `item`.`network` AS `item_network`, `item`.`created`
 			FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 			AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 			WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND

From 534ea6aefcc480bcd01cfd478cc7f75d2f4373d2 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 18:54:54 +0200
Subject: [PATCH 06/14] Fix ping_init SQL

According to review
https://github.com/friendica/friendica/pull/3323#pullrequestreview-32401628
---
 mod/ping.php | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mod/ping.php b/mod/ping.php
index 0b82e71d39..ba496a70bd 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -199,9 +199,8 @@ function ping_init(App $a)
 		$cachekey = "ping_init:".local_user();
 		$ev = Cache::get($cachekey);
 		if (is_null($ev)) {
-			$ev = qu("SELECT count(`event`.`id`) AS total, type, start, adjust FROM `event`
+			$ev = qu("SELECT type, start, adjust FROM `event`
 				WHERE `event`.`uid` = %d AND `start` < '%s' AND `finish` > '%s' and `ignore` = 0
-				GROUP BY type, start, adjust
 				ORDER BY `start` ASC ",
 				intval(local_user()),
 				dbesc(datetime_convert('UTC', 'UTC', 'now + 7 days')),
@@ -213,7 +212,7 @@ function ping_init(App $a)
 		}
 
 		if (dbm::is_result($ev)) {
-			$all_events = intval($ev[0]['total']);
+			$all_events = count($ev);
 
 			if ($all_events) {
 				$str_now = datetime_convert('UTC', $a->timezone, 'now', 'Y-m-d');

From 38e7a0f7933461702275a846a85e9dc3ae5dd97e Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Wed, 12 Apr 2017 22:55:02 +0200
Subject: [PATCH 07/14] Fix GROUP BY for search

https://github.com/friendica/friendica/issues/3322
Fix MySQL ERROR 1055 (42000): Expression #1 of SELECT list is not in
GROUP BY clause and contains nonaggregated column
'friendica.item.author-id' which is not functionally dependent on
columns in GROUP BY clause; this is incompatible with
sql_mode=only_full_group_by
---
 mod/search.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/search.php b/mod/search.php
index 7d588aa4d1..f274b2a879 100644
--- a/mod/search.php
+++ b/mod/search.php
@@ -214,7 +214,7 @@ function search_content(App $a) {
 			FROM `item` %s
 			WHERE %s AND (`item`.`uid` = 0 OR (`item`.`uid` = %s AND NOT `item`.`global`))
 				$sql_extra
-			GROUP BY `item`.`uri` ORDER BY `item`.`id` DESC LIMIT %d , %d",
+			GROUP BY `item`.`uri`, `item`.`id` ORDER BY `item`.`id` DESC LIMIT %d , %d",
 				item_fieldlists(), item_joins(), item_condition(),
 				intval(local_user()),
 				intval($a->pager['start']), intval($a->pager['itemspage']));

From 1058b28ceabcec802932fc33bb79e6ce7814f945 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 00:42:44 +0200
Subject: [PATCH 08/14] MySQL ANY_VALUE with fallback to MIN

https://github.com/friendica/friendica/issues/3322
---
 include/api.php      | 13 +++++++------
 include/dba.php      | 10 ++++++++++
 include/notifier.php |  5 +++--
 include/photos.php   |  8 ++++----
 mod/message.php      | 16 ++++++++++------
 mod/photos.php       |  6 ++++--
 mod/videos.php       |  6 ++++--
 7 files changed, 42 insertions(+), 22 deletions(-)

diff --git a/include/api.php b/include/api.php
index 477eb94b4e..75f8ab069a 100644
--- a/include/api.php
+++ b/include/api.php
@@ -3099,13 +3099,14 @@ use \Friendica\Core\Config;
 
 		$scale = (x($_REQUEST, 'scale') ? intval($_REQUEST['scale']) : false);
 		$scale_sql = ($scale === false ? "" : sprintf("and scale=%d",intval($scale)));
-		$data_sql = ($scale === false ? "" : "data, ");
+		$data_sql = ($scale === false ? "" : "ANY_VALUE(data) AS data,");
 
-		$r = q("select %s `resource-id`, `created`, `edited`, `title`, `desc`, `album`, `filename`,
-					`type`, `height`, `width`, `datasize`, `profile`, min(`scale`) as minscale, max(`scale`) as maxscale
-				from photo where `uid` = %d and `resource-id` = '%s' %s
-				group by `resource-id`, `created`, `edited`, `title`, `desc`, `album`, `filename`,
-					`type`, `height`, `width`, `datasize`, `profile`",
+		$r = q("select %s ANY_VALUE(`resource-id`) AS `resource-id`, ANY_VALUE(`created`) AS `created`,
+				ANY_VALUE(`edited`) AS `edited`, ANY_VALUE(`title`) AS `title`, ANY_VALUE(`desc`) AS `desc`,
+				ANY_VALUE(`album`) AS `album`, ANY_VALUE(`filename`) AS `filename`, ANY_VALUE(`type`) AS `type`,
+				ANY_VALUE(`height`) AS `height`, ANY_VALUE(`width`) AS `width`, ANY_VALUE(`datasize`) AS `datasize`,
+				ANY_VALUE(`profile`) AS `profile`, min(`scale`) as minscale, max(`scale`) as maxscale
+				from photo where `uid` = %d and `resource-id` = '%s' %s",
 			$data_sql,
 			intval(local_user()),
 			dbesc($_REQUEST['photo_id']),
diff --git a/include/dba.php b/include/dba.php
index 62728acaed..96df072cfa 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -504,6 +504,14 @@ function dbesc($str) {
 	}
 }
 
+function any_value_fallback($sql) {
+	//Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
+	//ANY_VALUE() is available from MySQL 5.7 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
+	//A standard fallback is to use MIN(), or nothing () in old MySQL 5.6-
+	//TODO: Skip this line when we know we are on a platform supporting ANY_VALUE()
+	return str_ireplace('ANY_VALUE(', 'MIN(', $sql);
+}
+
 // Function: q($sql,$args);
 // Description: execute SQL query with printf style args.
 // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
@@ -514,6 +522,7 @@ function q($sql) {
 	unset($args[0]);
 
 	if ($db && $db->connected) {
+		$sql = any_value_fallback($sql);
 		$stmt = @vsprintf($sql,$args); // Disabled warnings
 		//logger("dba: q: $stmt", LOGGER_ALL);
 		if ($stmt === false)
@@ -550,6 +559,7 @@ function qu($sql) {
 	unset($args[0]);
 
 	if ($db && $db->connected) {
+		$sql = any_value_fallback($sql);
 		$stmt = @vsprintf($sql,$args); // Disabled warnings
 		if ($stmt === false)
 			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
diff --git a/include/notifier.php b/include/notifier.php
index ed34288e8f..370611b4eb 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -516,8 +516,9 @@ function notifier_run(&$argv, &$argc){
 				$r0 = Diaspora::relay_list();
 			}
 
-			$r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
-				AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch`, `id` ORDER BY rand()",
+			$r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
+				FROM `contact` WHERE `network` = '%s'
+				AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch` ORDER BY rand()",
 				dbesc(NETWORK_DIASPORA),
 				intval($owner['uid']),
 				intval(CONTACT_IS_SHARING)
diff --git a/include/photos.php b/include/photos.php
index 02d1b17403..b273c1726b 100644
--- a/include/photos.php
+++ b/include/photos.php
@@ -48,20 +48,20 @@ function photo_albums($uid, $update = false) {
 		if (!Config::get('system', 'no_count', false)) {
 			/// @todo This query needs to be renewed. It is really slow
 			// At this time we just store the data in the cache
-			$albums = qu("SELECT COUNT(DISTINCT `resource-id`) AS `total`, `album`
+			$albums = qu("SELECT COUNT(DISTINCT `resource-id`) AS `total`, `album`, ANY_VALUE(`created`) AS `created`
 				FROM `photo`
 				WHERE `uid` = %d  AND `album` != '%s' AND `album` != '%s' $sql_extra
-				GROUP BY `album`, `created` ORDER BY `created` DESC",
+				GROUP BY `album` ORDER BY `created` DESC",
 				intval($uid),
 				dbesc('Contact Photos'),
 				dbesc(t('Contact Photos'))
 			);
 		} else {
 			// This query doesn't do the count and is much faster
-			$albums = qu("SELECT DISTINCT(`album`), '' AS `total`
+			$albums = qu("SELECT DISTINCT(`album`), '' AS `total`, ANY_VALUE(`created`) AS `created`
 				FROM `photo`
 				WHERE `uid` = %d  AND `album` != '%s' AND `album` != '%s' $sql_extra
-				GROUP BY `album`, `created` ORDER BY `created` DESC",
+				GROUP BY `album` ORDER BY `created` DESC",
 				intval($uid),
 				dbesc('Contact Photos'),
 				dbesc(t('Contact Photos'))
diff --git a/mod/message.php b/mod/message.php
index 05a8d36f68..dd13d58be6 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -349,8 +349,8 @@ function message_content(App $a) {
 
 		$o .= $header;
 
-		$r = q("SELECT count(*) AS `total` FROM `mail`
-			WHERE `mail`.`uid` = %d GROUP BY `parent-uri`, `created` ORDER BY `created` DESC",
+		$r = q("SELECT count(*) AS `total` FROM `mail`, ANY_VALUE(`created`) AS `created`
+			WHERE `mail`.`uid` = %d GROUP BY `parent-uri` ORDER BY `created` DESC",
 			intval(local_user())
 		);
 
@@ -528,12 +528,16 @@ function message_content(App $a) {
 }
 
 function get_messages($user, $lstart, $lend) {
-
+	//TODO: rewritte with a sub-query to get the first message of each private thread with certainty
 	return q("SELECT max(`mail`.`created`) AS `mailcreated`, min(`mail`.`seen`) AS `mailseen`,
-		`mail`.* , `contact`.`name`, `contact`.`url`, `contact`.`thumb` , `contact`.`network`,
-		count( * ) as count
+		ANY_VALUE(`mail`.`id`), ANY_VALUE(`mail`.`uid`), ANY_VALUE(`mail`.`guid`), ANY_VALUE(`mail`.`from-name`),
+		ANY_VALUE(`mail`.`from-photo`), ANY_VALUE(`mail`.`from-url`), ANY_VALUE(`mail`.`contact-id`),
+		ANY_VALUE(`mail`.`convid`), ANY_VALUE(`mail`.`title`), ANY_VALUE(`mail`.`body`), ANY_VALUE(`mail`.`seen`),
+		ANY_VALUE(`mail`.`reply`), ANY_VALUE(`mail`.`replied`), ANY_VALUE(`mail`.`unknown`),
+		ANY_VALUE(`mail`.`uri`), ANY_VALUE(`mail`.`parent-uri`), ANY_VALUE(`mail`.`created`),
+		ANY_VALUE(`contact`.`name`), ANY_VALUE(`contact`.`url`), ANY_VALUE(`contact`.`thumb`), ANY_VALUE(`contact`.`network`),
 		FROM `mail` LEFT JOIN `contact` ON `mail`.`contact-id` = `contact`.`id`
-		WHERE `mail`.`uid` = %d GROUP BY `parent-uri`, `mail`.id ORDER BY `mailcreated` DESC  LIMIT %d , %d ",
+		WHERE `mail`.`uid` = %d GROUP BY `parent-uri` ORDER BY `mailcreated` DESC  LIMIT %d , %d ",
 		intval($user), intval($lstart), intval($lend)
 	);
 }
diff --git a/mod/photos.php b/mod/photos.php
index a24cee2559..8e47829774 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -1240,8 +1240,10 @@ function photos_content(App $a) {
 			$order = 'DESC';
 		}
 
-		$r = q("SELECT `resource-id`, `id`, `filename`, type, max(`scale`) AS `scale`, `desc` FROM `photo` WHERE `uid` = %d AND `album` = '%s'
-			AND `scale` <= 4 $sql_extra GROUP BY `resource-id`, `id` ORDER BY `created` $order LIMIT %d , %d",
+		$r = q("SELECT `resource-id`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`filename`) AS `filename`,
+			ANY_VALUE(`type`) AS `type`, max(`scale`) AS `scale`, ANY_VALUE(`desc`) as `desc`
+			FROM `photo` WHERE `uid` = %d AND `album` = '%s'
+			AND `scale` <= 4 $sql_extra GROUP BY `resource-id` ORDER BY `created` $order LIMIT %d , %d",
 			intval($owner_uid),
 			dbesc($album),
 			intval($a->pager['start']),
diff --git a/mod/videos.php b/mod/videos.php
index ea2e0d4a24..269d537854 100644
--- a/mod/videos.php
+++ b/mod/videos.php
@@ -356,9 +356,11 @@ function videos_content(App $a) {
 		$a->set_pager_itemspage(20);
 	}
 
-	$r = q("SELECT hash, `id`, `filename`, filetype FROM `attach`
+	$r = q("SELECT hash, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`created`) AS `created`,
+		ANY_VALUE(`filename`) AS `filename`, ANY_VALUE(`filetype`) as `filetype`
+		FROM `attach`
 		WHERE `uid` = %d AND filetype LIKE '%%video%%'
-		$sql_extra GROUP BY hash, `id` ORDER BY `created` DESC LIMIT %d , %d",
+		$sql_extra GROUP BY hash ORDER BY `created` DESC LIMIT %d , %d",
 		intval($a->data['user']['uid']),
 		intval($a->pager['start']),
 		intval($a->pager['itemspage'])

From 6be6badd915800582ddeaf5b6f9162623205e868 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 00:45:30 +0200
Subject: [PATCH 09/14] SQL typo mod/message

Mistake in previous commit
---
 mod/message.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mod/message.php b/mod/message.php
index dd13d58be6..d3bd1558cc 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -536,6 +536,7 @@ function get_messages($user, $lstart, $lend) {
 		ANY_VALUE(`mail`.`reply`), ANY_VALUE(`mail`.`replied`), ANY_VALUE(`mail`.`unknown`),
 		ANY_VALUE(`mail`.`uri`), ANY_VALUE(`mail`.`parent-uri`), ANY_VALUE(`mail`.`created`),
 		ANY_VALUE(`contact`.`name`), ANY_VALUE(`contact`.`url`), ANY_VALUE(`contact`.`thumb`), ANY_VALUE(`contact`.`network`),
+		count( * ) as count
 		FROM `mail` LEFT JOIN `contact` ON `mail`.`contact-id` = `contact`.`id`
 		WHERE `mail`.`uid` = %d GROUP BY `parent-uri` ORDER BY `mailcreated` DESC  LIMIT %d , %d ",
 		intval($user), intval($lstart), intval($lend)

From 5007be3cf55d5f4854a11b06811da9e50c256829 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 12:40:32 +0200
Subject: [PATCH 10/14] Use server_info to fallback from ANY_VALUE if needed

---
 include/dba.php | 38 +++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)

diff --git a/include/dba.php b/include/dba.php
index 96df072cfa..665580124d 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -20,6 +20,7 @@ class dba {
 	private $driver;
 	public  $connected = false;
 	public  $error = false;
+	private $_server_info = '';
 
 	function __construct($server, $user, $pass, $db, $install = false) {
 		$a = get_app();
@@ -103,18 +104,20 @@ class dba {
 	 * @return string
 	 */
 	public function server_info() {
-		switch ($this->driver) {
-			case 'pdo':
-				$version = $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
-				break;
-			case 'mysqli':
-				$version = $this->db->server_info;
-				break;
-			case 'mysql':
-				$version = mysql_get_server_info($this->db);
-				break;
+		if ($this->_server_info == '') {
+			switch ($this->driver) {
+				case 'pdo':
+					$this->_server_info = $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
+					break;
+				case 'mysqli':
+					$this->_server_info = $this->db->server_info;
+					break;
+				case 'mysql':
+					$this->_server_info = mysql_get_server_info($this->db);
+					break;
+			}
 		}
-		return $version;
+		return $this->_server_info;
 	}
 
 	/**
@@ -505,11 +508,16 @@ function dbesc($str) {
 }
 
 function any_value_fallback($sql) {
+	global $db;
+	$server_info = $db->server_info();
 	//Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
-	//ANY_VALUE() is available from MySQL 5.7 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
-	//A standard fallback is to use MIN(), or nothing () in old MySQL 5.6-
-	//TODO: Skip this line when we know we are on a platform supporting ANY_VALUE()
-	return str_ireplace('ANY_VALUE(', 'MIN(', $sql);
+	//ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
+	//A standard fallback is to use MIN()
+	if (version_compare($server_info, '5.7.5', '<') ||
+		(stripos($server_info, 'MariaDB') !== false)) {
+		$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
+	}
+	return $sql;
 }
 
 // Function: q($sql,$args);

From 06f374b26b01674707c135843d0df5189a9e57cf Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 14:39:41 +0200
Subject: [PATCH 11/14] Document any_value_fallback()

https://github.com/friendica/friendica/pull/3323#discussion_r111663767
---
 include/dba.php | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/dba.php b/include/dba.php
index 665580124d..4352cde669 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -507,12 +507,20 @@ function dbesc($str) {
 	}
 }
 
+/**
+ * @brief Replaces ANY_VALUE() function by MIN() function,
+ *  if the database server does not support ANY_VALUE().
+ *
+ * Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
+ * ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
+ * A standard fall-back is to use MIN().
+ *
+ * @param string $sql An SQL string without the values
+ * @return string The input SQL string modified if necessary.
+ */
 function any_value_fallback($sql) {
 	global $db;
 	$server_info = $db->server_info();
-	//Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
-	//ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
-	//A standard fallback is to use MIN()
 	if (version_compare($server_info, '5.7.5', '<') ||
 		(stripos($server_info, 'MariaDB') !== false)) {
 		$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);

From 062070058e48c584616493af38d9949eccd9a849 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 17:31:32 +0200
Subject: [PATCH 12/14] Move any_value_fallback() to dba class

https://github.com/friendica/friendica/pull/3323#discussion_r111666245
---
 include/dba.php | 45 ++++++++++++++++++++++-----------------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/include/dba.php b/include/dba.php
index 4352cde669..5066dcd56d 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -477,6 +477,26 @@ class dba {
 			}
 		}
 	}
+
+	/**
+	 * @brief Replaces ANY_VALUE() function by MIN() function,
+	 *  if the database server does not support ANY_VALUE().
+	 *
+	 * Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
+	 * ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
+	 * A standard fall-back is to use MIN().
+	 *
+	 * @param string $sql An SQL string without the values
+	 * @return string The input SQL string modified if necessary.
+	 */
+	public function any_value_fallback($sql) {
+		$server_info = $this->server_info();
+		if (version_compare($server_info, '5.7.5', '<') ||
+			(stripos($server_info, 'MariaDB') !== false)) {
+			$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
+		}
+		return $sql;
+	}
 }
 
 function printable($s) {
@@ -507,27 +527,6 @@ function dbesc($str) {
 	}
 }
 
-/**
- * @brief Replaces ANY_VALUE() function by MIN() function,
- *  if the database server does not support ANY_VALUE().
- *
- * Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
- * ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
- * A standard fall-back is to use MIN().
- *
- * @param string $sql An SQL string without the values
- * @return string The input SQL string modified if necessary.
- */
-function any_value_fallback($sql) {
-	global $db;
-	$server_info = $db->server_info();
-	if (version_compare($server_info, '5.7.5', '<') ||
-		(stripos($server_info, 'MariaDB') !== false)) {
-		$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
-	}
-	return $sql;
-}
-
 // Function: q($sql,$args);
 // Description: execute SQL query with printf style args.
 // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
@@ -538,7 +537,7 @@ function q($sql) {
 	unset($args[0]);
 
 	if ($db && $db->connected) {
-		$sql = any_value_fallback($sql);
+		$sql = $db->any_value_fallback($sql);
 		$stmt = @vsprintf($sql,$args); // Disabled warnings
 		//logger("dba: q: $stmt", LOGGER_ALL);
 		if ($stmt === false)
@@ -575,7 +574,7 @@ function qu($sql) {
 	unset($args[0]);
 
 	if ($db && $db->connected) {
-		$sql = any_value_fallback($sql);
+		$sql = $db->any_value_fallback($sql);
 		$stmt = @vsprintf($sql,$args); // Disabled warnings
 		if ($stmt === false)
 			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);

From 8b3f623d29e7228115441d4824e2893a1585fe15 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 23:42:10 +0200
Subject: [PATCH 13/14] ANY_VALUE in mod/admin

The query was not standard, not deterministic, and was not doing what
its description says. The patch makes it more standard and a bit more
deterministic. The returned protocol type is still undeterministic.
---
 mod/admin.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mod/admin.php b/mod/admin.php
index 2652b33c12..093f7c8012 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -290,7 +290,8 @@ function admin_page_federation(App $a) {
 	foreach ($platforms as $p) {
 		// get a total count for the platform, the name and version of the
 		// highest version and the protocol tpe
-		$c = qu('SELECT COUNT(*) AS `total`, `platform`, `network`, `version` FROM `gserver`
+		$c = qu('SELECT COUNT(*) AS `total`, ANY_VALUE(`platform`),
+				ANY_VALUE(`network`), MAX(`version`) FROM `gserver`
 				WHERE `platform` LIKE "%s" AND `last_contact` >= `last_failure`
 				ORDER BY `version` ASC;', $p);
 		$total = $total + $c[0]['total'];

From d076b39b648748f66b47f168cf3c7602ac2a085d Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 15 Apr 2017 23:48:02 +0200
Subject: [PATCH 14/14] Forgotten AS in mod/admin patch

---
 mod/admin.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mod/admin.php b/mod/admin.php
index 093f7c8012..fb463d31c0 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -290,8 +290,8 @@ function admin_page_federation(App $a) {
 	foreach ($platforms as $p) {
 		// get a total count for the platform, the name and version of the
 		// highest version and the protocol tpe
-		$c = qu('SELECT COUNT(*) AS `total`, ANY_VALUE(`platform`),
-				ANY_VALUE(`network`), MAX(`version`) FROM `gserver`
+		$c = qu('SELECT COUNT(*) AS `total`, ANY_VALUE(`platform`) AS `platform`,
+				ANY_VALUE(`network`) AS `network`, MAX(`version`) AS `version` FROM `gserver`
 				WHERE `platform` LIKE "%s" AND `last_contact` >= `last_failure`
 				ORDER BY `version` ASC;', $p);
 		$total = $total + $c[0]['total'];