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author | Igor Babaev <igor@askmonty.org> | 2012-01-28 01:12:45 -0800 |
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committer | Igor Babaev <igor@askmonty.org> | 2012-01-28 01:12:45 -0800 |
commit | 5ca1dd8f0b22d6b5aea06c9ad32481498cb99d6e (patch) | |
tree | 992f436bebfdbf5e8bd91ae6b783d70da0501ca7 /mysql-test | |
parent | d25f6bb3eb061ecb9f03529aeafb88f8b10cdfb6 (diff) | |
download | mariadb-git-5ca1dd8f0b22d6b5aea06c9ad32481498cb99d6e.tar.gz |
Fixed LP bug #922971.
Applied the fix for bug #12546542 from the mysql-5.6 code line:
JOIN_CACHE::join_records forgot to reset JOIN_TAB::first_unmatched
in some cases.
Diffstat (limited to 'mysql-test')
-rw-r--r-- | mysql-test/r/join_cache.result | 48 | ||||
-rw-r--r-- | mysql-test/t/join_cache.test | 42 |
2 files changed, 90 insertions, 0 deletions
diff --git a/mysql-test/r/join_cache.result b/mysql-test/r/join_cache.result index db869ba434a..11114a032f9 100644 --- a/mysql-test/r/join_cache.result +++ b/mysql-test/r/join_cache.result @@ -5486,4 +5486,52 @@ i set join_cache_level = default; set optimizer_switch=@tmp_optimizer_switch; DROP TABLE t1,t2,t3; +# +# Bug #12546542: missing row with semijoin=off + join cache +# (LP bug #922971) +# +CREATE TABLE t1 (a varchar(1024)); +INSERT INTO t1 VALUES ('v'), ('we'); +CREATE TABLE t2 ( +a varchar(1024) CHARACTER SET utf8 DEFAULT NULL, b int, c int +); +INSERT INTO t2 VALUES ('we',4,NULL), ('v',1305673728,6); +CREATE TABLE t3 (b int, c int); +INSERT INTO t3 VALUES (4,4); +set @tmp_optimizer_switch=@@optimizer_switch; +set optimizer_switch='semijoin=off'; +set optimizer_switch='materialization=off'; +set join_cache_level=0; +EXPLAIN +SELECT * FROM t1 +WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b +WHERE t2.c < 10 OR t3.c > 1); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using where +SELECT * FROM t1 +WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b +WHERE t2.c < 10 OR t3.c > 1); +a +v +we +set join_cache_level=2; +EXPLAIN +SELECT * FROM t1 +WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b +WHERE t2.c < 10 OR t3.c > 1); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join) +SELECT * FROM t1 +WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b +WHERE t2.c < 10 OR t3.c > 1); +a +v +we +set join_cache_level = default; +set optimizer_switch=@tmp_optimizer_switch; +DROP TABLE t1,t2,t3; set @@optimizer_switch=@save_optimizer_switch; diff --git a/mysql-test/t/join_cache.test b/mysql-test/t/join_cache.test index cc1941e16b9..8a61c00b7d4 100644 --- a/mysql-test/t/join_cache.test +++ b/mysql-test/t/join_cache.test @@ -3505,5 +3505,47 @@ set optimizer_switch=@tmp_optimizer_switch; DROP TABLE t1,t2,t3; +--echo # +--echo # Bug #12546542: missing row with semijoin=off + join cache +--echo # (LP bug #922971) +--echo # + +CREATE TABLE t1 (a varchar(1024)); +INSERT INTO t1 VALUES ('v'), ('we'); +CREATE TABLE t2 ( + a varchar(1024) CHARACTER SET utf8 DEFAULT NULL, b int, c int +); +INSERT INTO t2 VALUES ('we',4,NULL), ('v',1305673728,6); +CREATE TABLE t3 (b int, c int); +INSERT INTO t3 VALUES (4,4); + +set @tmp_optimizer_switch=@@optimizer_switch; +set optimizer_switch='semijoin=off'; +set optimizer_switch='materialization=off'; + +set join_cache_level=0; +EXPLAIN +SELECT * FROM t1 + WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b + WHERE t2.c < 10 OR t3.c > 1); + +SELECT * FROM t1 + WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b + WHERE t2.c < 10 OR t3.c > 1); + +set join_cache_level=2; +EXPLAIN +SELECT * FROM t1 + WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b + WHERE t2.c < 10 OR t3.c > 1); +SELECT * FROM t1 + WHERE a IN (SELECT t2.a FROM t2 LEFT JOIN t3 ON t2.b = t3.b + WHERE t2.c < 10 OR t3.c > 1); + +set join_cache_level = default; +set optimizer_switch=@tmp_optimizer_switch; + +DROP TABLE t1,t2,t3; + # this must be the last command in the file set @@optimizer_switch=@save_optimizer_switch; |