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author | Michael Widenius <monty@askmonty.org> | 2010-12-06 10:25:44 +0200 |
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committer | Michael Widenius <monty@askmonty.org> | 2010-12-06 10:25:44 +0200 |
commit | b7b25dc666a8d331d16231f9fb658af8c05ac694 (patch) | |
tree | 0c7798c2d187db0da7837a70f306a789afc16521 /mysql-test/r/join_outer.result | |
parent | ab5e4eefd5d25c6e0755c2460dbb433a7a9e913b (diff) | |
parent | b3c72b9a02e570a4a66ca0a64e94fe1116976c85 (diff) | |
download | mariadb-git-b7b25dc666a8d331d16231f9fb658af8c05ac694.tar.gz |
Merge with 5.1-release.
- Fixed problem with oqgraph and 'make dist'
Note that after this merge we have a problem show in join_outer where we examine too many rows in one specific case (related to BUG#57024).
This will be fixed when mwl#128 is merged into 5.3.
Diffstat (limited to 'mysql-test/r/join_outer.result')
-rw-r--r-- | mysql-test/r/join_outer.result | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result index 6d867f96034..7b950a7183f 100644 --- a/mysql-test/r/join_outer.result +++ b/mysql-test/r/join_outer.result @@ -1449,4 +1449,92 @@ group by t2.pk; pk t 2001 3001 drop table t1,t2,t3,t4; +# +# Bug#57024: Poor performance when conjunctive condition over the outer +# table is used in the on condition of an outer join +# +create table t1 (a int); +insert into t1 values (NULL), (NULL), (NULL), (NULL); +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 select * from t1; +insert into t1 values (4), (2), (1), (3); +create table t2 like t1; +insert into t2 select if(t1.a is null, 10, t1.a) from t1; +create table t3 (a int, b int, index idx(a)); +insert into t3 values (1, 100), (3, 301), (4, 402), (1, 102), (1, 101); +analyze table t1,t2,t3; +Table Op Msg_type Msg_text +test.t1 analyze status OK +test.t2 analyze status OK +test.t3 analyze status OK +flush status; +select sum(t3.b) from t1 left join t3 on t3.a=t1.a and t1.a is not null; +sum(t3.b) +1006 +show status like "handler_read%"; +Variable_name Value +Handler_read_first 0 +Handler_read_key 4 +Handler_read_next 5 +Handler_read_prev 0 +Handler_read_rnd 0 +Handler_read_rnd_next 1048581 +flush status; +select sum(t3.b) from t2 left join t3 on t3.a=t2.a and t2.a <> 10; +sum(t3.b) +1006 +show status like "handler_read%"; +Variable_name Value +Handler_read_first 0 +Handler_read_key 1048580 +Handler_read_next 5 +Handler_read_prev 0 +Handler_read_rnd 0 +Handler_read_rnd_next 1048581 +drop table t1,t2,t3; +# Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field +# +CREATE TABLE t1 (f1 INT NOT NULL, PRIMARY KEY (f1)); +CREATE TABLE t2 (f1 INT NOT NULL, f2 INT NOT NULL, PRIMARY KEY (f1, f2)); +INSERT INTO t1 VALUES (4); +INSERT INTO t2 VALUES (3, 3); +INSERT INTO t2 VALUES (7, 7); +EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1 +WHERE t1.f1 = 4 +GROUP BY t2.f1, t2.f2; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system PRIMARY NULL NULL NULL 1 Using temporary; Using filesort +1 SIMPLE t2 ref PRIMARY PRIMARY 4 const 1 Using index +SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1 +WHERE t1.f1 = 4 +GROUP BY t2.f1, t2.f2; +f1 f1 f2 +4 NULL NULL +EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1 +WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL +GROUP BY t2.f1, t2.f2; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system PRIMARY NULL NULL NULL 1 Using filesort +1 SIMPLE t2 ref PRIMARY PRIMARY 4 const 1 Using where; Using index +SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1 +WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL +GROUP BY t2.f1, t2.f2; +f1 f1 f2 +DROP TABLE t1,t2; End of 5.1 tests |