L-electron-Rare/moodle
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MDL-68647 forum: Add index over posts privatereplyto field

Browse Source 
This is to further improve the performance of searching of posts related
to the given user. Once both userid and privatereplyto are indexed, the
query planner can use the merged index to search for posts records.
This commit is contained in:
David Mudrák
2020-07-21 11:45:56 +02:00
parent 9cfcb4bf8a
commit e271e28e78
3 changed files with 15 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mod/forum/db/install.xml
+2 -1
View File
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="mod/forum/db" VERSION="20191001" COMMENT="XMLDB file for Moodle mod/forum"
<XMLDB PATH="mod/forum/db" VERSION="20200508" COMMENT="XMLDB file for Moodle mod/forum"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
>
@@ -99,6 +99,7 @@
<INDEX NAME="userid" UNIQUE="false" FIELDS="userid"/>
<INDEX NAME="created" UNIQUE="false" FIELDS="created"/>
<INDEX NAME="mailed" UNIQUE="false" FIELDS="mailed"/>
<INDEX NAME="privatereplyto" UNIQUE="false" FIELDS="privatereplyto" COMMENT="The field is used in certain queries (such as privacy requests) to search for private replies to the user."/>
</INDEXES>
</TABLE>
<TABLE NAME="forum_queue" COMMENT="For keeping track of posts that will be mailed in digest form">
mod/forum/db/upgrade.php
+12
View File
@@ -294,5 +294,17 @@ function xmldb_forum_upgrade($oldversion) {
upgrade_mod_savepoint(true, 2019111801, 'forum');
}
if ($oldversion < 2019111802) {
// Add index privatereplyto (not unique) to the forum_posts table.
$table = new xmldb_table('forum_posts');
$index = new xmldb_index('privatereplyto', XMLDB_INDEX_NOTUNIQUE, ['privatereplyto']);
if (!$dbman->index_exists($table, $index)) {
$dbman->add_index($table, $index);
}
upgrade_mod_savepoint(true, 2019111802, 'forum');
}
return true;
}
mod/forum/version.php
+1 -1
View File
@@ -24,6 +24,6 @@
defined('MOODLE_INTERNAL') || die();
$plugin->version = 2019111801; // The current module version (Date: YYYYMMDDXX)
$plugin->version = 2019111802; // The current module version (Date: YYYYMMDDXX)
$plugin->requires = 2019111200; // Requires this Moodle version
$plugin->component = 'mod_forum'; // Full name of the plugin (used for diagnostics)