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Add a unique key to guarantee that course,sortorder is unique. Allows fix_course_sortorder and ordering operations to be much faster. (martinlanghoff)

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[email protected]/moodle--eduforge--1.3.3--patch-231
[email protected]/moodle--eduforge--1.3.3--patch-236
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mjollnir_
2004-11-17 07:42:36 +00:00
parent bd2c2596c2
commit 3ebf865805
4 changed files with 54 additions and 4 deletions
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lib/db/postgres7.php
+17
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@@ -619,6 +619,23 @@ function main_upgrade($oldversion=0) {
modify_database('','CREATE INDEX prefix_user_coursecreators_userid_idx ON prefix_user_coursecreators (userid);');
}
if ($oldversion < 2004083128) { // make new indexes on user table.
fix_course_sortorder(0,0,1);
modify_database('', "DROP INDEX prefix_course_category_idx;");
modify_database('', "CREATE UNIQUE INDEX prefix_course_category_sortorder_uk ON prefix_course(category,sortorder)");
modify_database("","CREATE INDEX prefix_user_deleted_idx ON prefix_user (deleted)");
modify_database("","CREATE INDEX prefix_user_confirmed_idx ON prefix_user (confirmed)");
modify_database("","CREATE INDEX prefix_user_firstname_idx ON prefix_user (firstname)");
modify_database("","CREATE INDEX prefix_user_lastname_idx ON prefix_user (lastname)");
modify_database("","CREATE INDEX prefix_user_city_idx ON prefix_user (city)");
modify_database("","CREATE INDEX prefix_user_country_idx ON prefix_user (country)");
modify_database("","CREATE INDEX prefix_user_lastaccess_idx ON prefix_user (lastaccess)");
}
if ($oldversion < 2004083128) { // one more index for email (for sorting)
modify_database('','CREATE INDEX prefix_user_email_idx ON prefix_user (email);');
}
return $result;
}