mirror of
https://github.com/MariaDB/server.git
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2954cc67a9
after introducing Item_equal. BitKeeper/etc/ignore: Added mysql-test/r/index_merge_load.result mysql-test/t/index_merge.load to the ignore list
317 lines
14 KiB
Text
317 lines
14 KiB
Text
drop table if exists t0, t1, t2, t3;
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create table t0
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(
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key1 int not null,
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INDEX i1(key1),
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);
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alter table t0 add key2 int not null, add index i2(key2);
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alter table t0 add key3 int not null, add index i3(key3);
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alter table t0 add key4 int not null, add index i4(key4);
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alter table t0 add key5 int not null, add index i5(key5);
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alter table t0 add key6 int not null, add index i6(key6);
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alter table t0 add key7 int not null, add index i7(key7);
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alter table t0 add key8 int not null, add index i8(key8);
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update t0 set key2=key1,key3=key1,key4=key1,key5=key1,key6=key1,key7=key1,key8=1024-key1;
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analyze table t0;
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Table Op Msg_type Msg_text
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test.t0 analyze status OK
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explain select * from t0 where key1 < 3 or key1 > 1020;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 range i1 i1 4 NULL 55 Using where
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explain
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select * from t0 where key1 < 3 or key2 > 1020;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 31 Using where
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select * from t0 where key1 < 3 or key2 > 1020;
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key1 key2 key3 key4 key5 key6 key7 key8
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1 1 1 1 1 1 1 1023
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2 2 2 2 2 2 2 1022
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1021 1021 1021 1021 1021 1021 1021 3
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1022 1022 1022 1022 1022 1022 1022 2
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1023 1023 1023 1023 1023 1023 1023 1
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1024 1024 1024 1024 1024 1024 1024 0
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explain select * from t0 where key1 < 3 or key2 <4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 7 Using where
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explain
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select * from t0 where (key1 > 30 and key1<35) or (key2 >32 and key2 < 40);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 9 Using where
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select * from t0 where (key1 > 30 and key1<35) or (key2 >32 and key2 < 40);
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key1 key2 key3 key4 key5 key6 key7 key8
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31 31 31 31 31 31 31 993
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32 32 32 32 32 32 32 992
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33 33 33 33 33 33 33 991
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34 34 34 34 34 34 34 990
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35 35 35 35 35 35 35 989
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36 36 36 36 36 36 36 988
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37 37 37 37 37 37 37 987
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38 38 38 38 38 38 38 986
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39 39 39 39 39 39 39 985
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explain select * from t0 ignore index (i2) where key1 < 3 or key2 <4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1 NULL NULL NULL 1024 Using where
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explain select * from t0 where (key1 < 3 or key2 <4) and key3 = 50;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ref i1,i2,i3 i3 4 const 1 Using where
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explain select * from t0 use index (i1,i2) where (key1 < 3 or key2 <4) and key3 = 50;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 7 Using where
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explain select * from t0 where (key1 > 1 or key2 > 2);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1,i2 NULL NULL NULL 1024 Using where
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explain select * from t0 force index (i1,i2) where (key1 > 1 or key2 > 2);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 1024 Using where
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explain
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select * from t0 where key1<3 or key2<3 or (key1>5 and key1<8) or
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(key1>10 and key1<12) or (key2>100 and key2<110);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 17 Using where
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explain select * from t0 where key2 = 45 or key1 <=> null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 range i1,i2 i2 4 NULL 1 Using where
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explain select * from t0 where key2 = 45 or key1 is not null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1,i2 NULL NULL NULL 1024 Using where
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explain select * from t0 where key2 = 45 or key1 is null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ref i2 i2 4 const 1
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explain select * from t0 where key2=10 or key3=3 or key4 <=> null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i2,i3,i4 i2,i3 4,4 NULL 2 Using where
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explain select * from t0 where key2=10 or key3=3 or key4 is null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i2,i3 i2,i3 4,4 NULL 2 Using where
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explain select key1 from t0 where (key1 <=> null) or (key2 < 5) or
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(key3=10) or (key4 <=> null);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i4 i2,i3 4,4 NULL 6 Using where
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explain select key1 from t0 where (key1 <=> null) or (key1 < 5) or
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(key3=10) or (key4 <=> null);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i3,i4 i1,i3 4,4 NULL 5 Using where
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explain select * from t0 where
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(key1 < 3 or key2 < 3) and (key3 < 4 or key4 < 4) and (key5 < 5 or key6 < 5);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i4,i5,i6 i1,i2 4,4 NULL 6 Using where
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explain
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select * from t0 where (key1 < 3 or key2 < 6) and (key1 < 7 or key3 < 4);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3 i1,i2 4,4 NULL 9 Using where
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select * from t0 where (key1 < 3 or key2 < 6) and (key1 < 7 or key3 < 4);
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key1 key2 key3 key4 key5 key6 key7 key8
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1 1 1 1 1 1 1 1023
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2 2 2 2 2 2 2 1022
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3 3 3 3 3 3 3 1021
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4 4 4 4 4 4 4 1020
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5 5 5 5 5 5 5 1019
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explain select * from t0 where
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(key1 < 3 or key2 < 3) and (key3 < 4 or key4 < 4) and (key5 < 2 or key6 < 2);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i4,i5,i6 i5,i6 4,4 NULL 4 Using where
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explain select * from t0 where
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(key1 < 3 or key2 < 3) and (key3 < 100);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 range i1,i2,i3 i3 4 NULL 96 Using where
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explain select * from t0 where
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(key1 < 3 or key2 < 3) and (key3 < 1000);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1,i2,i3 NULL NULL NULL 1024 Using where
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explain select * from t0 where
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((key1 < 4 or key2 < 4) and (key2 <5 or key3 < 4))
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or
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key2 > 5;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1,i2,i3 NULL NULL NULL 1024 Using where
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explain select * from t0 where
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((key1 < 4 or key2 < 4) and (key2 <5 or key3 < 4))
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or
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key1 < 7;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3 i1,i2 4,4 NULL 10 Using where
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select * from t0 where
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((key1 < 4 or key2 < 4) and (key2 <5 or key3 < 4))
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or
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key1 < 7;
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key1 key2 key3 key4 key5 key6 key7 key8
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1 1 1 1 1 1 1 1023
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2 2 2 2 2 2 2 1022
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3 3 3 3 3 3 3 1021
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4 4 4 4 4 4 4 1020
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5 5 5 5 5 5 5 1019
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6 6 6 6 6 6 6 1018
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explain select * from t0 where
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((key1 < 4 or key2 < 4) and (key3 <5 or key5 < 4))
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or
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((key5 < 5 or key6 < 6) and (key7 <7 or key8 < 4));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i5,i6,i7,i8 i1,i2,i5,i6 4,4,4,4 NULL 19 Using where
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explain select * from t0 where
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((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
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or
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((key7 <7 or key8 < 4) and (key5 < 5 or key6 < 6));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i5,i6,i7,i8 i3,i5,i7,i8 4,4,4,4 NULL 21 Using where
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explain select * from t0 where
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((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
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or
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((key3 <7 or key5 < 2) and (key5 < 5 or key6 < 6));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i5,i6 i3,i5 4,4 NULL 11 Using where
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explain select * from t0 where
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((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
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or
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(((key3 <7 and key7 < 6) or key5 < 2) and (key5 < 5 or key6 < 6));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i5,i6,i7 i3,i5 4,4 NULL 11 Using where
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explain select * from t0 where
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((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
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or
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((key3 >=5 or key5 < 2) and (key5 < 5 or key6 < 6));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ALL i1,i2,i3,i5,i6 NULL NULL NULL 1024 Using where
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explain select * from t0 force index(i1, i2, i3, i4, i5, i6 ) where
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((key3 <5 or key5 < 4) and (key1 < 4 or key2 < 4))
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or
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((key3 >=5 or key5 < 2) and (key5 < 5 or key6 < 6));
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2,i3,i5,i6 i3,i5 0,4 NULL 1024 Using where
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select * from t0 where key1 < 5 or key8 < 4 order by key1;
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key1 key2 key3 key4 key5 key6 key7 key8
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1 1 1 1 1 1 1 1023
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2 2 2 2 2 2 2 1022
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3 3 3 3 3 3 3 1021
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4 4 4 4 4 4 4 1020
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1021 1021 1021 1021 1021 1021 1021 3
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1022 1022 1022 1022 1022 1022 1022 2
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1023 1023 1023 1023 1023 1023 1023 1
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1024 1024 1024 1024 1024 1024 1024 0
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explain
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select * from t0 where key1 < 5 or key8 < 4 order by key1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i8 i1,i8 4,4 NULL 9 Using where; Using filesort
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create table t2 like t0;
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insert into t2 select * from t0;
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alter table t2 add index i1_3(key1, key3);
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alter table t2 add index i2_3(key2, key3);
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alter table t2 drop index i1;
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alter table t2 drop index i2;
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alter table t2 add index i321(key3, key2, key1);
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explain select key3 from t2 where key1 = 100 or key2 = 100;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index_merge i1_3,i2_3 i1_3,i2_3 4,4 NULL 2 Using where
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explain select key3 from t2 where key1 <100 or key2 < 100;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index i1_3,i2_3 i321 12 NULL 1024 Using where; Using index
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explain select key7 from t2 where key1 <100 or key2 < 100;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL i1_3,i2_3 NULL NULL NULL 1024 Using where
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create table t4 (
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key1a int not null,
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key1b int not null,
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key2 int not null,
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key2_1 int not null,
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key2_2 int not null,
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key3 int not null,
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index i1a (key1a, key1b),
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index i1b (key1b, key1a),
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index i2_1(key2, key2_1),
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index i2_2(key2, key2_1),
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);
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insert into t4 select key1,key1,key1 div 10, key1 % 10, key1 % 10, key1 from t0;
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select * from t4 where key1a = 3 or key1b = 4;
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key1a key1b key2 key2_1 key2_2 key3
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3 3 0 3 3 3
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4 4 0 4 4 4
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explain select * from t4 where key1a = 3 or key1b = 4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 index_merge i1a,i1b i1a,i1b 4,4 NULL 2 Using where
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explain select * from t4 where key2 = 1 and (key2_1 = 1 or key3 = 5);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 ref i2_1,i2_2 i2_1 4 const 10 Using where
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explain select * from t4 where key2 = 1 and (key2_1 = 1 or key2_2 = 5);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 ref i2_1,i2_2 i2_1 4 const 10 Using where
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explain select * from t4 where key2_1 = 1 or key2_2 = 5;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t4 ALL NULL NULL NULL NULL 1024 Using where
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create table t1 like t0;
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insert into t1 select * from t0;
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explain select * from t0 left join t1 on (t0.key1=t1.key1)
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where t0.key1=3 or t0.key2=4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 2 Using where
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1 SIMPLE t1 ref i1 i1 4 test.t0.key1 1
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select * from t0 left join t1 on (t0.key1=t1.key1)
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where t0.key1=3 or t0.key2=4;
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key1 key2 key3 key4 key5 key6 key7 key8 key1 key2 key3 key4 key5 key6 key7 key8
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3 3 3 3 3 3 3 1021 3 3 3 3 3 3 3 1021
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4 4 4 4 4 4 4 1020 4 4 4 4 4 4 4 1020
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explain
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select * from t0,t1 where (t0.key1=t1.key1) and ( t0.key1=3 or t0.key2=4);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 index_merge i1,i2 i1,i2 4,4 NULL 2 Using where
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1 SIMPLE t1 ref i1 i1 4 test.t0.key1 1
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explain
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select * from t0,t1 where (t0.key1=t1.key1) and
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(t0.key1=3 or t0.key2=4) and t1.key1<200;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 range i1,i2 i1 4 NULL 179 Using where
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1 SIMPLE t1 ref i1 i1 4 test.t0.key1 1
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explain
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select * from t0,t1 where (t0.key1=t1.key1) and
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(t0.key1=3 or t0.key2<4) and t1.key1=2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ref i1,i2 i1 4 const 1 Using where
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1 SIMPLE t1 ref i1 i1 4 const 1
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explain select * from t0,t1 where t0.key1 = 5 and
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(t1.key1 = t0.key1 or t1.key8 = t0.key1);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 ref i1 i1 4 const 1
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1 SIMPLE t1 index_merge i1,i8 i1,i8 4,4 NULL 2 Using where
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explain select * from t0,t1 where t0.key1 < 3 and
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(t1.key1 = t0.key1 or t1.key8 = t0.key1);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t0 range i1 i1 4 NULL 3 Using where
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1 SIMPLE t1 ALL i1,i8 NULL NULL NULL 1024 Range checked for each record (index map: 0x81)
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explain select * from t1 where key1=3 or key2=4
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union select * from t1 where key1<4 or key3=5;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 index_merge i1,i2 i1,i2 4,4 NULL 2 Using where
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2 UNION t1 index_merge i1,i3 i1,i3 4,4 NULL 5 Using where
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explain select * from (select * from t1 where key1 = 3 or key2 =3) as Z where key8 >5;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> system NULL NULL NULL NULL 1
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2 DERIVED t1 index_merge i1,i2 i1,i2 4,4 NULL 2 Using where
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create table t3 like t0;
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insert into t3 select * from t0;
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alter table t3 add key9 int not null, add index i9(key9);
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alter table t3 add keyA int not null, add index iA(keyA);
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alter table t3 add keyB int not null, add index iB(keyB);
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alter table t3 add keyC int not null, add index iC(keyC);
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update t3 set key9=key1,keyA=key1,keyB=key1,keyC=key1;
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explain select * from t3 where
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key1=1 or key2=2 or key3=3 or key4=4 or
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key5=5 or key6=6 or key7=7 or key8=8 or
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key9=9 or keyA=10 or keyB=11 or keyC=12;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t3 index_merge i1,i2,i3,i4,i5,i6,i7,i8,i9,iA,iB,iC i1,i2,i3,i4,i5,i6,i7,i8,i9,iA,iB,iC 4,4,4,4,4,4,4,4,4,4,4,4 NULL 12 Using where
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select * from t3 where
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key1=1 or key2=2 or key3=3 or key4=4 or
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key5=5 or key6=6 or key7=7 or key8=8 or
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key9=9 or keyA=10 or keyB=11 or keyC=12;
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key1 key2 key3 key4 key5 key6 key7 key8 key9 keyA keyB keyC
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1 1 1 1 1 1 1 1023 1 1 1 1
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2 2 2 2 2 2 2 1022 2 2 2 2
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3 3 3 3 3 3 3 1021 3 3 3 3
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4 4 4 4 4 4 4 1020 4 4 4 4
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5 5 5 5 5 5 5 1019 5 5 5 5
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6 6 6 6 6 6 6 1018 6 6 6 6
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7 7 7 7 7 7 7 1017 7 7 7 7
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1016 1016 1016 1016 1016 1016 1016 8 1016 1016 1016 1016
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9 9 9 9 9 9 9 1015 9 9 9 9
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10 10 10 10 10 10 10 1014 10 10 10 10
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11 11 11 11 11 11 11 1013 11 11 11 11
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12 12 12 12 12 12 12 1012 12 12 12 12
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drop table t0, t1, t2, t3, t4;
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