From ddd5acf9004b8094e5c6110fc940eb7bdc4c69ac Mon Sep 17 00:00:00 2001
From: Tim Starling <tstarling@users.mediawiki.org>
Date: Wed, 6 Jan 2010 04:05:49 +0000
Subject: [PATCH] Don't count unions of bracketed selects as being write
 queries

---
 includes/db/Database.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/db/Database.php b/includes/db/Database.php
index 36f34a3035..b1b0441b7d 100644
--- a/includes/db/Database.php
+++ b/includes/db/Database.php
@@ -422,7 +422,7 @@ abstract class DatabaseBase {
 	 * Should return true if unsure.
 	 */
 	function isWriteQuery( $sql ) {
-		return !preg_match( '/^(?:SELECT|BEGIN|COMMIT|SET|SHOW)\b/i', $sql );
+		return !preg_match( '/^(?:SELECT|BEGIN|COMMIT|SET|SHOW|\(SELECT)\b/i', $sql );
 	}
 
 	/**
@@ -2853,4 +2853,4 @@ class LikeMatch {
 	public function toString() {
 		return $this->str;
 	}
-}
\ No newline at end of file
+}
-- 
2.20.1