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MDL-33617 add new index to improve perf of enrol related role_assignments

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This commit is contained in:
Petr Škoda
2012-07-06 08:08:45 +02:00
parent 2cbdaa77ea
commit 79a471435b
3 changed files with 18 additions and 2 deletions
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lib/db/install.xml
+2 -1
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@@ -1130,7 +1130,8 @@
<INDEXES>
<INDEX NAME="sortorder" UNIQUE="false" FIELDS="sortorder" NEXT="rolecontext"/>
<INDEX NAME="rolecontext" UNIQUE="false" FIELDS="roleid, contextid" COMMENT="Index on roleid and contextid" PREVIOUS="sortorder" NEXT="usercontextrole"/>
<INDEX NAME="usercontextrole" UNIQUE="false" FIELDS="userid, contextid, roleid" COMMENT="Index on userid, contextid and roleid" PREVIOUS="rolecontext"/>
<INDEX NAME="usercontextrole" UNIQUE="false" FIELDS="userid, contextid, roleid" COMMENT="Index on userid, contextid and roleid" PREVIOUS="rolecontext" NEXT="component-itemid-userid"/>
<INDEX NAME="component-itemid-userid" UNIQUE="false" FIELDS="component, itemid, userid" PREVIOUS="usercontextrole"/>
</INDEXES>
</TABLE>
<TABLE NAME="role_capabilities" COMMENT="permission has to be signed, overriding a capability for a particular role in a particular context" PREVIOUS="role_assignments" NEXT="role_names">
lib/db/upgrade.php
+15
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@@ -899,6 +899,21 @@ function xmldb_main_upgrade($oldversion) {
upgrade_main_savepoint(true, 2012062500.02);
}
if ($oldversion < 2012062500.04) {
// Define index component-itemid-userid (not unique) to be added to role_assignments
$table = new xmldb_table('role_assignments');
$index = new xmldb_index('component-itemid-userid', XMLDB_INDEX_NOTUNIQUE, array('component', 'itemid', 'userid'));
// Conditionally launch add index component-itemid-userid
if (!$dbman->index_exists($table, $index)) {
$dbman->add_index($table, $index);
}
// Main savepoint reached
upgrade_main_savepoint(true, 2012062500.04);
}
return true;
}
version.php
+1 -1
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@@ -30,7 +30,7 @@
defined('MOODLE_INTERNAL') || die();
$version = 2012062500.03; // YYYYMMDD = weekly release date of this DEV branch
$version = 2012062500.04; // YYYYMMDD = weekly release date of this DEV branch
// RR = release increments - 00 in DEV branches
// .XX = incremental changes