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323 lines
11 KiB
Text
323 lines
11 KiB
Text
# t/index_merge_myisam.test
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#
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# Index merge tests
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#
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# Last update:
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# 2006-08-07 ML test refactored (MySQL 5.1)
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# Main code of several index_merge tests
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# -> include/index_merge*.inc
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# wrapper t/index_merge_innodb.test sources now several
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# include/index_merge*.inc files
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#
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SET STORAGE_ENGINE = MyISAM;
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# MyISAM supports Merge tables
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let $merge_table_support= 1;
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set @optimizer_switch_save= @@optimizer_switch;
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set optimizer_switch='index_merge_sort_intersection=off';
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--source include/index_merge1.inc
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--source include/index_merge_ror.inc
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--source include/index_merge2.inc
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--source include/index_merge_2sweeps.inc
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--source include/index_merge_ror_cpk.inc
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b int, c int, filler char(100),
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key(a), key(b), key(c));
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insert into t1 select
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A.a * B.a*10 + C.a*100,
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A.a * B.a*10 + C.a*100,
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A.a,
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'filler'
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from t0 A, t0 B, t0 C;
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--echo This should use union:
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explain select * from t1 where a=1 or b=1;
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--echo This should use ALL:
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set optimizer_switch='default,index_merge=off';
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explain select * from t1 where a=1 or b=1;
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--echo This should use sort-union:
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set optimizer_switch='default,index_merge_union=off';
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explain select * from t1 where a=1 or b=1;
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--echo This will use sort-union:
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set optimizer_switch=default;
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explain select * from t1 where a<1 or b <1;
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--echo This should use ALL:
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set optimizer_switch='default,index_merge_sort_union=off';
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explain select * from t1 where a<1 or b <1;
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--echo This should use ALL:
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set optimizer_switch='default,index_merge=off';
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explain select * from t1 where a<1 or b <1;
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--echo This will use sort-union:
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set optimizer_switch='default,index_merge_union=off';
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explain select * from t1 where a<1 or b <1;
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alter table t1 add d int, add key(d);
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update t1 set d=a;
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--echo This will use sort_union:
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set optimizer_switch=default;
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explain select * from t1 where (a=3 or b in (1,2)) and (c=3 or d=4);
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--echo And if we disable sort_union, union:
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set optimizer_switch='default,index_merge_sort_union=off';
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explain select * from t1 where (a=3 or b in (1,2)) and (c=3 or d=4);
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drop table t1;
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# Now test that intersection can be disabled
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create table t1 (
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a int, b int, c int,
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filler1 char(200), filler2 char(200),
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key(a),key(b),key(c)
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);
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insert into t1
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select A.a+10*B.a, A.a+10*B.a, A.a+10*B.a+100*C.a, 'foo', 'bar'
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from t0 A, t0 B, t0 C, t0 D where D.a<5;
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--echo This should be intersect:
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set optimizer_switch=default;
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explain select * from t1 where a=10 and b=10;
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--echo No intersect when index_merge is disabled:
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set optimizer_switch='default,index_merge=off';
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explain select * from t1 where a=10 and b=10;
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--echo No intersect if it is disabled:
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set optimizer_switch='default,index_merge_sort_intersection=off,index_merge_intersection=off';
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explain select * from t1 where a=10 and b=10;
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--echo Do intersect when union was disabled
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set optimizer_switch='default,index_merge_union=off';
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explain select * from t1 where a=10 and b=10;
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--echo Do intersect when sort_union was disabled
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set optimizer_switch='default,index_merge_sort_union=off';
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explain select * from t1 where a=10 and b=10;
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# Now take union-of-intersection and see how we can disable parts of it
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--echo This will use intersection inside a union:
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set optimizer_switch=default;
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explain select * from t1 where a=10 and b=10 or c=10;
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--echo Should be only union left:
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set optimizer_switch='default,index_merge_intersection=off';
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explain select * from t1 where a=10 and b=10 or c=10;
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--echo This will switch to sort-union (intersection will be gone, too,
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--echo that's a known limitation:
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set optimizer_switch='default,index_merge_union=off';
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explain select * from t1 where a=10 and b=10 or c=10;
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set optimizer_switch=default;
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drop table t0, t1;
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--echo #
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--echo # BUG#834514 Assertion `!table || (!table->read_set || bitmap_is_set(...' with aggregates
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--echo #
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CREATE TABLE t1 ( a int , b int, c int, KEY (b), PRIMARY KEY (a)) ;
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INSERT INTO t1 VALUES (1,4,0),(5,0,0),(6,7,0),(7,7,0),(8,1,0),(9,7,0),(10,1,0);
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CREATE TABLE t2 ( b int, c int, KEY (c,b)) ;
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INSERT INTO t2 VALUES (7,0),(1,0),(7,0),(1,0);
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CREATE TABLE t3 ( a int ) ;
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SELECT COUNT(DISTINCT t2.b), CONCAT(t1.c)
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FROM t1, t2
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WHERE (t2.c = t1.c)
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AND (
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t1.b IN ( 4 )
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OR t1.a = 137
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AND EXISTS ( SELECT a FROM t3 )
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)
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GROUP BY 2;
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DROP TABLE t1,t2,t3;
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--echo #
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--echo # MDEV-4556 Server crashes in SEL_ARG::rb_insert with index_merge+index_merge_sort_union, FORCE INDEX
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--echo #
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CREATE TABLE t1 (
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pk int,
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code char(2),
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population_rate int,
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area_rate int,
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primary key (pk),
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index (code),
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key (population_rate),
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key (area_rate)
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);
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INSERT INTO t1 VALUES (1,'WI',20, 23), (2, 'WA', 13, 18);
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EXPLAIN
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SELECT * FROM t1 FORCE INDEX ( PRIMARY, population_rate, area_rate, code )
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WHERE pk = 1 OR population_rate = 1 OR ( area_rate IN ( 1,2 ) OR area_rate IS NULL )
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AND (population_rate = 25 OR area_rate BETWEEN 2 AND 25 OR code BETWEEN 'MA' AND 'TX');
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SELECT * FROM t1 FORCE INDEX ( PRIMARY, population_rate, area_rate, code )
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WHERE pk = 1 OR population_rate = 1 OR ( area_rate IN ( 1,2 ) OR area_rate IS NULL )
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AND (population_rate = 25 OR area_rate BETWEEN 2 AND 25 OR code BETWEEN 'MA' AND 'TX');
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DROP TABLE t1;
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--echo #
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--echo # MDEV-5069: Server crashes in SEL_ARG::increment_use_count with index_merge+index_merge_sort_union, FORCE INDEX
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--echo #
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CREATE TABLE t1 (
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c1 varchar(64),
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i int,
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pk integer auto_increment,
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c2 varchar(64),
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index (c1),
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index (i),
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primary key (pk),
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key (c2)) ENGINE=myisam;
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ALTER TABLE t1 DISABLE KEYS;
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INSERT INTO t1 VALUES
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('West Virginia', 6121, NULL, 'California'),('Georgia', 60177, NULL, 'Arkansas'),
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('Delaware', 90, NULL, 'Oregon'),('Wyoming', 7, NULL, 'Missouri'),(
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'Delaware', 2, NULL, 'Utah'),('Wisconsin', 0, NULL, 'Iowa'),
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('Kansas', 0, NULL, 'Florida'),('Ohio', 34358, NULL, 'Colorado'),
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('Maine', 118, NULL, 'Texas'),('Mississippi', 0, NULL, 'Georgia'),
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('Tennessee', 4, NULL, 'N/A'),('Georgia', 0, NULL, 'New Hampshire'),
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('Wyoming', 2, NULL, 'N/A'),('Florida', 0, NULL, 'Arizona'),
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('Rhode Island', -24002, NULL, 'Michigan'),('Alabama', 142, NULL, 'Indiana'),
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('Colorado', 0, NULL, 'Louisiana'),('Michigan', 21194, NULL, 'Louisiana'),
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('Oklahoma', 31475, NULL, 'Alabama'),('Pennsylvania', 0, NULL, 'Oklahoma'),
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('Texas', 0, NULL, 'Texas'),('West Virginia', 5, NULL, 'Utah'),
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('Florida', 49653, NULL, 'Kentucky'),('Tennessee', 19075, NULL, 'Oregon'),
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('Maine', 3, NULL, 'Kansas, Kentucky, Iowa'),('Iowa', 1, NULL, 'South Dakota'),
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('Kansas', -4037, NULL, 'Virginia'),('Delaware', 22550, NULL, 'Utah'),
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('Illinois', 14634, NULL, 'South Carolina, Colorado'),
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('Kansas', 6, NULL, 'South Dakota'),('Delaware', 9, NULL, ''),
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('', 0, NULL, 'Utah, Delaware, Florida, Georgia, Nevada'),
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('Colorado', 8, NULL, 'Montana'),('Maryland', 2689, NULL, 'Hawaii'),
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('Florida', -12306, NULL, 'Delaware'),
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('Indiana', 38567, NULL, 'Iowa, Minnesota, Maine'),
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('Oklahoma', 9, NULL, 'Delaware, Kansas, Oregon, Nebraska, Maryland, Minnesota'),
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('Tennessee', 12460, NULL, NULL),('Kentucky', 0, NULL, 'Ohio'),
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('Nevada', 7, NULL, 'Vermont, Oregon, Oklahoma, Montana'),
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('Nebraska', 61966, NULL, 'Nevada'),('Alaska', 131, NULL, 'Louisiana, Maine'),
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('Wisconsin', 4, NULL, 'Nevada'),('South Carolina', 0, NULL, 'Washington'),
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('West Virginia', 51314, NULL, 'Ohio'),('Louisiana', 0, NULL, ''),
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('Pennsylvania', 0, NULL, 'Iowa, Idaho'),('Arkansas', 14010, NULL, 'Indiana'),
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('Wyoming', -15514, NULL, 'Maine'),('Georgia', 0, NULL, 'N/A'),
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('Kentucky', 1, NULL, 'Idaho'),('Wyoming', 60249, NULL, 'Indiana, Iowa'),
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('Pennsylvania', 69, NULL, 'W'),
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('New Mexico', 11480, NULL, 'Florida, Georgia, Hawaii'),
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('South Carolina', 9, NULL, 'Iowa'),('Virginia', 0, NULL, 'Connecticut'),
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('Mississippi', 19749, NULL, 'Rhode Island'),('Illinois', 5, NULL, 'Virginia'),
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('Texas', -1749, NULL, 'Tennessee'),('Arizona', 28, NULL, 'California'),
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('Florida', 62151, NULL, 'Kansas'),('California', 172, NULL, 'SC'),
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('New Jersey', 0, NULL, 'North Carolina'),('Wyoming', 4, NULL, 'I'),
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('Kansas', 10683, NULL, 'California'),('Arkansas', -14275, NULL, 'K'),
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('Arizona', 5, NULL, 'California, Delaware, Rhode Island, Maryland'),
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('Florida', 0, NULL, 'T'),('Alaska', 241, NULL, 'Virginia');
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ALTER TABLE t1 ENABLE KEYS;
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EXPLAIN
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SELECT * FROM t1 FORCE KEY (PRIMARY , i , c1 , c2)
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WHERE pk = 255 OR i = 22 OR (pk IN (1 , 136) AND c2 IN ('c' , 'w') AND (c1 NOT BETWEEN 'e' AND 'i' OR c2 > 'g')) OR pk != 1 ;
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DROP TABLE t1;
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set optimizer_switch= @optimizer_switch_save;
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--echo #
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--echo # MDEV-21932: ROR union with index_merge_sort_union=off
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--echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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insert into t0 select a+10 from t0;
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insert into t0 select a+20 from t0;
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insert into t0 select a+40 from t0;
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insert into t0 select a+80 from t0;
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insert into t0 select a+160 from t0;
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delete from t0 where a > 300;
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create table t1 (
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f1 int, f2 int, f3 int, f4 int,
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primary key (f1), key (f3), key(f4)
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) engine=myisam;
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insert into t1 select a+100, a+100, a+100, a+100 from t0;
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insert into t1 VALUES (9,0,2,6), (9930,0,0,NULL);
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analyze table t1;
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set optimizer_switch='index_merge_sort_union=off';
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set optimizer_switch='index_merge_union=on';
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let $q1=
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select * from t1
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where (( f3 = 1 or f1 = 7 ) and f1 < 10) or
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(f3 between 2 and 2 and ( f3 = 1 or f4 < 7 ));
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eval explain $q1;
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eval $q1;
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insert into t1 values (52,0,1,0),(53,0,1,0);
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insert into t1 values (50,0,1,0),(51,0,1,0);
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insert into t1 values (48,0,1,0),(49,0,1,0);
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insert into t1 values (46,0,1,0),(47,0,1,0);
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insert into t1 values (44,0,1,0),(45,0,1,0);
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analyze table t1;
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let $q2=
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select * from t1
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where (( f3 = 1 or f1 = 7 ) and f1 < 10) or
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(f3 between 2 and 2 and ( f3 = 1 or f4 < 7 ));
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eval explain $q2;
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eval $q2;
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drop table t0,t1;
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set optimizer_switch= @optimizer_switch_save;
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--echo #
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--echo # MDEV-16695: Estimate for rows of derived tables is very high when we are using index_merge union
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--echo #
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create table t0
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(
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key1 int not null,
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INDEX i1(key1)
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);
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insert into t0 select * from seq_1_to_1024;
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alter table t0 add key2 int not null, add index i2(key2);
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alter table t0 add key3 int not null, add index i3(key3);
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alter table t0 add key8 int not null, add index i8(key8);
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update t0 set key2=key1,key3=key1,key8=1024-key1;
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analyze table t0;
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set @optimizer_switch_save=@@optimizer_switch;
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set optimizer_switch='derived_merge=off,derived_with_keys=off';
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explain select * from (select * from t0 where key1 = 3 or key2 =3) as Z where Z.key8 > 5;
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select * from (select * from t0 where key1 = 3 or key2 =3) as Z where Z.key8 > 5;
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set optimizer_use_condition_selectivity=2;
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explain select * from (select * from t0 where key1 = 3 or key2 =3) as Z where Z.key8 > 5;
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select * from (select * from t0 where key1 = 3 or key2 =3) as Z where Z.key8 > 5;
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set @@optimizer_switch= @optimizer_switch_save;
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drop table t0;
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--echo # End of 10.1 tests
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