Merge host.loc:/home/uchum/work/mysql-5.1

into  host.loc:/home/uchum/work/5.1-opt


client/mysqltest.c:
  Auto merged
mysql-test/r/information_schema.result:
  Auto merged
mysql-test/t/information_schema.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged

1 files changed, 39 insertions, 87 deletions

diff --git a/mysql-test/t/subselect_notembedded.test b/mysql-test/t/subselect_notembedded.test
index 040c90452b9..2f1cc261f56 100644
--- a/mysql-test/t/subselect_notembedded.test
+++ b/mysql-test/t/subselect_notembedded.test
@@ -14,92 +14,44 @@ purge master logs before adddate(current_timestamp(), interval -4 day);
 create table t1(a int,b int,key(a),key(b));
 insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5),
   (6,7),(7,4),(5,3);
-# test for the stack overflow bug
-select sum(a),a from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1
-  )group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1) 
-group by a;
---replace_regex /overrun.*$/overrun detected/
---error 1436
-select sum(a),a from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1) 
-group by a;
-# test for the memory consumption & subquery slowness bug
-explain select sum(a),a from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 
-  )group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1) 
-group by a;
---replace_regex /overrun.*$/overrun detected/
---error 1436
-explain select sum(a),a from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 where a> ( select sum(a) from t1 where a> (
-  select sum(a) from t1 
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1
-  )group by b limit 1)group by b limit 1)group by b limit 1) 
-group by a;
-drop table t1;
 
+let $nesting= 26;
+let $should_work_nesting= 5;
+let $start= select sum(a),a from t1 where a> ( select sum(a) from t1 ;
+let $end= )group by a ;
+let $start_app= where a> ( select sum(a) from t1 ;
+let $end_pre= )group by b limit 1 ;
+
+--disable_result_log
+--disable_query_log
+# At least 4 level nesting should work without errors
+while ($should_work_nesting)
+{
+--echo $should_work_nesting
+  eval $start $end;
+  eval explain $start $end;
+  let $start= $start
+  $start_app;
+  let $end= $end_pre
+  $end;
+  dec $should_work_nesting;
+}
+# Other may fail with the 'stack overrun error'
+while ($nesting)
+{
+--echo $nesting
+--error 0,1436
+  eval $start $end;
+--error 0,1436
+  eval explain $start $end;
+  let $start= $start
+  $start_app;
+  let $end= $end_pre
+  $end;
+  dec $nesting;
+}
+--enable_result_log
+--enable_query_log
+drop table t1;
 
+--echo End of 5.1 tests