Fixed vargrind problems in check_join_cache_usage().

Merged the patch for bug 697557. Adjusted the results.

1 files changed, 22 insertions, 0 deletions

diff --git a/mysql-test/t/join_cache.test b/mysql-test/t/join_cache.test
index ab9e10536e1..9892d2cf5be 100644
--- a/mysql-test/t/join_cache.test
+++ b/mysql-test/t/join_cache.test
@@ -2931,6 +2931,28 @@ SET SESSION join_cache_level = DEFAULT;
 
 DROP TABLE t1,t2;
   
+--echo #
+--echo # Bug #697557: hash join on a varchar field 
+--echo #
+
+CREATE TABLE t1 ( f1 varchar(10) , f2 int(11) , KEY (f1));
+INSERT INTO t1 VALUES ('r',1), ('m',2);
+
+CREATE TABLE t2 ( f1 varchar(10) , f2 int(11) , KEY (f1));
+INSERT INTO t2 VALUES
+  ('hgtofubn',1), ('GDOXZ',91), ('n',2), ('fggxgalh',88),
+  ('hgtofu',1), ('GDO',101), ('n',3), ('fggxga',55),
+  ('hgtofu',3), ('GDO',33), ('nn',3), ('fggxgarrr',77);
+
+SET SESSION join_cache_level=3;
 
+EXPLAIN 
+SELECT * FROM t1,t2 WHERE t2.f1 = t1.f1;
+SELECT * FROM t1,t2 WHERE t2.f1 = t1.f1;
+
+SET SESSION join_cache_level = DEFAULT;
+
+DROP TABLE t1,t2;
+  
 # this must be the last command in the file
 set @@optimizer_switch=@save_optimizer_switch;