# include/index_merge_ror.inc # # ROR-index_merge tests. # # The variable # $engine_type -- storage engine to be tested # has to be set before sourcing this script. # # Note: The comments/expectations refer to MyISAM. # They might be not valid for other storage engines. # # Last update: # 2006-08-02 ML test refactored # old name was t/index_merge_ror.test # main code went into include/index_merge_ror.inc # --echo #---------------- ROR-index_merge tests ----------------------- create table t1 ( /* Field names reflect value(rowid) distribution, st=STairs, swt= SaWTooth */ st_a int not null default 0, swt1a int not null default 0, swt2a int not null default 0, st_b int not null default 0, swt1b int not null default 0, swt2b int not null default 0, /* fields/keys for row retrieval tests */ key1 int, key2 int, key3 int, key4 int, /* make rows much bigger then keys */ filler1 char (200), filler2 char (200), filler3 char (200), filler4 char (200), filler5 char (200), filler6 char (200), /* order of keys is important */ key sta_swt12a(st_a,swt1a,swt2a), key sta_swt1a(st_a,swt1a), key sta_swt2a(st_a,swt2a), key sta_swt21a(st_a,swt2a,swt1a), key st_a(st_a), key stb_swt1a_2b(st_b,swt1b,swt2a), key stb_swt1b(st_b,swt1b), key st_b(st_b), key(key1), key(key2), key(key3), key(key4) ) ; # Fill table create table t0 as select * from t1; --disable_query_log --echo # Printing of many insert into t0 values (....) disabled. begin; let $cnt=1000; while ($cnt) { eval insert into t0 values (1, 2, 3, 1, 2, 3, 0, 0, 0, 0, 'data1', 'data2', 'data3', 'data4', 'data5', 'data6'); dec $cnt; } commit; --enable_query_log alter table t1 disable keys; --disable_query_log --echo # Printing of many insert into t1 select .... from t0 disabled. let $1=4; begin; while ($1) { let $2=4; while ($2) { let $3=4; while ($3) { eval insert into t1 select $1, $2, $3, $1 ,$2, $3, key1, key2, key3, key4, filler1, filler2, filler3, filler4, filler5, filler6 from t0; dec $3; } dec $2; } dec $1; } commit; --echo # Printing of many insert into t1 (...) values (....) disabled. # Row retrieval tests # -1 is used for values 'out of any range we are using' # insert enough rows for index intersection to be used for (key1,key2) insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 100, 100,'key1-key2-key3-key4'); let $cnt=400; begin; while ($cnt) { eval insert into t1 (key1, key2, key3, key4, filler1) values (100, -1, 100, -1,'key1-key3'); dec $cnt; } let $cnt=400; while ($cnt) { eval insert into t1 (key1, key2, key3, key4, filler1) values (-1, 100, -1, 100,'key2-key4'); dec $cnt; } commit; --enable_query_log alter table t1 enable keys; select count(*) from t1; # One row results tests for cases where a single row matches all conditions explain select key1,key2 from t1 where key1=100 and key2=100; select key1,key2 from t1 where key1=100 and key2=100; explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; # Several-rows results insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, -1, -1, 'key1-key2'); insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 100, 100, 'key4-key3'); # ROR-intersection, not covering explain select key1,key2,filler1 from t1 where key1=100 and key2=100; select key1,key2,filler1 from t1 where key1=100 and key2=100; # ROR-intersection, covering explain select key1,key2 from t1 where key1=100 and key2=100; select key1,key2 from t1 where key1=100 and key2=100; # ROR-union of ROR-intersections explain select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100; select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100; explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; # 3-way ROR-intersection explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100; select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100; # ROR-union(ROR-intersection, ROR-range) insert into t1 (key1,key2,key3,key4,filler1) values (101,101,101,101, 'key1234-101'); explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101; select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101; # Run some ROR updates/deletes select key1,key2, filler1 from t1 where key1=100 and key2=100; update t1 set filler1='to be deleted' where key1=100 and key2=100; update t1 set key1=200,key2=200 where key1=100 and key2=100; delete from t1 where key1=200 and key2=200; select key1,key2,filler1 from t1 where key2=100 and key2=200; # ROR-union(ROR-intersection) with one of ROR-intersection giving empty # results explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; delete from t1 where key3=100 and key4=100; # ROR-union with all ROR-intersections giving empty results explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100; # ROR-intersection with empty result explain select key1,key2 from t1 where key1=100 and key2=100; select key1,key2 from t1 where key1=100 and key2=100; # ROR-union tests with various cases. # All scans returning duplicate rows: insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-1'); insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-2'); insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-3'); explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, -1, 200,'key4'); explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 200, -1,'key3'); explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200; ## ## Optimizer tests ## # Check that the shortest key is used for ROR-intersection, covering and non-covering. explain select * from t1 where st_a=1 and st_b=1; explain select st_a,st_b from t1 where st_a=1 and st_b=1; # Check if "ingore index" syntax works explain select st_a from t1 ignore index (st_a) where st_a=1 and st_b=1; # Do many tests # Check that keys that don't improve selectivity are skipped. # # Different value on 32 and 64 bit --replace_result sta_swt12a sta_swt21a sta_swt12a, sta_swt12a, explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1; explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1; explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1; explain select * from t1 ignore index (sta_swt21a, stb_swt1a_2b) where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1; explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b) where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1; explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b, stb_swt1b) where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1; explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1; explain select * from t1 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1; explain select st_a from t1 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1; explain select st_a from t1 where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1; drop table t0,t1; # 'Partially' covered fields test create table t2 ( a char(10), b char(10), filler1 char(255), filler2 char(255), key(a(5)), key(b(5)) ); --disable_query_log let $1=8; begin; while ($1) { eval insert into t2 values (repeat(char($1+64), 8),repeat(char($1+64), 8),'filler1', 'filler2'); dec $1; } insert into t2 select * from t2; insert into t2 select * from t2; commit; --enable_query_log # The table row buffer is reused. Fill it with rows that don't match. select count(a) from t2 where a='BBBBBBBB'; select count(a) from t2 where b='BBBBBBBB'; # BUG#1: --replace_result a a_or_b b a_or_b explain select count(a) from t2 where a='AAAAAAAA' and b='AAAAAAAA'; select count(a) from t2 where a='AAAAAAAA' and b='AAAAAAAA'; select count(a) from t2 ignore index(a,b) where a='AAAAAAAA' and b='AAAAAAAA'; insert into t2 values ('ab', 'ab', 'uh', 'oh'); explain select a from t2 where a='ab'; drop table t2; # # BUG#25048 - ERROR 126 : Incorrect key file for table '.XXXX.MYI'; try to # repair it # CREATE TABLE t1(c1 INT, c2 INT DEFAULT 0, c3 CHAR(255) DEFAULT '', KEY(c1), KEY(c2), KEY(c3)); INSERT INTO t1(c1) VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0), (0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(0); INSERT INTO t1 VALUES(0,0,0); CREATE TABLE t2(c1 int); INSERT INTO t2 VALUES(1); DELETE t1 FROM t1,t2 WHERE t1.c1=0 AND t1.c2=0; SELECT * FROM t1; DROP TABLE t1,t2;