summaryrefslogtreecommitdiff
path: root/www/wiki/maintenance/archives/patch-categorylinksindex.sql
diff options
context:
space:
mode:
Diffstat (limited to 'www/wiki/maintenance/archives/patch-categorylinksindex.sql')
-rw-r--r--www/wiki/maintenance/archives/patch-categorylinksindex.sql11
1 files changed, 11 insertions, 0 deletions
diff --git a/www/wiki/maintenance/archives/patch-categorylinksindex.sql b/www/wiki/maintenance/archives/patch-categorylinksindex.sql
new file mode 100644
index 00000000..e2b2c3ac
--- /dev/null
+++ b/www/wiki/maintenance/archives/patch-categorylinksindex.sql
@@ -0,0 +1,11 @@
+--
+-- patch-categorylinksindex.sql
+--
+-- Per task T12280 / https://phabricator.wikimedia.org/T12280
+--
+-- Improve enum continuation performance of the what pages belong to a category query
+--
+
+ALTER TABLE /*$wgDBprefix*/categorylinks
+ DROP INDEX cl_sortkey,
+ ADD INDEX cl_sortkey(cl_to, cl_sortkey, cl_from);