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Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1

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into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql
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evgen@sunlight.local
2006-07-29 23:54:55 +04:00
parent 69f9fe7531 285e392512
commit 8cd88a9179
4 changed files with 174 additions and 4 deletions
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86
mysql-test/r/partition_pruning.result
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@ -775,3 +775,89 @@ ref NULL
rows 2
Extra
drop table t2;
create table t1 (s1 int);
explain partitions select 1 from t1 union all select 2;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 PRIMARY t1 NULL system NULL NULL NULL NULL 0 const row not found
2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union1,2> NULL ALL NULL NULL NULL NULL NULL
drop table t1;
create table t1 (a bigint unsigned not null) partition by range(a) (
partition p0 values less than (10),
partition p1 values less than (100),
partition p2 values less than (1000),
partition p3 values less than (18446744073709551000),
partition p4 values less than (18446744073709551614)
);
insert into t1 values (5),(15),(105),(1005);
insert into t1 values (18446744073709551000+1);
insert into t1 values (18446744073709551614-1);
explain partitions select * from t1 where a < 10;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 system NULL NULL NULL NULL 1
explain partitions select * from t1
where a >= 18446744073709551000-1 and a <= 18446744073709551000+1;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3,p4 ALL NULL NULL NULL NULL 3 Using where
explain partitions select * from t1
where a between 18446744073709551001 and 18446744073709551002;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a = 18446744073709551000;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a = 18446744073709551613;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p4 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a = 18446744073709551614;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
drop table t1;
create table t1 (a int)
partition by range((a & 0xFF) << 56) (
partition p0 values less than (0x40 << 56),
partition p1 values less than (0x80 << 56),
partition p2 values less than (0xFF << 56)
);
insert into t1 values (0x20), (0x20), (0x41), (0x41), (0xFE), (0xFE);
explain partitions select * from t1 where a=0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a=0xFE;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p2 ALL NULL NULL NULL NULL 2 Using where
explain partitions select * from t1 where a>0xFE and a<= 0xFF;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
drop table t1;
create table t1(a bigint unsigned not null) partition by range(a+0) (
partition p1 values less than (10),
partition p2 values less than (20),
partition p3 values less than (2305561538531885056),
partition p4 values less than (2305561538531950591)
);
insert into t1 values (9),(19),(0xFFFF0000FFFF000-1), (0xFFFF0000FFFFFFF-1);
insert into t1 values (9),(19),(0xFFFF0000FFFF000-1), (0xFFFF0000FFFFFFF-1);
explain partitions select * from t1 where
a >= 2305561538531885056-10 and a <= 2305561538531885056-8;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3 ALL NULL NULL NULL NULL 4 Using where
explain partitions select * from t1 where
a > 0xFFFFFFFFFFFFFFEC and a < 0xFFFFFFFFFFFFFFEE;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
explain partitions select * from t1 where a>=0 and a <= 0xFFFFFFFFFFFFFFFF;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p1,p2,p3,p4 ALL NULL NULL NULL NULL 8 Using where
drop table t1;
create table t1 (a bigint) partition by range(a+0) (
partition p1 values less than (-1000),
partition p2 values less than (-10),
partition p3 values less than (10),
partition p4 values less than (1000)
);
insert into t1 values (-15),(-5),(5),(15),(-15),(-5),(5),(15);
explain partitions select * from t1 where a>-2 and a <=0;
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p3 ALL NULL NULL NULL NULL 4 Using where
drop table t1;