mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
2415 lines
83 KiB
Text
2415 lines
83 KiB
Text
drop table if exists t1,t2;
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SET SQL_WARNINGS=1;
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CREATE TABLE t1 (
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STRING_DATA char(255) default NULL,
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KEY string_data (STRING_DATA)
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) ENGINE=MyISAM;
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INSERT INTO t1 VALUES ('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA');
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INSERT INTO t1 VALUES ('DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD');
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INSERT INTO t1 VALUES ('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF');
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INSERT INTO t1 VALUES ('FGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG');
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INSERT INTO t1 VALUES ('HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH');
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INSERT INTO t1 VALUES ('WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW');
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a));
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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delete from t1 where (a & 1);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1 (a int not null auto_increment, b int not null, primary key (a), index(b));
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insert into t1 (b) values (1),(2),(2),(2),(2);
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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show index from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 a A 5 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status Table is already up to date
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show index from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 a A 5 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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drop table t1;
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create table t1 (a int not null, b int not null, c int not null, primary key (a),key(b)) engine=myisam;
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insert into t1 values (3,3,3),(1,1,1),(2,2,2),(4,4,4);
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explain select * from t1 order by a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select * from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select * from t1 order by c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select a from t1 order by a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using index
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explain select b from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index NULL b 4 NULL 4 Using index
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explain select a,b from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select a,b from t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4
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explain select a,b,c from t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4
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drop table t1;
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (1), (2), (3);
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LOCK TABLES t1 WRITE;
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INSERT INTO t1 VALUES (1), (2), (3);
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OPTIMIZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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DROP TABLE t1;
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create table t1 ( t1 char(255), key(t1(250)));
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insert t1 values ('137513751375137513751375137513751375137569516951695169516951695169516951695169');
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insert t1 values ('178417841784178417841784178417841784178403420342034203420342034203420342034203');
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insert t1 values ('213872387238723872387238723872387238723867376737673767376737673767376737673767');
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insert t1 values ('242624262426242624262426242624262426242607890789078907890789078907890789078907');
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insert t1 values ('256025602560256025602560256025602560256011701170117011701170117011701170117011');
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insert t1 values ('276027602760276027602760276027602760276001610161016101610161016101610161016101');
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insert t1 values ('281528152815281528152815281528152815281564956495649564956495649564956495649564');
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insert t1 values ('292129212921292129212921292129212921292102100210021002100210021002100210021002');
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insert t1 values ('380638063806380638063806380638063806380634483448344834483448344834483448344834');
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insert t1 values ('411641164116411641164116411641164116411616301630163016301630163016301630163016');
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insert t1 values ('420842084208420842084208420842084208420899889988998899889988998899889988998899');
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insert t1 values ('438443844384438443844384438443844384438482448244824482448244824482448244824482');
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insert t1 values ('443244324432443244324432443244324432443239613961396139613961396139613961396139');
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insert t1 values ('485448544854485448544854485448544854485477847784778477847784778477847784778477');
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insert t1 values ('494549454945494549454945494549454945494555275527552755275527552755275527552755');
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insert t1 values ('538647864786478647864786478647864786478688918891889188918891889188918891889188');
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insert t1 values ('565556555655565556555655565556555655565554845484548454845484548454845484548454');
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insert t1 values ('607860786078607860786078607860786078607856665666566656665666566656665666566656');
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insert t1 values ('640164016401640164016401640164016401640141274127412741274127412741274127412741');
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insert t1 values ('719471947194719471947194719471947194719478717871787178717871787178717871787178');
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insert t1 values ('742574257425742574257425742574257425742549604960496049604960496049604960496049');
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insert t1 values ('887088708870887088708870887088708870887035963596359635963596359635963596359635');
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insert t1 values ('917791779177917791779177917791779177917773857385738573857385738573857385738573');
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insert t1 values ('933293329332933293329332933293329332933278987898789878987898789878987898789878');
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insert t1 values ('963896389638963896389638963896389638963877807780778077807780778077807780778077');
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delete from t1 where t1>'2';
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insert t1 values ('70'), ('84'), ('60'), ('20'), ('76'), ('89'), ('49'), ('50'),
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('88'), ('61'), ('42'), ('98'), ('39'), ('30'), ('25'), ('66'), ('61'), ('48'),
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('80'), ('84'), ('98'), ('19'), ('91'), ('42'), ('47');
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1 (i1 int, i2 int, i3 int, i4 int, i5 int, i6 int, i7 int, i8
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int, i9 int, i10 int, i11 int, i12 int, i13 int, i14 int, i15 int, i16 int, i17
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int, i18 int, i19 int, i20 int, i21 int, i22 int, i23 int, i24 int, i25 int,
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i26 int, i27 int, i28 int, i29 int, i30 int, i31 int, i32 int, i33 int, i34
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int, i35 int, i36 int, i37 int, i38 int, i39 int, i40 int, i41 int, i42 int,
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i43 int, i44 int, i45 int, i46 int, i47 int, i48 int, i49 int, i50 int, i51
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int, i52 int, i53 int, i54 int, i55 int, i56 int, i57 int, i58 int, i59 int,
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i60 int, i61 int, i62 int, i63 int, i64 int, i65 int, i66 int, i67 int, i68
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int, i69 int, i70 int, i71 int, i72 int, i73 int, i74 int, i75 int, i76 int,
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i77 int, i78 int, i79 int, i80 int, i81 int, i82 int, i83 int, i84 int, i85
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int, i86 int, i87 int, i88 int, i89 int, i90 int, i91 int, i92 int, i93 int,
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i94 int, i95 int, i96 int, i97 int, i98 int, i99 int, i100 int, i101 int, i102
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int, i103 int, i104 int, i105 int, i106 int, i107 int, i108 int, i109 int, i110
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int, i111 int, i112 int, i113 int, i114 int, i115 int, i116 int, i117 int, i118
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int, i119 int, i120 int, i121 int, i122 int, i123 int, i124 int, i125 int, i126
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int, i127 int, i128 int, i129 int, i130 int, i131 int, i132 int, i133 int, i134
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int, i135 int, i136 int, i137 int, i138 int, i139 int, i140 int, i141 int, i142
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int, i143 int, i144 int, i145 int, i146 int, i147 int, i148 int, i149 int, i150
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int, i151 int, i152 int, i153 int, i154 int, i155 int, i156 int, i157 int, i158
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int, i159 int, i160 int, i161 int, i162 int, i163 int, i164 int, i165 int, i166
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int, i167 int, i168 int, i169 int, i170 int, i171 int, i172 int, i173 int, i174
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int, i175 int, i176 int, i177 int, i178 int, i179 int, i180 int, i181 int, i182
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int, i183 int, i184 int, i185 int, i186 int, i187 int, i188 int, i189 int, i190
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int, i191 int, i192 int, i193 int, i194 int, i195 int, i196 int, i197 int, i198
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int, i199 int, i200 int, i201 int, i202 int, i203 int, i204 int, i205 int, i206
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||
int, i207 int, i208 int, i209 int, i210 int, i211 int, i212 int, i213 int, i214
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int, i215 int, i216 int, i217 int, i218 int, i219 int, i220 int, i221 int, i222
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||
int, i223 int, i224 int, i225 int, i226 int, i227 int, i228 int, i229 int, i230
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int, i231 int, i232 int, i233 int, i234 int, i235 int, i236 int, i237 int, i238
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int, i239 int, i240 int, i241 int, i242 int, i243 int, i244 int, i245 int, i246
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int, i247 int, i248 int, i249 int, i250 int, i251 int, i252 int, i253 int, i254
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int, i255 int, i256 int, i257 int, i258 int, i259 int, i260 int, i261 int, i262
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int, i263 int, i264 int, i265 int, i266 int, i267 int, i268 int, i269 int, i270
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int, i271 int, i272 int, i273 int, i274 int, i275 int, i276 int, i277 int, i278
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int, i279 int, i280 int, i281 int, i282 int, i283 int, i284 int, i285 int, i286
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int, i287 int, i288 int, i289 int, i290 int, i291 int, i292 int, i293 int, i294
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int, i295 int, i296 int, i297 int, i298 int, i299 int, i300 int, i301 int, i302
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int, i303 int, i304 int, i305 int, i306 int, i307 int, i308 int, i309 int, i310
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int, i311 int, i312 int, i313 int, i314 int, i315 int, i316 int, i317 int, i318
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int, i319 int, i320 int, i321 int, i322 int, i323 int, i324 int, i325 int, i326
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int, i327 int, i328 int, i329 int, i330 int, i331 int, i332 int, i333 int, i334
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int, i335 int, i336 int, i337 int, i338 int, i339 int, i340 int, i341 int, i342
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int, i343 int, i344 int, i345 int, i346 int, i347 int, i348 int, i349 int, i350
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int, i351 int, i352 int, i353 int, i354 int, i355 int, i356 int, i357 int, i358
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int, i359 int, i360 int, i361 int, i362 int, i363 int, i364 int, i365 int, i366
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int, i367 int, i368 int, i369 int, i370 int, i371 int, i372 int, i373 int, i374
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int, i375 int, i376 int, i377 int, i378 int, i379 int, i380 int, i381 int, i382
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int, i383 int, i384 int, i385 int, i386 int, i387 int, i388 int, i389 int, i390
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int, i391 int, i392 int, i393 int, i394 int, i395 int, i396 int, i397 int, i398
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||
int, i399 int, i400 int, i401 int, i402 int, i403 int, i404 int, i405 int, i406
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||
int, i407 int, i408 int, i409 int, i410 int, i411 int, i412 int, i413 int, i414
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||
int, i415 int, i416 int, i417 int, i418 int, i419 int, i420 int, i421 int, i422
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||
int, i423 int, i424 int, i425 int, i426 int, i427 int, i428 int, i429 int, i430
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||
int, i431 int, i432 int, i433 int, i434 int, i435 int, i436 int, i437 int, i438
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||
int, i439 int, i440 int, i441 int, i442 int, i443 int, i444 int, i445 int, i446
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||
int, i447 int, i448 int, i449 int, i450 int, i451 int, i452 int, i453 int, i454
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||
int, i455 int, i456 int, i457 int, i458 int, i459 int, i460 int, i461 int, i462
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||
int, i463 int, i464 int, i465 int, i466 int, i467 int, i468 int, i469 int, i470
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||
int, i471 int, i472 int, i473 int, i474 int, i475 int, i476 int, i477 int, i478
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||
int, i479 int, i480 int, i481 int, i482 int, i483 int, i484 int, i485 int, i486
|
||
int, i487 int, i488 int, i489 int, i490 int, i491 int, i492 int, i493 int, i494
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||
int, i495 int, i496 int, i497 int, i498 int, i499 int, i500 int, i501 int, i502
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||
int, i503 int, i504 int, i505 int, i506 int, i507 int, i508 int, i509 int, i510
|
||
int, i511 int, i512 int, i513 int, i514 int, i515 int, i516 int, i517 int, i518
|
||
int, i519 int, i520 int, i521 int, i522 int, i523 int, i524 int, i525 int, i526
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||
int, i527 int, i528 int, i529 int, i530 int, i531 int, i532 int, i533 int, i534
|
||
int, i535 int, i536 int, i537 int, i538 int, i539 int, i540 int, i541 int, i542
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||
int, i543 int, i544 int, i545 int, i546 int, i547 int, i548 int, i549 int, i550
|
||
int, i551 int, i552 int, i553 int, i554 int, i555 int, i556 int, i557 int, i558
|
||
int, i559 int, i560 int, i561 int, i562 int, i563 int, i564 int, i565 int, i566
|
||
int, i567 int, i568 int, i569 int, i570 int, i571 int, i572 int, i573 int, i574
|
||
int, i575 int, i576 int, i577 int, i578 int, i579 int, i580 int, i581 int, i582
|
||
int, i583 int, i584 int, i585 int, i586 int, i587 int, i588 int, i589 int, i590
|
||
int, i591 int, i592 int, i593 int, i594 int, i595 int, i596 int, i597 int, i598
|
||
int, i599 int, i600 int, i601 int, i602 int, i603 int, i604 int, i605 int, i606
|
||
int, i607 int, i608 int, i609 int, i610 int, i611 int, i612 int, i613 int, i614
|
||
int, i615 int, i616 int, i617 int, i618 int, i619 int, i620 int, i621 int, i622
|
||
int, i623 int, i624 int, i625 int, i626 int, i627 int, i628 int, i629 int, i630
|
||
int, i631 int, i632 int, i633 int, i634 int, i635 int, i636 int, i637 int, i638
|
||
int, i639 int, i640 int, i641 int, i642 int, i643 int, i644 int, i645 int, i646
|
||
int, i647 int, i648 int, i649 int, i650 int, i651 int, i652 int, i653 int, i654
|
||
int, i655 int, i656 int, i657 int, i658 int, i659 int, i660 int, i661 int, i662
|
||
int, i663 int, i664 int, i665 int, i666 int, i667 int, i668 int, i669 int, i670
|
||
int, i671 int, i672 int, i673 int, i674 int, i675 int, i676 int, i677 int, i678
|
||
int, i679 int, i680 int, i681 int, i682 int, i683 int, i684 int, i685 int, i686
|
||
int, i687 int, i688 int, i689 int, i690 int, i691 int, i692 int, i693 int, i694
|
||
int, i695 int, i696 int, i697 int, i698 int, i699 int, i700 int, i701 int, i702
|
||
int, i703 int, i704 int, i705 int, i706 int, i707 int, i708 int, i709 int, i710
|
||
int, i711 int, i712 int, i713 int, i714 int, i715 int, i716 int, i717 int, i718
|
||
int, i719 int, i720 int, i721 int, i722 int, i723 int, i724 int, i725 int, i726
|
||
int, i727 int, i728 int, i729 int, i730 int, i731 int, i732 int, i733 int, i734
|
||
int, i735 int, i736 int, i737 int, i738 int, i739 int, i740 int, i741 int, i742
|
||
int, i743 int, i744 int, i745 int, i746 int, i747 int, i748 int, i749 int, i750
|
||
int, i751 int, i752 int, i753 int, i754 int, i755 int, i756 int, i757 int, i758
|
||
int, i759 int, i760 int, i761 int, i762 int, i763 int, i764 int, i765 int, i766
|
||
int, i767 int, i768 int, i769 int, i770 int, i771 int, i772 int, i773 int, i774
|
||
int, i775 int, i776 int, i777 int, i778 int, i779 int, i780 int, i781 int, i782
|
||
int, i783 int, i784 int, i785 int, i786 int, i787 int, i788 int, i789 int, i790
|
||
int, i791 int, i792 int, i793 int, i794 int, i795 int, i796 int, i797 int, i798
|
||
int, i799 int, i800 int, i801 int, i802 int, i803 int, i804 int, i805 int, i806
|
||
int, i807 int, i808 int, i809 int, i810 int, i811 int, i812 int, i813 int, i814
|
||
int, i815 int, i816 int, i817 int, i818 int, i819 int, i820 int, i821 int, i822
|
||
int, i823 int, i824 int, i825 int, i826 int, i827 int, i828 int, i829 int, i830
|
||
int, i831 int, i832 int, i833 int, i834 int, i835 int, i836 int, i837 int, i838
|
||
int, i839 int, i840 int, i841 int, i842 int, i843 int, i844 int, i845 int, i846
|
||
int, i847 int, i848 int, i849 int, i850 int, i851 int, i852 int, i853 int, i854
|
||
int, i855 int, i856 int, i857 int, i858 int, i859 int, i860 int, i861 int, i862
|
||
int, i863 int, i864 int, i865 int, i866 int, i867 int, i868 int, i869 int, i870
|
||
int, i871 int, i872 int, i873 int, i874 int, i875 int, i876 int, i877 int, i878
|
||
int, i879 int, i880 int, i881 int, i882 int, i883 int, i884 int, i885 int, i886
|
||
int, i887 int, i888 int, i889 int, i890 int, i891 int, i892 int, i893 int, i894
|
||
int, i895 int, i896 int, i897 int, i898 int, i899 int, i900 int, i901 int, i902
|
||
int, i903 int, i904 int, i905 int, i906 int, i907 int, i908 int, i909 int, i910
|
||
int, i911 int, i912 int, i913 int, i914 int, i915 int, i916 int, i917 int, i918
|
||
int, i919 int, i920 int, i921 int, i922 int, i923 int, i924 int, i925 int, i926
|
||
int, i927 int, i928 int, i929 int, i930 int, i931 int, i932 int, i933 int, i934
|
||
int, i935 int, i936 int, i937 int, i938 int, i939 int, i940 int, i941 int, i942
|
||
int, i943 int, i944 int, i945 int, i946 int, i947 int, i948 int, i949 int, i950
|
||
int, i951 int, i952 int, i953 int, i954 int, i955 int, i956 int, i957 int, i958
|
||
int, i959 int, i960 int, i961 int, i962 int, i963 int, i964 int, i965 int, i966
|
||
int, i967 int, i968 int, i969 int, i970 int, i971 int, i972 int, i973 int, i974
|
||
int, i975 int, i976 int, i977 int, i978 int, i979 int, i980 int, i981 int, i982
|
||
int, i983 int, i984 int, i985 int, i986 int, i987 int, i988 int, i989 int, i990
|
||
int, i991 int, i992 int, i993 int, i994 int, i995 int, i996 int, i997 int, i998
|
||
int, i999 int, i1000 int, b blob) row_format=dynamic;
|
||
insert into t1 values (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, "Sergei");
|
||
update t1 set b=repeat('a',256);
|
||
update t1 set i1=0, i2=0, i3=0, i4=0, i5=0, i6=0, i7=0;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
delete from t1 where i8=1;
|
||
select i1,i2 from t1;
|
||
i1 i2
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
CREATE TABLE `t1` (
|
||
`post_id` mediumint(8) unsigned NOT NULL auto_increment,
|
||
`topic_id` mediumint(8) unsigned NOT NULL default '0',
|
||
`post_time` datetime NOT NULL default '0000-00-00 00:00:00',
|
||
`post_text` text NOT NULL,
|
||
`icon_url` varchar(10) NOT NULL default '',
|
||
`sign` tinyint(1) unsigned NOT NULL default '0',
|
||
`post_edit` varchar(150) NOT NULL default '',
|
||
`poster_login` varchar(35) NOT NULL default '',
|
||
`ip` varchar(15) NOT NULL default '',
|
||
PRIMARY KEY (`post_id`),
|
||
KEY `post_time` (`post_time`),
|
||
KEY `ip` (`ip`),
|
||
KEY `poster_login` (`poster_login`),
|
||
KEY `topic_id` (`topic_id`),
|
||
FULLTEXT KEY `post_text` (`post_text`)
|
||
) ENGINE=MyISAM;
|
||
INSERT INTO t1 (post_text) VALUES ('ceci est un test'),('ceci est un test'),('ceci est un test'),('ceci est un test'),('ceci est un test');
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255), KEY t1 (a, b, c, d, e));
|
||
ERROR 42000: Specified key was too long; max key length is 1000 bytes
|
||
CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255));
|
||
ALTER TABLE t1 ADD INDEX t1 (a, b, c, d, e);
|
||
ERROR 42000: Specified key was too long; max key length is 1000 bytes
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (a int not null, b int, c int, key(b), key(c), key(a,b), key(c,a));
|
||
INSERT into t1 values (0, null, 0), (0, null, 1), (0, null, 2), (0, null,3), (1,1,4);
|
||
create table t2 (a int not null, b int, c int, key(b), key(c), key(a));
|
||
INSERT into t2 values (1,1,1), (2,2,2);
|
||
optimize table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 optimize status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 b 1 b A 5 NULL NULL YES BTREE
|
||
t1 1 c 1 c A 5 NULL NULL YES BTREE
|
||
t1 1 a 1 a A 1 NULL NULL BTREE
|
||
t1 1 a 2 b A 5 NULL NULL YES BTREE
|
||
t1 1 c_2 1 c A 5 NULL NULL YES BTREE
|
||
t1 1 c_2 2 a A 5 NULL NULL BTREE
|
||
explain select * from t1,t2 where t1.a=t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 ALL a NULL NULL NULL 2
|
||
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer
|
||
explain select * from t1,t2 force index(a) where t1.a=t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 ALL a NULL NULL NULL 2
|
||
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer
|
||
explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 ALL a NULL NULL NULL 2
|
||
1 SIMPLE t1 ref a a 4 test.t2.a 3
|
||
explain select * from t1,t2 where t1.b=t2.b;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 ALL b NULL NULL NULL 2
|
||
1 SIMPLE t1 ref b b 5 test.t2.b 1 Using where
|
||
explain select * from t1,t2 force index(c) where t1.a=t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2
|
||
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer
|
||
explain select * from t1 where a=0 or a=2;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
|
||
explain select * from t1 force index (a) where a=0 or a=2;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range a a 4 NULL 4 Using where
|
||
explain select * from t1 where c=1;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref c,c_2 c 5 const 1 Using where
|
||
explain select * from t1 use index() where c=1;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
|
||
drop table t1,t2;
|
||
create table t1 (a int not null auto_increment primary key, b varchar(255));
|
||
insert into t1 (b) values (repeat('a',100)),(repeat('b',100)),(repeat('c',100));
|
||
update t1 set b=repeat(left(b,1),200) where a=1;
|
||
delete from t1 where (a & 1)= 0;
|
||
update t1 set b=repeat('e',200) where a=1;
|
||
flush tables;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
update t1 set b=repeat(left(b,1),255) where a between 1 and 5;
|
||
update t1 set b=repeat(left(b,1),10) where a between 32 and 43;
|
||
update t1 set b=repeat(left(b,1),2) where a between 64 and 66;
|
||
update t1 set b=repeat(left(b,1),65) where a between 67 and 70;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
insert into t1 (b) values (repeat('z',100));
|
||
update t1 set b="test" where left(b,1) > 'n';
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
create table t1 ( a text not null, key a (a(20)));
|
||
insert into t1 values ('aaa '),('aaa'),('aa');
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
repair table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
select concat(a,'.') from t1 where a='aaa';
|
||
concat(a,'.')
|
||
aaa .
|
||
aaa.
|
||
select concat(a,'.') from t1 where binary a='aaa';
|
||
concat(a,'.')
|
||
aaa.
|
||
update t1 set a='bbb' where a='aaa';
|
||
select concat(a,'.') from t1;
|
||
concat(a,'.')
|
||
bbb.
|
||
bbb.
|
||
aa.
|
||
drop table t1;
|
||
create table t1(a text not null, b text not null, c text not null, index (a(10),b(10),c(10)));
|
||
insert into t1 values('807780', '477', '165');
|
||
insert into t1 values('807780', '477', '162');
|
||
insert into t1 values('807780', '472', '162');
|
||
select * from t1 where a='807780' and b='477' and c='165';
|
||
a b c
|
||
807780 477 165
|
||
drop table t1;
|
||
DROP TABLE IF EXISTS t1;
|
||
Warnings:
|
||
Note 1051 Unknown table 't1'
|
||
CREATE TABLE t1 (a varchar(150) NOT NULL, KEY (a));
|
||
INSERT t1 VALUES ("can \tcan");
|
||
INSERT t1 VALUES ("can can");
|
||
INSERT t1 VALUES ("can");
|
||
SELECT * FROM t1;
|
||
a
|
||
can can
|
||
can
|
||
can can
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
create table t1 (a blob);
|
||
insert into t1 values('a '),('a');
|
||
select concat(a,'.') from t1 where a='a';
|
||
concat(a,'.')
|
||
a.
|
||
select concat(a,'.') from t1 where a='a ';
|
||
concat(a,'.')
|
||
a .
|
||
alter table t1 add key(a(2));
|
||
select concat(a,'.') from t1 where a='a';
|
||
concat(a,'.')
|
||
a.
|
||
select concat(a,'.') from t1 where a='a ';
|
||
concat(a,'.')
|
||
a .
|
||
drop table t1;
|
||
create table t1 (a int not null auto_increment primary key, b text not null, unique b (b(20)));
|
||
insert into t1 (b) values ('a'),('b'),('c');
|
||
select concat(b,'.') from t1;
|
||
concat(b,'.')
|
||
a.
|
||
b.
|
||
c.
|
||
update t1 set b='b ' where a=2;
|
||
update t1 set b='b ' where a > 1;
|
||
ERROR 23000: Duplicate entry 'b ' for key 'b'
|
||
insert into t1 (b) values ('b');
|
||
ERROR 23000: Duplicate entry 'b' for key 'b'
|
||
select * from t1;
|
||
a b
|
||
1 a
|
||
2 b
|
||
3 c
|
||
delete from t1 where b='b';
|
||
select a,concat(b,'.') from t1;
|
||
a concat(b,'.')
|
||
1 a.
|
||
3 c.
|
||
drop table t1;
|
||
create table t1 (a int not null);
|
||
create table t2 (a int not null, primary key (a));
|
||
insert into t1 values (1);
|
||
insert into t2 values (1),(2);
|
||
select sql_big_result distinct t1.a from t1,t2 order by t2.a;
|
||
a
|
||
1
|
||
select distinct t1.a from t1,t2 order by t2.a;
|
||
a
|
||
1
|
||
select sql_big_result distinct t1.a from t1,t2;
|
||
a
|
||
1
|
||
explain select sql_big_result distinct t1.a from t1,t2 order by t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 system NULL NULL NULL NULL 1 Using temporary
|
||
1 SIMPLE t2 index NULL PRIMARY 4 NULL 2 Using index; Distinct
|
||
explain select distinct t1.a from t1,t2 order by t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 system NULL NULL NULL NULL 1 Using temporary
|
||
1 SIMPLE t2 index NULL PRIMARY 4 NULL 2 Using index; Distinct
|
||
drop table t1,t2;
|
||
create table t1 (
|
||
c1 varchar(32),
|
||
key (c1)
|
||
) engine=myisam;
|
||
alter table t1 disable keys;
|
||
insert into t1 values ('a'), ('b');
|
||
select c1 from t1 order by c1 limit 1;
|
||
c1
|
||
a
|
||
drop table t1;
|
||
create table t1 (a int not null, primary key(a));
|
||
create table t2 (a int not null, b int not null, primary key(a,b));
|
||
insert into t1 values (1),(2),(3),(4),(5),(6);
|
||
insert into t2 values (1,1),(2,1);
|
||
lock tables t1 read local, t2 read local;
|
||
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
|
||
a a b
|
||
1 1 1
|
||
2 2 1
|
||
insert into t2 values(2,0);
|
||
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
|
||
a a b
|
||
1 1 1
|
||
2 2 1
|
||
drop table t1,t2;
|
||
CREATE TABLE t1 (c1 varchar(250) NOT NULL);
|
||
CREATE TABLE t2 (c1 varchar(250) NOT NULL, PRIMARY KEY (c1));
|
||
INSERT INTO t1 VALUES ('test000001'), ('test000002'), ('test000003');
|
||
INSERT INTO t2 VALUES ('test000002'), ('test000003'), ('test000004');
|
||
LOCK TABLES t1 READ LOCAL, t2 READ LOCAL;
|
||
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
|
||
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
|
||
t1c1 t2c1
|
||
INSERT INTO t2 VALUES ('test000001'), ('test000005');
|
||
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
|
||
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
|
||
t1c1 t2c1
|
||
DROP TABLE t1,t2;
|
||
CREATE TABLE t1 (`a` int(11) NOT NULL default '0', `b` int(11) NOT NULL default '0', UNIQUE KEY `a` USING RTREE (`a`,`b`)) ENGINE=MyISAM;
|
||
Got one of the listed errors
|
||
create table t1 (a int, b varchar(200), c text not null) checksum=1;
|
||
create table t2 (a int, b varchar(200), c text not null) checksum=0;
|
||
insert t1 values (1, "aaa", "bbb"), (NULL, "", "ccccc"), (0, NULL, "");
|
||
insert t2 select * from t1;
|
||
checksum table t1, t2, t3 quick;
|
||
Table Checksum
|
||
test.t1 2948697075
|
||
test.t2 NULL
|
||
test.t3 NULL
|
||
Warnings:
|
||
Error 1146 Table 'test.t3' doesn't exist
|
||
checksum table t1, t2, t3;
|
||
Table Checksum
|
||
test.t1 2948697075
|
||
test.t2 2948697075
|
||
test.t3 NULL
|
||
Warnings:
|
||
Error 1146 Table 'test.t3' doesn't exist
|
||
checksum table t1, t2, t3 extended;
|
||
Table Checksum
|
||
test.t1 2948697075
|
||
test.t2 2948697075
|
||
test.t3 NULL
|
||
Warnings:
|
||
Error 1146 Table 'test.t3' doesn't exist
|
||
drop table t1,t2;
|
||
create table t1 (a int, key (a));
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A NULL NULL NULL YES BTREE
|
||
alter table t1 disable keys;
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
|
||
create table t2 (a int);
|
||
set @@rand_seed1=31415926,@@rand_seed2=2718281828;
|
||
insert t1 select * from t2;
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
|
||
alter table t1 enable keys;
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 1000 NULL NULL YES BTREE
|
||
alter table t1 engine=heap;
|
||
alter table t1 disable keys;
|
||
Warnings:
|
||
Note 1031 Table storage engine for 't1' doesn't have this option
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a NULL 500 NULL NULL YES HASH
|
||
drop table t1,t2;
|
||
create table t1 ( a tinytext, b char(1), index idx (a(1),b) );
|
||
insert into t1 values (null,''), (null,'');
|
||
explain select count(*) from t1 where a is null;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref idx idx 4 const 1 Using where
|
||
select count(*) from t1 where a is null;
|
||
count(*)
|
||
2
|
||
drop table t1;
|
||
create table t1 (c1 int, c2 varchar(4) not null default '',
|
||
key(c2(3))) default charset=utf8;
|
||
insert into t1 values (1,'A'), (2, 'B'), (3, 'A');
|
||
update t1 set c2='A B' where c1=2;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
create table t1 (c1 int);
|
||
insert into t1 values (1),(2),(3),(4);
|
||
checksum table t1;
|
||
Table Checksum
|
||
test.t1 149057747
|
||
delete from t1 where c1 = 1;
|
||
create table t2 as select * from t1;
|
||
checksum table t1;
|
||
Table Checksum
|
||
test.t1 984116287
|
||
checksum table t2;
|
||
Table Checksum
|
||
test.t2 984116287
|
||
drop table t1, t2;
|
||
show variables like 'myisam_stats_method';
|
||
Variable_name Value
|
||
myisam_stats_method nulls_unequal
|
||
create table t1 (a int, key(a));
|
||
insert into t1 values (0),(1),(2),(3),(4);
|
||
insert into t1 select NULL from t1;
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 10 NULL NULL YES BTREE
|
||
insert into t1 values (11);
|
||
delete from t1 where a=11;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 10 NULL NULL YES BTREE
|
||
set myisam_stats_method=nulls_equal;
|
||
show variables like 'myisam_stats_method';
|
||
Variable_name Value
|
||
myisam_stats_method nulls_equal
|
||
insert into t1 values (11);
|
||
delete from t1 where a=11;
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 5 NULL NULL YES BTREE
|
||
insert into t1 values (11);
|
||
delete from t1 where a=11;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 5 NULL NULL YES BTREE
|
||
set myisam_stats_method=DEFAULT;
|
||
show variables like 'myisam_stats_method';
|
||
Variable_name Value
|
||
myisam_stats_method nulls_unequal
|
||
insert into t1 values (11);
|
||
delete from t1 where a=11;
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 10 NULL NULL YES BTREE
|
||
insert into t1 values (11);
|
||
delete from t1 where a=11;
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 10 NULL NULL YES BTREE
|
||
drop table t1;
|
||
set myisam_stats_method=nulls_ignored;
|
||
show variables like 'myisam_stats_method';
|
||
Variable_name Value
|
||
myisam_stats_method nulls_ignored
|
||
create table t1 (
|
||
a char(3), b char(4), c char(5), d char(6),
|
||
key(a,b,c,d)
|
||
);
|
||
insert into t1 values ('bcd','def1', NULL, 'zz');
|
||
insert into t1 values ('bcd','def2', NULL, 'zz');
|
||
insert into t1 values ('bce','def1', 'yuu', NULL);
|
||
insert into t1 values ('bce','def2', NULL, 'quux');
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 2 NULL NULL YES BTREE
|
||
t1 1 a 2 b A 4 NULL NULL YES BTREE
|
||
t1 1 a 3 c A 4 NULL NULL YES BTREE
|
||
t1 1 a 4 d A 4 NULL NULL YES BTREE
|
||
delete from t1;
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show index from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 0 NULL NULL YES BTREE
|
||
t1 1 a 2 b A 0 NULL NULL YES BTREE
|
||
t1 1 a 3 c A 0 NULL NULL YES BTREE
|
||
t1 1 a 4 d A 0 NULL NULL YES BTREE
|
||
set myisam_stats_method=DEFAULT;
|
||
drop table t1;
|
||
create table t1(
|
||
cip INT NOT NULL,
|
||
time TIME NOT NULL,
|
||
score INT NOT NULL DEFAULT 0,
|
||
bob TINYBLOB
|
||
);
|
||
insert into t1 (cip, time) VALUES (1, '00:01'), (2, '00:02'), (3,'00:03');
|
||
insert into t1 (cip, bob, time) VALUES (4, 'a', '00:04'), (5, 'b', '00:05'),
|
||
(6, 'c', '00:06');
|
||
select * from t1 where bob is null and cip=1;
|
||
cip time score bob
|
||
1 00:01:00 0 NULL
|
||
create index bug on t1 (bob(22), cip, time);
|
||
select * from t1 where bob is null and cip=1;
|
||
cip time score bob
|
||
1 00:01:00 0 NULL
|
||
drop table t1;
|
||
create table t1 (
|
||
id1 int not null auto_increment,
|
||
id2 int not null default '0',
|
||
t text not null,
|
||
primary key (id1),
|
||
key x (id2, t(32))
|
||
) engine=myisam;
|
||
insert into t1 (id2, t) values
|
||
(10, 'abc'), (10, 'abc'), (10, 'abc'),
|
||
(20, 'abc'), (20, 'abc'), (20, 'def'),
|
||
(10, 'abc'), (10, 'abc');
|
||
select count(*) from t1 where id2 = 10;
|
||
count(*)
|
||
5
|
||
select count(id1) from t1 where id2 = 10;
|
||
count(id1)
|
||
5
|
||
drop table t1;
|
||
CREATE TABLE t1(a TINYINT, KEY(a)) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES(1);
|
||
SELECT MAX(a) FROM t1 IGNORE INDEX(a);
|
||
MAX(a)
|
||
1
|
||
ALTER TABLE t1 DISABLE KEYS;
|
||
SELECT MAX(a) FROM t1;
|
||
MAX(a)
|
||
1
|
||
SELECT MAX(a) FROM t1 IGNORE INDEX(a);
|
||
MAX(a)
|
||
1
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1(a CHAR(9), b VARCHAR(7)) ENGINE=MyISAM;
|
||
INSERT INTO t1(a) VALUES('xxxxxxxxx'),('xxxxxxxxx');
|
||
UPDATE t1 AS ta1,t1 AS ta2 SET ta1.b='aaaaaa',ta2.b='bbbbbb';
|
||
SELECT * FROM t1;
|
||
a b
|
||
xxxxxxxxx bbbbbb
|
||
xxxxxxxxx bbbbbb
|
||
DROP TABLE t1;
|
||
SET @@myisam_repair_threads=2;
|
||
SHOW VARIABLES LIKE 'myisam_repair%';
|
||
Variable_name Value
|
||
myisam_repair_threads 2
|
||
CREATE TABLE t1 (
|
||
`_id` int(11) NOT NULL default '0',
|
||
`url` text,
|
||
`email` text,
|
||
`description` text,
|
||
`loverlap` int(11) default NULL,
|
||
`roverlap` int(11) default NULL,
|
||
`lneighbor_id` int(11) default NULL,
|
||
`rneighbor_id` int(11) default NULL,
|
||
`length_` int(11) default NULL,
|
||
`sequence` mediumtext,
|
||
`name` text,
|
||
`_obj_class` text NOT NULL,
|
||
PRIMARY KEY (`_id`),
|
||
UNIQUE KEY `sequence_name_index` (`name`(50)),
|
||
KEY (`length_`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
|
||
INSERT INTO t1 VALUES
|
||
(1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample1',''),
|
||
(2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample2',''),
|
||
(3,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample3',''),
|
||
(4,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample4',''),
|
||
(5,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample5',''),
|
||
(6,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample6',''),
|
||
(7,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample7',''),
|
||
(8,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample8',''),
|
||
(9,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample9','');
|
||
SELECT _id FROM t1;
|
||
_id
|
||
1
|
||
2
|
||
3
|
||
4
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
DELETE FROM t1 WHERE _id < 8;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Dynamic 2 # # # # 140 # # # # # #
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
OPTIMIZE TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 optimize status OK
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Dynamic 2 # # # # 0 # # # # # #
|
||
SELECT _id FROM t1;
|
||
_id
|
||
8
|
||
9
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
`_id` int(11) NOT NULL default '0',
|
||
`url` text,
|
||
`email` text,
|
||
`description` text,
|
||
`loverlap` int(11) default NULL,
|
||
`roverlap` int(11) default NULL,
|
||
`lneighbor_id` int(11) default NULL,
|
||
`rneighbor_id` int(11) default NULL,
|
||
`length_` int(11) default NULL,
|
||
`sequence` mediumtext,
|
||
`name` text,
|
||
`_obj_class` text NOT NULL,
|
||
PRIMARY KEY (`_id`),
|
||
UNIQUE KEY `sequence_name_index` (`name`(50)),
|
||
KEY (`length_`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
|
||
INSERT INTO t1 VALUES
|
||
(1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample1',''),
|
||
(2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample2',''),
|
||
(3,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample3',''),
|
||
(4,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample4',''),
|
||
(5,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample5',''),
|
||
(6,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample6',''),
|
||
(7,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample7',''),
|
||
(8,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample8',''),
|
||
(9,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample9','');
|
||
SELECT _id FROM t1;
|
||
_id
|
||
1
|
||
2
|
||
3
|
||
4
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
DELETE FROM t1 WHERE _id < 8;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Dynamic 2 # # # # 140 # # # # # #
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1 QUICK;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Dynamic 2 # # # # 140 # # # # # #
|
||
SELECT _id FROM t1;
|
||
_id
|
||
8
|
||
9
|
||
DROP TABLE t1;
|
||
SET @@myisam_repair_threads=1;
|
||
SHOW VARIABLES LIKE 'myisam_repair%';
|
||
Variable_name Value
|
||
myisam_repair_threads 1
|
||
CREATE TABLE t1(a VARCHAR(16));
|
||
INSERT INTO t1 VALUES('aaaaaaaa'),(NULL);
|
||
UPDATE t1 AS ta1, t1 AS ta2 SET ta1.a='aaaaaaaaaaaaaaaa';
|
||
SELECT * FROM t1;
|
||
a
|
||
aaaaaaaaaaaaaaaa
|
||
aaaaaaaaaaaaaaaa
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1(a INT);
|
||
INSERT INTO t1 VALUES(1),(2);
|
||
UPDATE t1,t1 AS t2 SET t1.a=t1.a+2 WHERE t1.a=t2.a-1;
|
||
SELECT * FROM t1 ORDER BY a;
|
||
a
|
||
2
|
||
3
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (c1 TEXT) AVG_ROW_LENGTH=70100 MAX_ROWS=4100100100;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Dynamic X X X 72057594037927935 X X X X X X latin1_swedish_ci X max_rows=4100100100 avg_row_length=70100
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (c1 TEXT NOT NULL, KEY c1 (c1(10))) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)), (CHAR(9,65)),
|
||
(''), (''), (''), (''),
|
||
(' B'), (' B'), (' B'), (' B');
|
||
SELECT DISTINCT COUNT(*) FROM t1 WHERE c1 = '';
|
||
COUNT(*)
|
||
4
|
||
SELECT DISTINCT length(c1), c1 FROM t1 WHERE c1 = '';
|
||
length(c1) c1
|
||
0
|
||
SELECT DISTINCT COUNT(*) FROM t1 IGNORE INDEX (c1) WHERE c1 = '';
|
||
COUNT(*)
|
||
4
|
||
SELECT DISTINCT length(c1), c1 FROM t1 IGNORE INDEX (c1) WHERE c1 = '';
|
||
length(c1) c1
|
||
0
|
||
SELECT DISTINCT length(c1), c1 FROM t1 ORDER BY c1;
|
||
length(c1) c1
|
||
0
|
||
2 A
|
||
2 B
|
||
DROP TABLE t1;
|
||
End of 4.1 tests
|
||
set storage_engine=MyISAM;
|
||
drop table if exists t1,t2,t3;
|
||
--- Testing varchar ---
|
||
--- Testing varchar ---
|
||
create table t1 (v varchar(10), c char(10), t text);
|
||
insert into t1 values('+ ', '+ ', '+ ');
|
||
set @a=repeat(' ',20);
|
||
insert into t1 values (concat('+',@a),concat('+',@a),concat('+',@a));
|
||
Warnings:
|
||
Note 1265 Data truncated for column 'v' at row 1
|
||
select concat('*',v,'*',c,'*',t,'*') from t1;
|
||
concat('*',v,'*',c,'*',t,'*')
|
||
*+ *+*+ *
|
||
*+ *+*+ *
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
create table t2 like t1;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
create table t3 select * from t1;
|
||
show create table t3;
|
||
Table Create Table
|
||
t3 CREATE TABLE `t3` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
alter table t1 modify c varchar(10);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` varchar(10) DEFAULT NULL,
|
||
`t` text
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
alter table t1 modify v char(10);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` char(10) DEFAULT NULL,
|
||
`c` varchar(10) DEFAULT NULL,
|
||
`t` text
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
alter table t1 modify t varchar(10);
|
||
Warnings:
|
||
Note 1265 Data truncated for column 't' at row 2
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` char(10) DEFAULT NULL,
|
||
`c` varchar(10) DEFAULT NULL,
|
||
`t` varchar(10) DEFAULT NULL
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select concat('*',v,'*',c,'*',t,'*') from t1;
|
||
concat('*',v,'*',c,'*',t,'*')
|
||
*+*+*+ *
|
||
*+*+*+ *
|
||
drop table t1,t2,t3;
|
||
create table t1 (v varchar(10), c char(10), t text, key(v), key(c), key(t(10)));
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text,
|
||
KEY `v` (`v`),
|
||
KEY `c` (`c`),
|
||
KEY `t` (`t`(10))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select count(*) from t1;
|
||
count(*)
|
||
270
|
||
insert into t1 values(concat('a',char(1)),concat('a',char(1)),concat('a',char(1)));
|
||
select count(*) from t1 where v='a';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where c='a';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where t='a';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v='a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where c='a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where t='a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v like 'a%';
|
||
count(*)
|
||
11
|
||
select count(*) from t1 where c like 'a%';
|
||
count(*)
|
||
11
|
||
select count(*) from t1 where t like 'a%';
|
||
count(*)
|
||
11
|
||
select count(*) from t1 where v like 'a %';
|
||
count(*)
|
||
9
|
||
explain select count(*) from t1 where v='a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 13 const # Using where; Using index
|
||
explain select count(*) from t1 where c='a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref c c 11 const # Using where; Using index
|
||
explain select count(*) from t1 where t='a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref t t 13 const # Using where
|
||
explain select count(*) from t1 where v like 'a%';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range v v 13 NULL # Using where; Using index
|
||
explain select count(*) from t1 where v between 'a' and 'a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 13 const # Using where; Using index
|
||
explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 13 const # Using where; Using index
|
||
alter table t1 add unique(v);
|
||
ERROR 23000: Duplicate entry '{ ' for key 'v_2'
|
||
alter table t1 add key(v);
|
||
select concat('*',v,'*',c,'*',t,'*') as qq from t1 where v='a';
|
||
qq
|
||
*a*a*a*
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
*a *a*a *
|
||
explain select * from t1 where v='a';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v,v_2 # 13 const # Using where
|
||
select v,count(*) from t1 group by v limit 10;
|
||
v count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select v,count(c) from t1 group by v limit 10;
|
||
v count(c)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result v,count(c) from t1 group by v limit 10;
|
||
v count(c)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select c,count(*) from t1 group by c limit 10;
|
||
c count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select c,count(t) from t1 group by c limit 10;
|
||
c count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result c,count(t) from t1 group by c limit 10;
|
||
c count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select t,count(*) from t1 group by t limit 10;
|
||
t count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select t,count(t) from t1 group by t limit 10;
|
||
t count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result t,count(t) from t1 group by t limit 10;
|
||
t count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
alter table t1 modify v varchar(300), drop key v, drop key v_2, add key v (v);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(300) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text,
|
||
KEY `c` (`c`),
|
||
KEY `t` (`t`(10)),
|
||
KEY `v` (`v`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select count(*) from t1 where v='a';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v='a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v like 'a%';
|
||
count(*)
|
||
11
|
||
select count(*) from t1 where v like 'a %';
|
||
count(*)
|
||
9
|
||
explain select count(*) from t1 where v='a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 303 const # Using where; Using index
|
||
explain select count(*) from t1 where v like 'a%';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range v v 303 NULL # Using where; Using index
|
||
explain select count(*) from t1 where v between 'a' and 'a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 303 const # Using where; Using index
|
||
explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 303 const # Using where; Using index
|
||
explain select * from t1 where v='a';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 303 const # Using where
|
||
select v,count(*) from t1 group by v limit 10;
|
||
v count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
alter table t1 drop key v, add key v (v(30));
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(300) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text,
|
||
KEY `c` (`c`),
|
||
KEY `t` (`t`(10)),
|
||
KEY `v` (`v`(30))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select count(*) from t1 where v='a';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v='a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
count(*)
|
||
10
|
||
select count(*) from t1 where v like 'a%';
|
||
count(*)
|
||
11
|
||
select count(*) from t1 where v like 'a %';
|
||
count(*)
|
||
9
|
||
explain select count(*) from t1 where v='a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 33 const # Using where
|
||
explain select count(*) from t1 where v like 'a%';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range v v 33 NULL # Using where
|
||
explain select count(*) from t1 where v between 'a' and 'a ';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 33 const # Using where
|
||
explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 33 const # Using where
|
||
explain select * from t1 where v='a';
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref v v 33 const # Using where
|
||
select v,count(*) from t1 group by v limit 10;
|
||
v count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
alter table t1 modify v varchar(600), drop key v, add key v (v);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(600) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text,
|
||
KEY `c` (`c`),
|
||
KEY `t` (`t`(10)),
|
||
KEY `v` (`v`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
select v,count(*) from t1 group by v limit 10;
|
||
v count(*)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
select sql_big_result v,count(t) from t1 group by v limit 10;
|
||
v count(t)
|
||
a 1
|
||
a 10
|
||
b 10
|
||
c 10
|
||
d 10
|
||
e 10
|
||
f 10
|
||
g 10
|
||
h 10
|
||
i 10
|
||
drop table t1;
|
||
create table t1 (a char(10), unique (a));
|
||
insert into t1 values ('a ');
|
||
insert into t1 values ('a ');
|
||
ERROR 23000: Duplicate entry 'a' for key 'a'
|
||
alter table t1 modify a varchar(10);
|
||
insert into t1 values ('a '),('a '),('a '),('a ');
|
||
ERROR 23000: Duplicate entry 'a ' for key 'a'
|
||
insert into t1 values ('a ');
|
||
ERROR 23000: Duplicate entry 'a ' for key 'a'
|
||
insert into t1 values ('a ');
|
||
ERROR 23000: Duplicate entry 'a ' for key 'a'
|
||
insert into t1 values ('a ');
|
||
ERROR 23000: Duplicate entry 'a ' for key 'a'
|
||
update t1 set a='a ' where a like 'a%';
|
||
select concat(a,'.') from t1;
|
||
concat(a,'.')
|
||
a .
|
||
update t1 set a='abc ' where a like 'a ';
|
||
select concat(a,'.') from t1;
|
||
concat(a,'.')
|
||
a .
|
||
update t1 set a='a ' where a like 'a %';
|
||
select concat(a,'.') from t1;
|
||
concat(a,'.')
|
||
a .
|
||
update t1 set a='a ' where a like 'a ';
|
||
select concat(a,'.') from t1;
|
||
concat(a,'.')
|
||
a .
|
||
drop table t1;
|
||
create table t1 (v varchar(10), c char(10), t text, key(v(5)), key(c(5)), key(t(5)));
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL,
|
||
`t` text,
|
||
KEY `v` (`v`(5)),
|
||
KEY `c` (`c`(5)),
|
||
KEY `t` (`t`(5))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (v char(10) character set utf8);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` char(10) CHARACTER SET utf8 DEFAULT NULL
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (v varchar(10), c char(10)) row_format=fixed;
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` varchar(10) DEFAULT NULL,
|
||
`c` char(10) DEFAULT NULL
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
|
||
insert into t1 values('a','a'),('a ','a ');
|
||
select concat('*',v,'*',c,'*') from t1;
|
||
concat('*',v,'*',c,'*')
|
||
*a*a*
|
||
*a *a*
|
||
drop table t1;
|
||
create table t1 (v varchar(65530), key(v(10)));
|
||
insert into t1 values(repeat('a',65530));
|
||
select length(v) from t1 where v=repeat('a',65530);
|
||
length(v)
|
||
65530
|
||
drop table t1;
|
||
create table t1(a int, b varchar(12), key ba(b, a));
|
||
insert into t1 values (1, 'A'), (20, NULL);
|
||
explain select * from t1 where a=20 and b is null;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 ref ba ba 20 const,const 1 Using where; Using index
|
||
select * from t1 where a=20 and b is null;
|
||
a b
|
||
20 NULL
|
||
drop table t1;
|
||
create table t1 (v varchar(65530), key(v));
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
drop table if exists t1;
|
||
create table t1 (v varchar(65536));
|
||
Warnings:
|
||
Note 1246 Converting column 'v' from VARCHAR to TEXT
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` mediumtext
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (v varchar(65530) character set utf8);
|
||
Warnings:
|
||
Note 1246 Converting column 'v' from VARCHAR to TEXT
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`v` mediumtext CHARACTER SET utf8
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (v varchar(65535));
|
||
ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. You have to change some columns to TEXT or BLOBs
|
||
set storage_engine=MyISAM;
|
||
set @save_concurrent_insert=@@concurrent_insert;
|
||
set global concurrent_insert=1;
|
||
create table t1 (a int);
|
||
insert into t1 values (1),(2),(3),(4),(5);
|
||
lock table t1 read local;
|
||
insert into t1 values(6),(7);
|
||
unlock tables;
|
||
delete from t1 where a>=3 and a<=4;
|
||
lock table t1 read local;
|
||
set global concurrent_insert=2;
|
||
insert into t1 values (8),(9);
|
||
unlock tables;
|
||
insert into t1 values (10),(11),(12);
|
||
select * from t1;
|
||
a
|
||
1
|
||
2
|
||
11
|
||
10
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
12
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
create table t1 (a int, b varchar(30) default "hello");
|
||
insert into t1 (a) values (1),(2),(3),(4),(5);
|
||
lock table t1 read local;
|
||
insert into t1 (a) values(6),(7);
|
||
unlock tables;
|
||
delete from t1 where a>=3 and a<=4;
|
||
lock table t1 read local;
|
||
set global concurrent_insert=2;
|
||
insert into t1 (a) values (8),(9);
|
||
unlock tables;
|
||
insert into t1 (a) values (10),(11),(12);
|
||
select a from t1;
|
||
a
|
||
1
|
||
2
|
||
11
|
||
10
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
12
|
||
check table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
drop table t1;
|
||
set global concurrent_insert=@save_concurrent_insert;
|
||
create table t1 (a int, key(a));
|
||
insert into t1 values (1),(2),(3),(4),(NULL),(NULL),(NULL),(NULL);
|
||
analyze table t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 analyze status OK
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 8 NULL NULL YES BTREE
|
||
alter table t1 disable keys;
|
||
alter table t1 enable keys;
|
||
show keys from t1;
|
||
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
|
||
t1 1 a 1 a A 8 NULL NULL YES BTREE
|
||
drop table t1;
|
||
create table t1 (c1 int) engine=myisam pack_keys=0;
|
||
create table t2 (c1 int) engine=myisam pack_keys=1;
|
||
create table t3 (c1 int) engine=myisam pack_keys=default;
|
||
create table t4 (c1 int) engine=myisam pack_keys=2;
|
||
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2' at line 1
|
||
drop table t1, t2, t3;
|
||
CREATE TABLE t1(a INT, b INT, KEY inx (a), UNIQUE KEY uinx (b)) ENGINE=MyISAM;
|
||
INSERT INTO t1(a,b) VALUES (1,1),(2,2),(3,3),(4,4),(5,5);
|
||
SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
|
||
a
|
||
1
|
||
ALTER TABLE t1 DISABLE KEYS;
|
||
SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
|
||
a
|
||
1
|
||
SELECT a FROM t1 USE INDEX (inx) WHERE a=1;
|
||
a
|
||
1
|
||
SELECT b FROM t1 FORCE INDEX (uinx) WHERE b=1;
|
||
b
|
||
1
|
||
SELECT b FROM t1 USE INDEX (uinx) WHERE b=1;
|
||
b
|
||
1
|
||
SELECT a FROM t1 FORCE INDEX (inx,uinx) WHERE a=1;
|
||
a
|
||
1
|
||
ALTER TABLE t1 ENABLE KEYS;
|
||
SELECT a FROM t1 FORCE INDEX (inx) WHERE a=1;
|
||
a
|
||
1
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (c1 INT, c2 INT, UNIQUE INDEX (c1), INDEX (c2)) ENGINE=MYISAM;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 0 # # # 1024 # # # # # # #
|
||
INSERT INTO t1 VALUES (1,1);
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 1 # # # 3072 # # # # # # #
|
||
ALTER TABLE t1 DISABLE KEYS;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 1 # # # 3072 # # # # # # #
|
||
ALTER TABLE t1 ENABLE KEYS;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 1 # # # 3072 # # # # # # #
|
||
ALTER TABLE t1 DISABLE KEYS;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 1 # # # 3072 # # # # # # #
|
||
ALTER TABLE t1 ENABLE KEYS;
|
||
SHOW TABLE STATUS LIKE 't1';
|
||
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
|
||
t1 MyISAM 10 Fixed 1 # # # 3072 # # # # # # #
|
||
# Enable keys with parallel repair
|
||
SET @@myisam_repair_threads=2;
|
||
ALTER TABLE t1 DISABLE KEYS;
|
||
ALTER TABLE t1 ENABLE KEYS;
|
||
SET @@myisam_repair_threads=1;
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (id int NOT NULL, ref int NOT NULL, INDEX (id)) ENGINE=MyISAM;
|
||
CREATE TABLE t2 LIKE t1;
|
||
INSERT INTO t2 (id, ref) VALUES (1,3), (2,1), (3,2), (4,5), (4,4);
|
||
INSERT INTO t1 SELECT * FROM t2;
|
||
SELECT * FROM t1 AS a INNER JOIN t1 AS b USING (id) WHERE a.ref < b.ref;
|
||
id ref ref
|
||
4 4 5
|
||
SELECT * FROM t1;
|
||
id ref
|
||
1 3
|
||
2 1
|
||
3 2
|
||
4 5
|
||
4 4
|
||
DELETE FROM a USING t1 AS a INNER JOIN t1 AS b USING (id) WHERE a.ref < b.ref;
|
||
SELECT * FROM t1;
|
||
id ref
|
||
1 3
|
||
2 1
|
||
3 2
|
||
4 5
|
||
DROP TABLE t1, t2;
|
||
CREATE TABLE t1 (a INT) ENGINE=MyISAM CHECKSUM=1 ROW_FORMAT=DYNAMIC;
|
||
INSERT INTO t1 VALUES (0);
|
||
UPDATE t1 SET a=1;
|
||
SELECT a FROM t1;
|
||
a
|
||
1
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
INSERT INTO t1 VALUES (0), (5), (4), (2);
|
||
UPDATE t1 SET a=2;
|
||
SELECT a FROM t1;
|
||
a
|
||
2
|
||
2
|
||
2
|
||
2
|
||
2
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
#
|
||
# Bug #49465: valgrind warnings and incorrect live checksum...
|
||
#
|
||
CREATE TABLE t1(
|
||
a VARCHAR(1), b VARCHAR(1), c VARCHAR(1),
|
||
f VARCHAR(1), g VARCHAR(1), h VARCHAR(1),
|
||
i VARCHAR(1), j VARCHAR(1), k VARCHAR(1)) CHECKSUM=1;
|
||
INSERT INTO t1 VALUES('', '', '', '', '', '', '', '', '');
|
||
CHECKSUM TABLE t1 QUICK;
|
||
Table Checksum
|
||
test.t1 467455460
|
||
CHECKSUM TABLE t1 EXTENDED;
|
||
Table Checksum
|
||
test.t1 467455460
|
||
DROP TABLE t1;
|
||
#
|
||
# BUG#48438 - crash with error in unioned query against merge table and view...
|
||
#
|
||
SET GLOBAL table_open_cache=3;
|
||
CREATE TABLE t1(a INT);
|
||
SELECT 1 FROM t1 AS a1, t1 AS a2, t1 AS a3, t1 AS a4 FOR UPDATE;
|
||
1
|
||
SELECT TABLE_ROWS, DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES
|
||
WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
|
||
TABLE_ROWS DATA_LENGTH
|
||
0 0
|
||
DROP TABLE t1;
|
||
SET GLOBAL table_open_cache=DEFAULT;
|
||
End of 5.0 tests
|
||
create table t1 (a int not null, key `a` (a) key_block_size=1024);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null, key `a` (a) key_block_size=2048);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=2048
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a varchar(2048), key `a` (a));
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`(1000))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a varchar(2048), key `a` (a) key_block_size=1024);
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=4096
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=1024;
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`),
|
||
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=4096
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=1024
|
||
alter table t1 key_block_size=2048;
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024,
|
||
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=4096
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=2048
|
||
alter table t1 add c int, add key (c);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
`c` int(11) DEFAULT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024,
|
||
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=4096,
|
||
KEY `c` (`c`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=2048
|
||
alter table t1 key_block_size=0;
|
||
alter table t1 add d int, add key (d);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
`c` int(11) DEFAULT NULL,
|
||
`d` int(11) DEFAULT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024,
|
||
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=4096,
|
||
KEY `c` (`c`) KEY_BLOCK_SIZE=2048,
|
||
KEY `d` (`d`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=8192;
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`),
|
||
KEY `b` (`b`(1000))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=8192
|
||
drop table t1;
|
||
create table t1 (a int not null, b varchar(2048), key (a) key_block_size=1024, key(b)) key_block_size=8192;
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024,
|
||
KEY `b` (`b`(1000))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=8192
|
||
drop table t1;
|
||
create table t1 (a int not null, b int, key (a) key_block_size=1024, key(b) key_block_size=8192) key_block_size=16384;
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
`b` int(11) DEFAULT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024,
|
||
KEY `b` (`b`) KEY_BLOCK_SIZE=8192
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1 KEY_BLOCK_SIZE=16384
|
||
drop table t1;
|
||
create table t1 (a int not null, key `a` (a) key_block_size=512);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=1024
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
|
||
Warnings:
|
||
Warning 1071 Specified key was too long; max key length is 1000 bytes
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` varchar(2048) DEFAULT NULL,
|
||
KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=4096
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null, key `a` (a) key_block_size=1025);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` int(11) NOT NULL,
|
||
KEY `a` (`a`) KEY_BLOCK_SIZE=2048
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null, key key_block_size=1024 (a));
|
||
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '=1024 (a))' at line 1
|
||
create table t1 (a int not null, key `a` key_block_size=1024 (a));
|
||
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key_block_size=1024 (a))' at line 1
|
||
CREATE TABLE t1 (
|
||
c1 INT,
|
||
c2 VARCHAR(300),
|
||
KEY (c1) KEY_BLOCK_SIZE 1024,
|
||
KEY (c2) KEY_BLOCK_SIZE 8192
|
||
);
|
||
INSERT INTO t1 VALUES (10, REPEAT('a', CEIL(RAND(10) * 300))),
|
||
(11, REPEAT('b', CEIL(RAND() * 300))),
|
||
(12, REPEAT('c', CEIL(RAND() * 300))),
|
||
(13, REPEAT('d', CEIL(RAND() * 300))),
|
||
(14, REPEAT('e', CEIL(RAND() * 300))),
|
||
(15, REPEAT('f', CEIL(RAND() * 300))),
|
||
(16, REPEAT('g', CEIL(RAND() * 300))),
|
||
(17, REPEAT('h', CEIL(RAND() * 300))),
|
||
(18, REPEAT('i', CEIL(RAND() * 300))),
|
||
(19, REPEAT('j', CEIL(RAND() * 300))),
|
||
(20, REPEAT('k', CEIL(RAND() * 300))),
|
||
(21, REPEAT('l', CEIL(RAND() * 300))),
|
||
(22, REPEAT('m', CEIL(RAND() * 300))),
|
||
(23, REPEAT('n', CEIL(RAND() * 300))),
|
||
(24, REPEAT('o', CEIL(RAND() * 300))),
|
||
(25, REPEAT('p', CEIL(RAND() * 300))),
|
||
(26, REPEAT('q', CEIL(RAND() * 300))),
|
||
(27, REPEAT('r', CEIL(RAND() * 300))),
|
||
(28, REPEAT('s', CEIL(RAND() * 300))),
|
||
(29, REPEAT('t', CEIL(RAND() * 300))),
|
||
(30, REPEAT('u', CEIL(RAND() * 300))),
|
||
(31, REPEAT('v', CEIL(RAND() * 300))),
|
||
(32, REPEAT('w', CEIL(RAND() * 300))),
|
||
(33, REPEAT('x', CEIL(RAND() * 300))),
|
||
(34, REPEAT('y', CEIL(RAND() * 300))),
|
||
(35, REPEAT('z', CEIL(RAND() * 300)));
|
||
INSERT INTO t1 SELECT * FROM t1;
|
||
INSERT INTO t1 SELECT * FROM t1;
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
DELETE FROM t1 WHERE c1 >= 10;
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(130),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES(REPEAT("a",128), 'b');
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(130),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES(REPEAT("a",128), 'b');
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(130),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM;
|
||
INSERT INTO t1 VALUES(REPEAT("a",128), 'b');
|
||
INSERT INTO t1 VALUES('b', 'b');
|
||
INSERT INTO t1 VALUES('c', 'b');
|
||
DELETE FROM t1 WHERE c1='b';
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
2
|
||
OPTIMIZE TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 optimize status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
2
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(130),
|
||
c2 VARCHAR(1),
|
||
KEY (c1)
|
||
) ENGINE=MyISAM;
|
||
# Insert 100 rows. Query log disabled.
|
||
UPDATE t1 SET c1=REPEAT("a",128) LIMIT 90;
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
100
|
||
ALTER TABLE t1 ENGINE=MyISAM;
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
100
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(50),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM DEFAULT CHARSET UTF8;
|
||
INSERT INTO t1 VALUES(REPEAT(_utf8 x'e0ae85',43), 'b');
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(50),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM DEFAULT CHARSET UTF8;
|
||
INSERT INTO t1 VALUES(REPEAT(_utf8 x'e0ae85',43), 'b');
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
REPAIR TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
1
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(50),
|
||
c2 VARCHAR(1)
|
||
) ENGINE=MyISAM DEFAULT CHARSET UTF8;
|
||
INSERT INTO t1 VALUES(REPEAT(_utf8 x'e0ae85',43), 'b');
|
||
INSERT INTO t1 VALUES('b', 'b');
|
||
INSERT INTO t1 VALUES('c', 'b');
|
||
DELETE FROM t1 WHERE c1='b';
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
2
|
||
OPTIMIZE TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 optimize status OK
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
2
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 CHAR(50),
|
||
c2 VARCHAR(1),
|
||
KEY (c1)
|
||
) ENGINE=MyISAM DEFAULT CHARSET UTF8;
|
||
# Insert 100 rows. Query log disabled.
|
||
UPDATE t1 SET c1=REPEAT(_utf8 x'e0ae85',43) LIMIT 90;
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
100
|
||
ALTER TABLE t1 ENGINE=MyISAM;
|
||
SELECT COUNT(*) FROM t1;
|
||
COUNT(*)
|
||
100
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
CHECK TABLE t1 EXTENDED;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c1 VARCHAR(10) NOT NULL,
|
||
c2 CHAR(10) DEFAULT NULL,
|
||
c3 VARCHAR(10) NOT NULL,
|
||
KEY (c1),
|
||
KEY (c2)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=utf8 PACK_KEYS=0;
|
||
|
||
MyISAM file: MYSQLD_DATADIR/test/t1
|
||
Record format: Packed
|
||
Character set: utf8_general_ci (33)
|
||
Data records: 0 Deleted blocks: 0
|
||
Recordlength: 94
|
||
|
||
table description:
|
||
Key Start Len Index Type
|
||
1 2 30 multip. varchar
|
||
2 33 30 multip. char NULL
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1 (
|
||
c INT,
|
||
d bit(1),
|
||
e INT,
|
||
f VARCHAR(1),
|
||
g BIT(1),
|
||
h BIT(1),
|
||
KEY (h, d, e, g)
|
||
);
|
||
INSERT INTO t1 VALUES
|
||
( 3, 1, 1, 'a', 0, 0 ),
|
||
( 3, 1, 5, 'a', 0, 0 ),
|
||
( 10, 1, 2, 'a', 0, 1 ),
|
||
( 10, 1, 3, 'a', 0, 1 ),
|
||
( 10, 1, 4, 'a', 0, 1 );
|
||
SELECT f FROM t1 WHERE d = 1 AND e = 2 AND g = 0 AND h = 1;
|
||
f
|
||
a
|
||
SELECT h+0, d + 0, e, g + 0 FROM t1;
|
||
h+0 d + 0 e g + 0
|
||
0 1 1 0
|
||
0 1 5 0
|
||
1 1 2 0
|
||
1 1 3 0
|
||
1 1 4 0
|
||
DROP TABLE t1;
|
||
#
|
||
# Test of BUG#35570 CHECKSUM TABLE unreliable if LINESTRING field
|
||
# (same content / differen checksum)
|
||
#
|
||
CREATE TABLE t1 (line LINESTRING NOT NULL) engine=myisam;
|
||
INSERT INTO t1 VALUES (GeomFromText("POINT(0 0)"));
|
||
checksum table t1;
|
||
Table Checksum
|
||
test.t1 326284887
|
||
CREATE TABLE t2 (line LINESTRING NOT NULL) engine=myisam;
|
||
INSERT INTO t2 VALUES (GeomFromText("POINT(0 0)"));
|
||
checksum table t2;
|
||
Table Checksum
|
||
test.t2 326284887
|
||
CREATE TABLE t3 select * from t1;
|
||
checksum table t3;
|
||
Table Checksum
|
||
test.t3 326284887
|
||
drop table t1,t2,t3;
|
||
CREATE TABLE t1(a INT, b CHAR(10), KEY(a), KEY(b));
|
||
INSERT INTO t1 VALUES(1,'0'),(2,'0'),(3,'0'),(4,'0'),(5,'0'),
|
||
(6,'0'),(7,'0');
|
||
INSERT INTO t1 SELECT a+10,b FROM t1;
|
||
INSERT INTO t1 SELECT a+20,b FROM t1;
|
||
INSERT INTO t1 SELECT a+40,b FROM t1;
|
||
INSERT INTO t1 SELECT a+80,b FROM t1;
|
||
INSERT INTO t1 SELECT a+160,b FROM t1;
|
||
INSERT INTO t1 SELECT a+320,b FROM t1;
|
||
INSERT INTO t1 SELECT a+640,b FROM t1;
|
||
INSERT INTO t1 SELECT a+1280,b FROM t1;
|
||
INSERT INTO t1 SELECT a+2560,b FROM t1;
|
||
INSERT INTO t1 SELECT a+5120,b FROM t1;
|
||
SET myisam_sort_buffer_size=4;
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect myisam_sort_buffer_size value: '4'
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair error myisam_sort_buffer_size is too small
|
||
test.t1 repair warning Number of rows changed from 0 to 7168
|
||
test.t1 repair status OK
|
||
SET myisam_repair_threads=2;
|
||
REPAIR TABLE t1;
|
||
SET myisam_repair_threads=@@global.myisam_repair_threads;
|
||
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
#
|
||
# BUG#49628 - corrupt table after legal SQL, LONGTEXT column
|
||
#
|
||
CREATE TABLE t1(a INT, b LONGTEXT, UNIQUE(a));
|
||
REPLACE INTO t1 VALUES
|
||
(1, REPEAT('a', 129015)),(1, NULL),
|
||
(2, NULL),(3, NULL),(4, NULL),(5, NULL),(6, NULL),(7, NULL),
|
||
(1, REPEAT('b', 129016)),(1, NULL),
|
||
(1, REPEAT('c', 129015)),(1, REPEAT('d', 129015));
|
||
CHECK TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 check status OK
|
||
DROP TABLE t1;
|
||
#
|
||
# Bug#51304: checksum table gives different results
|
||
# for same data when using bit fields
|
||
#
|
||
CREATE TABLE t1(a INT, b BIT(1));
|
||
INSERT INTO t1 VALUES(1, 0), (2, 1);
|
||
CREATE TABLE t2 SELECT * FROM t1;
|
||
CHECKSUM TABLE t1 EXTENDED;
|
||
Table Checksum
|
||
test.t1 3775188275
|
||
CHECKSUM TABLE t2 EXTENDED;
|
||
Table Checksum
|
||
test.t2 3775188275
|
||
CHECKSUM TABLE t3 EXTENDED;
|
||
Table Checksum
|
||
test.t3 3775188275
|
||
DROP TABLE t1, t2, t3;
|
||
#
|
||
# BUG#51307 - widespread corruption with partitions and insert...select
|
||
#
|
||
CREATE TABLE t1(a CHAR(255), KEY(a));
|
||
SELECT * FROM t1, t1 AS a1;
|
||
a a
|
||
SET myisam_sort_buffer_size=4;
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect myisam_sort_buffer_size value: '4'
|
||
INSERT INTO t1 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'),('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'),('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'),('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'),('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'),('0'),('0'),('0'),('0'),('0'),
|
||
('0'),('0'),('0'),('0'),('0'),('0'),('0');
|
||
Warnings:
|
||
Error 1034 myisam_sort_buffer_size is too small
|
||
Error 1034 Number of rows changed from 0 to 157
|
||
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
|
||
INSERT INTO t1 VALUES('1');
|
||
SELECT * FROM t1, t1 AS a1 WHERE t1.a=1 AND a1.a=1;
|
||
a a
|
||
1 1
|
||
DROP TABLE t1;
|
||
#
|
||
# BUG#47444 - --myisam_repair_threads>1can result in all index
|
||
# cardinalities=1
|
||
#
|
||
SET myisam_repair_threads=2;
|
||
SET myisam_sort_buffer_size=4096;
|
||
CREATE TABLE t1(a CHAR(255), KEY(a), KEY(a), KEY(a));
|
||
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9),(0),(1),(2),(3);
|
||
REPAIR TABLE t1;
|
||
Table Op Msg_type Msg_text
|
||
test.t1 repair status OK
|
||
SELECT CARDINALITY FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
|
||
CARDINALITY
|
||
14
|
||
14
|
||
14
|
||
DROP TABLE t1;
|
||
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
|
||
SET myisam_repair_threads=@@global.myisam_repair_threads;
|
||
End of 5.1 tests
|