From a582fcff5237e93aa3d61fc639c4c766e877ccac Mon Sep 17 00:00:00 2001
From: Ivan Kohler <ivan@freeside.biz>
Date: Thu, 20 Nov 2014 11:44:58 -0800
Subject: [PATCH] optimize

---
 FS/FS/TicketSystem/RT_External.pm | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/FS/FS/TicketSystem/RT_External.pm b/FS/FS/TicketSystem/RT_External.pm
index c2aac2db7..9f07732c7 100644
--- a/FS/FS/TicketSystem/RT_External.pm
+++ b/FS/FS/TicketSystem/RT_External.pm
@@ -175,12 +175,11 @@ sub _from_customer {
 
     } else {
 
-      $where =
-               "AND 0 = ( SELECT COUNT(*) FROM ObjectCustomFieldValues
-                           WHERE ObjectId    = Tickets.id
-                             AND ObjectType  = 'RT::Ticket'
-                             AND $customfield_sql
-                        )
+      $where = " AND NOT EXISTS ( SELECT 1 FROM ObjectCustomFieldValues
+                                    WHERE ObjectId    = Tickets.id
+                                      AND ObjectType  = 'RT::Ticket'
+                                      AND $customfield_sql
+                                )
                ";
     }
 
-- 
2.11.0