diff options
Diffstat (limited to 'mysql-test/r/select_debug.result')
-rw-r--r-- | mysql-test/r/select_debug.result | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mysql-test/r/select_debug.result b/mysql-test/r/select_debug.result new file mode 100644 index 00000000000..1eb8a0754fa --- /dev/null +++ b/mysql-test/r/select_debug.result @@ -0,0 +1,18 @@ +# +# Bug #725050: print keyuse info when hash join is used +# +create table t1 (a int, b int); +insert into t1 values (2,2), (1,1); +create table t2 (a int); +insert into t2 values (2), (3); +set session join_cache_level=3; +set @@debug = 'd:t:O,/tmp/trace.out'; +explain select t1.b from t1,t2 where t1.b=t2.a; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t2 hash_ALL NULL #hash#$hj 5 test.t1.b 2 Using where; Using join buffer (flat, BNLH join) +select t1.b from t1,t2 where t1.b=t2.a; +b +2 +set session join_cache_level=default; +drop table t1,t2; |