From 163f1accd9e80664f8f62c7d86487417df39caf4 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sun, 27 Aug 2006 09:33:31 +0000
Subject: - Patch #42463: performance improvement: add index on the source
 field of the locale table.

---
 modules/system/system.install | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'modules/system')

diff --git a/modules/system/system.install b/modules/system/system.install
index b7fd920dd..ac8aebaa0 100644
--- a/modules/system/system.install
+++ b/modules/system/system.install
@@ -3090,6 +3090,23 @@ function system_update_1007() {
   return $ret;
 }
 
+/**
+ * Performance update for queries that are related to the locale.module
+ */
+function system_update_1008() {
+  $ret = array();
+  switch ($GLOBALS['db_type']) {
+    case 'mysql':
+    case 'mysqli':
+      $ret[] = update_sql('ALTER TABLE {locales_source} ADD KEY source (source(30))');
+      break;
+    case 'pgsql':
+      $ret[] = update_sql("CREATE INDEX {locales_source}_source_idx on {locales_source} (source)");
+  }
+
+  return $ret;
+}
+
 /**
  * @} End of "defgroup updates-4.7-to-x.x"
  * The next series of updates should start at 2000.
-- 
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