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#
# Check that firstmatch works with HASH
#
create table t1 (a int, b int);
insert into t1 select seq, seq from seq_1_to_10;
create table t2 (a int, b int);
insert into t2 select A.seq,A.seq from seq_1_to_10 A, seq_1_to_10 B;
set @save_join_cache_level=@@join_cache_level;
set join_cache_level=6;
explain select * from t1 where t1.a in (select t2.a from t2 where t1.b=t2.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where
1 PRIMARY t2 hash_ALL NULL #hash#$hj 10 test.t1.a,test.t1.b 100 Using where; FirstMatch(t1); Using join buffer (flat, BNLH join)
select * from t1 where t1.a in (select t2.a from t2 where t1.b=t2.b);
a b
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set @@join_cache_level=@save_join_cache_level;
drop table t1,t2;
#
# End of 11.0 tests
#
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