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120 lines
3.4 KiB
Text
120 lines
3.4 KiB
Text
#
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# Run subselect_sj2.test with BKA enabled
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#
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set @save_optimizer_switch_jcl6=@@optimizer_switch;
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set @@optimizer_switch='optimize_join_buffer_size=on';
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set @@optimizer_switch='semijoin_with_cache=on';
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set @@optimizer_switch='outer_join_with_cache=on';
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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set join_cache_level=6;
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show variables like 'join_cache_level';
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set @optimizer_switch_for_subselect_sj2_test=@@optimizer_switch;
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set @join_cache_level_for_subselect_sj2_test=@@join_cache_level;
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--source subselect_sj2.test
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set @innodb_stats_persistent_save= @@innodb_stats_persistent;
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set @innodb_stats_persistent_sample_pages_save=
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@@innodb_stats_persistent_sample_pages;
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set global innodb_stats_persistent= 1;
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set global innodb_stats_persistent_sample_pages=100;
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--echo #
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--echo # Bug #898073: potential incremental join cache for semijoin
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--echo #
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CREATE TABLE t1 (a int, b varchar(1), KEY (b,a));
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INSERT INTO t1 VALUES (0,'x'), (5,'r');
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CREATE TABLE t2 (a int) ENGINE=InnoDB;
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INSERT INTO t2 VALUES (8);
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CREATE TABLE t3 (b varchar(1), c varchar(1)) ENGINE=InnoDB;
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INSERT INTO t3 VALUES ('x','x');
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CREATE TABLE t4 (a int NOT NULL, b varchar(1)) ENGINE=InnoDB;
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INSERT INTO t4 VALUES (20,'r'), (10,'x');
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set @tmp_optimizer_switch=@@optimizer_switch;
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SET SESSION optimizer_switch='semijoin_with_cache=on';
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SET SESSION join_cache_level=2;
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EXPLAIN
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SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
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WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
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SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
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WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
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set optimizer_switch=@tmp_optimizer_switch;
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set join_cache_level=default;
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DROP TABLE t1,t2,t3,t4;
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--echo #
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--echo # Bug #899696: potential incremental join cache for semijoin
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--echo #
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CREATE TABLE t1 (pk int PRIMARY KEY, a int);
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INSERT INTO t1 VALUES (1, 6), (2, 8);
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CREATE TABLE t2 (b int) ENGINE=InnoDB;
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INSERT INTO t2 VALUES (8);
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CREATE TABLE t3 (pk int PRIMARY KEY, a int);
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INSERT INTO t3 VALUES (1, 6), (2, 8);
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CREATE TABLE t4 (b int) ENGINE=InnoDB;
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INSERT INTO t4 VALUES (2);
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set @tmp_optimizer_switch=@@optimizer_switch;
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SET optimizer_switch = 'semijoin_with_cache=on';
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SET join_cache_level = 2;
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EXPLAIN
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SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
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SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
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set optimizer_switch=@tmp_optimizer_switch;
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set join_cache_level=default;
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DROP TABLE t1,t2,t3,t4;
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--echo #
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--echo # Bug #899962: materialized subquery with join_cache_level=3
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--echo #
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CREATE TABLE t1 (a varchar(1), b varchar(1)) ENGINE=InnoDB;
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INSERT INTO t1 VALUES ('v','v');
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CREATE TABLE t2 (a varchar(1), b varchar(1)) ENGINE=InnoDB;
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INSERT INTO t2 VALUES ('v','v');
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set @tmp_optimizer_switch=@@optimizer_switch;
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SET optimizer_switch = 'semijoin_with_cache=on';
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SET join_cache_level = 3;
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EXPLAIN
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SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
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SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
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EXPLAIN
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SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
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SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
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set optimizer_switch=@tmp_optimizer_switch;
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set join_cache_level=default;
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DROP TABLE t1,t2;
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set global innodb_stats_persistent= @innodb_stats_persistent_save;
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set global innodb_stats_persistent_sample_pages=
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@innodb_stats_persistent_sample_pages_save;
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set @@optimizer_switch=@save_optimizer_switch_jcl6;
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set @optimizer_switch_for_subselect_sj2_test=NULL;
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set @join_cache_level_subselect_sj2_test=NULL;
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