Index: /trunk/ippTools/src/warptool.c
===================================================================
--- /trunk/ippTools/src/warptool.c	(revision 12002)
+++ /trunk/ippTools/src/warptool.c	(revision 12003)
@@ -938,4 +938,10 @@
 
 #if MYSQL5
+    // XXX at MySQL 4.1.21 (probably all of 4.1.x) chokes and dies on this
+    // statement as it thinks it is trying to select from the table being
+    // updated. The 4.1 manual says that nested sub-queries are explicited
+    // allowed to do this with update statements as a temporary table is
+    // created so that you are not actually selecting from the table you are
+    // modifying.
     char *query =
         "UPDATE p4Run\n"