From 74abdec18b15575c6fc69fa558870d44aea42986 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Thu, 19 May 2011 11:35:56 +1200
Subject: [PATCH] BUGFIX Allow omitting FROM clause in sqlQueryToString()

---
 code/PostgreSQLDatabase.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/code/PostgreSQLDatabase.php b/code/PostgreSQLDatabase.php
index 744f6e3..5f17539 100755
--- a/code/PostgreSQLDatabase.php
+++ b/code/PostgreSQLDatabase.php
@@ -1554,15 +1554,13 @@ class PostgreSQLDatabase extends SS_Database {
 	 * helper function in Database?
 	 */
 	public function sqlQueryToString(SQLQuery $sqlQuery) {
-		if (!$sqlQuery->from) return '';
 		$distinct = $sqlQuery->distinct ? "DISTINCT " : "";
 		if($sqlQuery->delete) {
 			$text = "DELETE ";
 		} else if($sqlQuery->select) {
 			$text = "SELECT $distinct" . implode(", ", $sqlQuery->select);
 		}
-		$text .= " FROM " . implode(" ", $sqlQuery->from);
-
+		if($sqlQuery->from) $text .= " FROM " . implode(" ", $sqlQuery->from);
 		if($sqlQuery->where) $text .= " WHERE (" . $sqlQuery->getFilter(). ")";
 		if($sqlQuery->groupby) $text .= " GROUP BY " . implode(", ", $sqlQuery->groupby);
 		if($sqlQuery->having) $text .= " HAVING ( " . implode(" ) AND ( ", $sqlQuery->having) . " )";