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136408b1cf
- Make create_tmp_table() set KEY_PART_INFO attributes for the keys it creates. This wasn't needed before but is needed now, when temp. tables that are results of SJ-Materialization are being used for joins. This particular bug depended on HA_VAR_LENGTH_PART being set, but also added code to set HA_BLOB_PART and HA_NULL_PART when appropriate.
105 lines
2.7 KiB
Plaintext
105 lines
2.7 KiB
Plaintext
#
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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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--source t/subselect_sj2.test
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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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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 join_cache_level=default;
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show variables like 'join_cache_level';
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set @@optimizer_switch=@save_optimizer_switch_jcl6;
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