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[DATABASE] Some query improvements

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Make common_sql_weight employ standard SQL functions for the timestamp
difference in seconds.
Also replace UTC_TIMESTAMP in the MariaDB-specific part with CURRENT_TIMESTAMP
as it is the only occurence and GNU social sets UTC as a default timezone.

In a delete_orphan_files.php script simplify the main query considerably.

In clean_profiles.php stop using COUNT as if it is ANY, that is unnecessary
punishment for the database. Instead implement the anti-join with a
left outer join.

In Autocomplete and Activitypub_profile use joins instead of a WHERE OR
anti-pattern for the semi-joins.

In lib/ui/galleryaction.php replace a CROSS JOIN with an INNER JOIN.

In actions/sup.php remove a redundant subquery: WHERE is applied before
grouping either way.
This commit is contained in:
Alexei Sorokin
2020-06-10 16:52:00 +03:00
parent ef17f3ea7d
commit 194976135f
9 changed files with 187 additions and 140 deletions
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47
scripts/delete_orphan_files.php
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@@ -1,21 +1,23 @@
#!/usr/bin/env php
<?php
/*
* StatusNet - a distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* @copyright 2008, 2009 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
define('INSTALLDIR', dirname(__DIR__));
@@ -43,12 +45,13 @@ require_once INSTALLDIR.'/scripts/commandline.inc';
print "Finding File entries that are not related to a Notice (or the notice has been deleted)...";
$file = new File();
$sql = 'SELECT file.* FROM file'.
' LEFT JOIN file_to_post ON file_to_post.file_id=file.id'.
' WHERE'.
' NOT EXISTS (SELECT file_to_post.file_id FROM file_to_post WHERE file.id=file_to_post.file_id)'.
' OR NOT EXISTS (SELECT notice.id FROM notice WHERE notice.id=file_to_post.post_id)'.
' GROUP BY file.id;';
$sql = <<<'END'
SELECT file.*
FROM file_to_post
INNER JOIN notice ON file_to_post.post_id = notice.id
RIGHT JOIN file ON file_to_post.file_id = file.id
WHERE file_to_post.file_id IS NULL;
END;
if ($file->query($sql) !== false) {
print " {$file->N} found.\n";