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405 lines
10 KiB
405 lines
10 KiB
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# This test checks that setting of optimizer_switch works correctly.
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# Test cases for bugs related to changing the setting of optimizer_switch,
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# should go here.
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--echo
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--echo BUG#37120 optimizer_switch allowable values not according to specification
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--echo
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='materialization=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='semijoin=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='loosescan=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='semijoin=off,materialization=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='materialization=off,semijoin=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='semijoin=off,materialization=off,loosescan=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='semijoin=off,loosescan=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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set optimizer_switch='materialization=off,loosescan=off';
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select @@optimizer_switch;
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set optimizer_switch='default';
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# test re-optimization/re-execution with different execution methods
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# prepare once, exec with different modes
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create table t1 (a1 char(8), a2 char(8));
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create table t2 (b1 char(8), b2 char(8));
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insert into t1 values ('1 - 00', '2 - 00');
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insert into t1 values ('1 - 01', '2 - 01');
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insert into t1 values ('1 - 02', '2 - 02');
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insert into t2 values ('1 - 01', '2 - 01');
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insert into t2 values ('1 - 01', '2 - 01');
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insert into t2 values ('1 - 02', '2 - 02');
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insert into t2 values ('1 - 02', '2 - 02');
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insert into t2 values ('1 - 03', '2 - 03');
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set @@optimizer_switch="semijoin=off";
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prepare st1 from
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"select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1)";
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set @@optimizer_switch="semijoin=on,materialization=off";
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execute st1;
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set @@optimizer_switch="semijoin=off,materialization=on";
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execute st1;
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set optimizer_switch='default';
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set @@optimizer_switch="materialization=off";
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prepare st1 from
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"select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1)";
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set @@optimizer_switch="semijoin=off,materialization=on";
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execute st1;
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set @@optimizer_switch="semijoin=on,materialization=off";
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execute st1;
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set optimizer_switch='default';
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drop table t1, t2;
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--echo #
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--echo # BUG#47367 Crash in Name_resolution_context::process_error
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--echo #
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SET SESSION optimizer_switch = 'default,semijoin=off';
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CREATE TABLE t1 (f1 INTEGER);
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CREATE TABLE t2 LIKE t1;
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delimiter |;
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CREATE PROCEDURE p1 () BEGIN SELECT f1 FROM t1 WHERE f1 IN (SELECT f1 FROM t2); END|
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delimiter ;|
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CALL p1;
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ALTER TABLE t2 CHANGE COLUMN f1 my_column INT;
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CALL p1;
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DROP PROCEDURE p1;
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--echo # Restore the original column list of table t2:
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ALTER TABLE t2 CHANGE COLUMN my_column f1 INT;
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SET SESSION optimizer_switch = 'semijoin=on';
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delimiter |;
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--echo # Recreate procedure so that we eliminate any caching effects
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CREATE PROCEDURE p1 () BEGIN SELECT f1 FROM t1 WHERE f1 IN (SELECT f1 FROM t2); END|
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delimiter ;|
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CALL p1;
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ALTER TABLE t2 CHANGE COLUMN f1 my_column INT;
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CALL p1;
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DROP PROCEDURE p1;
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DROP TABLE t1, t2;
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SET SESSION optimizer_switch = 'default';
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--echo #
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--echo # Bug #46744 Crash in optimize_semijoin_nests on empty view
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--echo # with limit and procedure.
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--echo #
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--disable_warnings
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DROP TABLE IF EXISTS t1, t2;
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DROP VIEW IF EXISTS v1;
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DROP PROCEDURE IF EXISTS p1;
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--enable_warnings
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CREATE TABLE t1 ( f1 int );
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CREATE TABLE t2 ( f1 int );
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insert into t2 values (5), (7);
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CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1 LIMIT 2;
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create procedure p1()
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select COUNT(*)
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FROM v1 WHERE f1 IN
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(SELECT f1 FROM t2 WHERE f1 = ANY (SELECT f1 FROM v1));
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SET SESSION optimizer_switch = 'semijoin=on';
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CALL p1();
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SET SESSION optimizer_switch = 'semijoin=off';
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CALL p1();
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drop table t1, t2;
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drop view v1;
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drop procedure p1;
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set SESSION optimizer_switch='default';
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--echo # End of bug#46744
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--echo #
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--echo # Bug#50489: another segfault in fix_semijoin_strategies...
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--echo #
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CREATE TABLE it (
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id INT NOT NULL,
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expr_key INT NOT NULL,
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expr_nokey INT NOT NULL,
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expr_padder INT DEFAULT NULL,
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KEY expr_key(expr_key)
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);
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INSERT INTO it VALUES (135,218264606,218264606,100);
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INSERT INTO it VALUES (201,810783319,810783319,200);
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CREATE TABLE ot (
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id INT NOT NULL,
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expr_key INT NOT NULL,
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expr_nokey INT NOT NULL,
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KEY expr_key(expr_key)
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);
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delimiter |;
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let proc_text=
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CREATE PROCEDURE run_n_times(x int)
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BEGIN
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DECLARE c int;
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WHILE x DO
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SET x = x-1;
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SELECT COUNT(expr_key) INTO c FROM ot
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WHERE expr_key IN (SELECT expr_nokey FROM it)
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AND ot.expr_key<100000000;
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END WHILE;
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END|
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delimiter ;|
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eval $proc_text;
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SET optimizer_switch="default";
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call run_n_times(1);
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SET optimizer_switch="firstmatch=off,materialization=off";
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call run_n_times(1);
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SET optimizer_switch="default";
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call run_n_times(1);
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DROP PROCEDURE run_n_times;
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# Re-create procedure to avoid caching effects
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eval $proc_text;
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SET optimizer_switch="firstmatch=off,materialization=off";
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call run_n_times(1);
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SET optimizer_switch="default";
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call run_n_times(1);
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DROP PROCEDURE run_n_times;
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# Re-create procedure to avoid caching effects
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eval $proc_text;
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SET optimizer_switch="semijoin=off,materialization=off";
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call run_n_times(1);
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SET optimizer_switch="default";
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call run_n_times(1);
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DROP PROCEDURE run_n_times;
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DROP TABLE it, ot;
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# End of Bug#50489
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--echo #
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--echo # BUG#31480: Incorrect result for nested subquery when executed via semijoin
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--echo #
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CREATE TABLE t1 (a INT NOT NULL, b INT NOT NULL);
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CREATE TABLE t2 (c INT NOT NULL, d INT NOT NULL);
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CREATE TABLE t3 (e INT NOT NULL);
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CREATE TABLE t4 (f INT NOT NULL, g INT NOT NULL);
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INSERT INTO t1 VALUES (1,10);
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INSERT INTO t1 VALUES (2,10);
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INSERT INTO t1 VALUES (1,20);
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INSERT INTO t1 VALUES (2,20);
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INSERT INTO t1 VALUES (3,20);
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INSERT INTO t1 VALUES (2,30);
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INSERT INTO t1 VALUES (4,40);
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INSERT INTO t2 VALUES (2,10);
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INSERT INTO t2 VALUES (2,20);
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INSERT INTO t2 VALUES (4,10);
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INSERT INTO t2 VALUES (5,10);
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INSERT INTO t2 VALUES (3,20);
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INSERT INTO t2 VALUES (2,40);
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INSERT INTO t3 VALUES (10);
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INSERT INTO t3 VALUES (30);
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INSERT INTO t3 VALUES (10);
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INSERT INTO t3 VALUES (20);
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INSERT INTO t4 VALUES (2,10);
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INSERT INTO t4 VALUES (2,10);
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INSERT INTO t4 VALUES (3,10);
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INSERT INTO t4 VALUES (4,10);
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INSERT INTO t4 VALUES (4,20);
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INSERT INTO t4 VALUES (4,20);
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--echo # Reference to the parent query block (used tables was wrong)
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d >= SOME(SELECT e FROM t3 as tc
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WHERE ta.b=tc.e));
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analyze table t1;
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analyze table t2;
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analyze table t3;
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analyze table t4;
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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--echo # Subquery with GROUP BY and HAVING
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d >= SOME(SELECT SUM(g) FROM t4 as tc
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GROUP BY f
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HAVING ta.a=tc.f));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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--echo # Subquery with ORDER BY and LIMIT
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set @@optimizer_switch='materialization=off,semijoin=off';
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--echo # NOTE: The ordered subquery should have a LIMIT clause to make sense
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d IN (SELECT g FROM t4 as tc
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WHERE ta.a=tc.f
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ORDER BY tc.f));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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--echo # Reference to the transformed-away query block (dependency was wrong)
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d >= SOME(SELECT e FROM t3 as tc
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WHERE tb.d=tc.e));
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eval EXPLAIN $query;
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--sorted_result
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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--sorted_result
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eval $query;
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--echo # Reference above the parent query block (should not be affected)
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS t
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WHERE t.a NOT IN (SELECT a FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d >= SOME(SELECT e FROM t3 as tc
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WHERE t.b=tc.e)));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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--echo # EXISTS with reference to the parent query block
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE EXISTS (SELECT * FROM t3 as tc
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WHERE ta.b=tc.e));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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--sorted_result
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eval $query;
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--echo # Scalar subquery with reference to the parent query block
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE tb.d = (SELECT MIN(e) FROM t3 as tc
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WHERE ta.b=tc.e));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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--echo # Combine scalar subquery with quantified comparison subquery
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set @@optimizer_switch='materialization=off,semijoin=off';
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let query=
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SELECT * FROM t1 AS ta
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WHERE ta.a IN (SELECT c FROM t2 AS tb
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WHERE (SELECT MIN(e) FROM t3 as tc
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WHERE tb.d=tc.e) < SOME(SELECT e FROM t3 as tc
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WHERE ta.b=tc.e));
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eval EXPLAIN $query;
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eval $query;
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set @@optimizer_switch='materialization=off,semijoin=on';
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eval EXPLAIN $query;
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eval $query;
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DROP TABLE t1, t2, t3, t4;
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set @@optimizer_switch='default';
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--echo # End of BUG#31480
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