From 0ce61c841fc33fccf74ff32b83183eb1cdc7dff8 Mon Sep 17 00:00:00 2001
From: stronk7 <stronk7>
Date: Thu, 21 Sep 2006 07:44:56 +0000
Subject: [PATCH] Force ANSI NULLs under mssql. It's not critical to work but
 it avoids some problems when changing nullability of fields in the future.

---
 lib/dmllib.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/dmllib.php b/lib/dmllib.php
index 1e84bf062d..82509e5603 100644
--- a/lib/dmllib.php
+++ b/lib/dmllib.php
@@ -1447,6 +1447,9 @@ function configure_dbconnection() {
         /// No need to set charset. It must be specified in the driver conf
         /// Allow quoted identifiers
             $db->Execute('SET QUOTED_IDENTIFIER ON');
+        /// Force ANSI nulls so the NULL check was done by IS NULL and NOT IS NULL
+        /// instead of equal(=) and distinct(<>) simbols
+            $db->Execute('SET ANSI_NULLS ON');
         /// Enable sybase quotes, so addslashes and stripslashes will use "'"
             ini_set('magic_quotes_sybase', '1');
         /// NOTE: Not 100% useful because GPC has been addslashed with the setting off
-- 
2.39.5