diff -Naurb mysql-5.0.77_original/mysql-test/r/rpl_user_variables.result mysql-5.0.77_patched/mysql-test/r/rpl_user_variables.result
--- mysql-5.0.77_original/mysql-test/r/rpl_user_variables.result	2009-01-30 09:38:23.000000000 +1100
+++ mysql-5.0.77_patched/mysql-test/r/rpl_user_variables.result	2010-03-11 18:36:04.000000000 +1100
@@ -79,32 +79,32 @@
 show binlog events from 98;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
 slave-bin.000001	#	Query	1	#	use `test`; create table t1(n char(30))
-slave-bin.000001	#	User var	2	#	@`i1`=12345678901234
-slave-bin.000001	#	User var	2	#	@`i2`=-12345678901234
-slave-bin.000001	#	User var	2	#	@`i3`=0
-slave-bin.000001	#	User var	2	#	@`i4`=-1
+slave-bin.000001	#	User var	1	#	@`i1`=12345678901234
+slave-bin.000001	#	User var	1	#	@`i2`=-12345678901234
+slave-bin.000001	#	User var	1	#	@`i3`=0
+slave-bin.000001	#	User var	1	#	@`i4`=-1
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@i1), (@i2), (@i3), (@i4)
-slave-bin.000001	#	User var	2	#	@`r1`=12.5
-slave-bin.000001	#	User var	2	#	@`r2`=-12.5
+slave-bin.000001	#	User var	1	#	@`r1`=12.5
+slave-bin.000001	#	User var	1	#	@`r2`=-12.5
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@r1), (@r2)
-slave-bin.000001	#	User var	2	#	@`s1`=_latin1 0x5468697320697320612074657374 COLLATE latin1_swedish_ci
-slave-bin.000001	#	User var	2	#	@`s2`=_latin1 "" COLLATE latin1_swedish_ci
-slave-bin.000001	#	User var	2	#	@`s3`=_latin1 0x61626327646566 COLLATE latin1_swedish_ci
-slave-bin.000001	#	User var	2	#	@`s4`=_latin1 0x6162635C646566 COLLATE latin1_swedish_ci
-slave-bin.000001	#	User var	2	#	@`s5`=_latin1 0x61626327646566 COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`s1`=_latin1 0x5468697320697320612074657374 COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`s2`=_latin1 "" COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`s3`=_latin1 0x61626327646566 COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`s4`=_latin1 0x6162635C646566 COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`s5`=_latin1 0x61626327646566 COLLATE latin1_swedish_ci
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@s1), (@s2), (@s3), (@s4), (@s5)
-slave-bin.000001	#	User var	2	#	@`n1`=NULL
+slave-bin.000001	#	User var	1	#	@`n1`=NULL
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@n1)
-slave-bin.000001	#	User var	2	#	@`n2`=NULL
+slave-bin.000001	#	User var	1	#	@`n2`=NULL
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@n2)
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@a:=0), (@a:=@a+1), (@a:=@a+1)
-slave-bin.000001	#	User var	2	#	@`a`=2
+slave-bin.000001	#	User var	1	#	@`a`=2
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@a+(@b:=@a+1))
-slave-bin.000001	#	User var	2	#	@`q`=_latin1 0x616263 COLLATE latin1_swedish_ci
+slave-bin.000001	#	User var	1	#	@`q`=_latin1 0x616263 COLLATE latin1_swedish_ci
 slave-bin.000001	#	Query	1	#	use `test`; insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'))
-slave-bin.000001	#	User var	2	#	@`a`=5
+slave-bin.000001	#	User var	1	#	@`a`=5
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@a),(@a)
-slave-bin.000001	#	User var	2	#	@`a`=NULL
+slave-bin.000001	#	User var	1	#	@`a`=NULL
 slave-bin.000001	#	Query	1	#	use `test`; insert into t1 values (@a),(@a),(@a*5)
 insert into t1 select * FROM (select @var1 union  select @var2) AS t2;
 drop table t1;
@@ -268,7 +268,7 @@
 show binlog events from 98;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
 slave-bin.000001	98	Query	1	184	use `test`; create table t1 (a int)
-slave-bin.000001	184	User var	2	226	@`a`=98
+slave-bin.000001	184	User var	1	226	@`a`=98
 slave-bin.000001	226	Query	1	320	use `test`; insert into t1 values (@a),(98)
 slave-bin.000001	320	Query	1	409	use `test`; insert into t1 values (99)
 slave-bin.000001	409	Query	1	507	use `test`; insert into t1 select 100 limit 100
diff -Naurb mysql-5.0.77_original/sql/log_event.h mysql-5.0.77_patched/sql/log_event.h
--- mysql-5.0.77_original/sql/log_event.h	2009-01-30 08:45:28.000000000 +1100
+++ mysql-5.0.77_patched/sql/log_event.h	2010-03-11 16:18:18.000000000 +1100
@@ -1281,7 +1281,7 @@
   User_var_log_event(THD* thd_arg, char *name_arg, uint name_len_arg,
                      char *val_arg, ulong val_len_arg, Item_result type_arg,
 		     uint charset_number_arg)
-    :Log_event(), name(name_arg), name_len(name_len_arg), val(val_arg),
+    :Log_event(thd_arg,0,0), name(name_arg), name_len(name_len_arg), val(val_arg),
     val_len(val_len_arg), type(type_arg), charset_number(charset_number_arg)
     { is_null= !val; }
   void pack_info(Protocol* protocol);