From d6fb70098fdb8c7bec7df823d8187f7e7f0a8624 Mon Sep 17 00:00:00 2001
From: nacin <nacin@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Mon, 9 Jan 2012 15:55:30 +0000
Subject: [PATCH] Prefix table name against the post_parent field in
 _edit_attachments_query_helper() to avoid ambiguous queries. props benbalter.
 fixes #19779.

git-svn-id: http://svn.automattic.com/wordpress/trunk@19720 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/post.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wp-admin/includes/post.php b/wp-admin/includes/post.php
index 0d22441b2..d68285c98 100644
--- a/wp-admin/includes/post.php
+++ b/wp-admin/includes/post.php
@@ -973,7 +973,8 @@ function wp_edit_attachments_query( $q = false ) {
 }
 
 function _edit_attachments_query_helper($where) {
-	return $where .= ' AND post_parent < 1';
+	global $wpdb;
+	return $where .= " AND {$wpdb->posts}.post_parent < 1";
 }
 
 /**