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380c9d0dae
Bug#46754: 'rows' field doesn't reflect partition pruning Update of test results after fixing the above bugs. (fix in separate commit).
201 lines
5.0 KiB
Plaintext
201 lines
5.0 KiB
Plaintext
drop table if exists t1;
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CREATE TABLE t1 (c1 INT)
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PARTITION BY HASH (c1)
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PARTITIONS 15;
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INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
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ALTER TABLE t1 COALESCE PARTITION 13;
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DROP TABLE t1;
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CREATE TABLE t1 (c1 INT)
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PARTITION BY LINEAR HASH (c1)
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PARTITIONS 5;
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INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
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ALTER TABLE t1 COALESCE PARTITION 3;
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DROP TABLE t1;
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create table t1 (a int unsigned)
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partition by hash(a div 2)
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partitions 4;
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insert into t1 values (null),(0),(1),(2),(3),(4),(5),(6),(7);
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select * from t1 where a < 0;
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a
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select * from t1 where a is null or (a >= 5 and a <= 7);
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a
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NULL
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5
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6
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7
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select * from t1 where a is null;
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a
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NULL
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select * from t1 where a is not null;
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a
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0
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1
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2
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3
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4
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5
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6
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7
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select * from t1 where a >= 1 and a < 3;
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a
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1
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2
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select * from t1 where a >= 3 and a <= 5;
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a
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3
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4
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5
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select * from t1 where a > 2 and a < 4;
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a
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3
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select * from t1 where a > 3 and a <= 6;
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a
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4
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5
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6
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select * from t1 where a > 5;
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a
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6
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7
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select * from t1 where a >= 1 and a <= 5;
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a
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1
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2
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3
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4
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5
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explain partitions select * from t1 where a < 0;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 7 Using where
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explain partitions select * from t1 where a is null;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
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explain partitions select * from t1 where a is not null;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a >= 1 and a < 3;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 5 Using where
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explain partitions select * from t1 where a >= 3 and a <= 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 4 Using where
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explain partitions select * from t1 where a > 2 and a < 4;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
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explain partitions select * from t1 where a > 3 and a <= 6;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 4 Using where
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explain partitions select * from t1 where a > 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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explain partitions select * from t1 where a >= 1 and a <= 5;
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
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drop table t1;
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CREATE TABLE t1 (
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a int not null,
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b int not null,
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c int not null,
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primary key(a,b))
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partition by hash (a + 2)
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partitions 3
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(partition x1 tablespace ts1,
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partition x2 tablespace ts2,
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partition x3 tablespace ts3);
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insert into t1 values (1,1,1);
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insert into t1 values (2,1,1);
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insert into t1 values (3,1,1);
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insert into t1 values (4,1,1);
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insert into t1 values (5,1,1);
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select * from t1;
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a b c
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1 1 1
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4 1 1
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2 1 1
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5 1 1
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3 1 1
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update t1 set c=3 where b=1;
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select * from t1;
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a b c
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1 1 3
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4 1 3
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2 1 3
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5 1 3
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3 1 3
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select b from t1 where a=3;
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b
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1
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select b,c from t1 where a=1 AND b=1;
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b c
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1 3
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delete from t1 where a=1;
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delete from t1 where c=3;
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select * from t1;
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a b c
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ALTER TABLE t1
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partition by hash (a + 3)
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partitions 3
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(partition x1 tablespace ts1,
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partition x2 tablespace ts2,
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partition x3 tablespace ts3);
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select * from t1;
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a b c
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drop table t1;
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CREATE TABLE t1 (
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a int not null,
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b int not null,
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c int not null,
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primary key(a,b))
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partition by hash (a)
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(partition x1);
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drop table t1;
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CREATE TABLE t1 (
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a int not null,
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b int not null,
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c int not null,
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primary key(a,b))
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partition by key (a)
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(partition x1);
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drop table t1;
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CREATE TABLE t1 (f1 INTEGER, f2 char(20)) ENGINE = 'MYISAM' PARTITION BY HASH(f1) PARTITIONS 2;
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INSERT INTO t1 SET f1 = 0 - 1, f2 = '#######';
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select * from t1;
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f1 f2
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-1 #######
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drop table t1;
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CREATE TABLE t1 (s1 int) ENGINE=BLACKHOLE PARTITION BY HASH (s1);
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INSERT INTO t1 VALUES (0);
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DROP TABLE t1;
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create table t1 (c1 int DEFAULT NULL,
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c2 varchar (30) DEFAULT NULL,
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c3 date DEFAULT NULL)
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engine = myisam
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partition by hash (to_days(c3))
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partitions 12;
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insert into t1 values
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(136,'abc','2002-01-05'),(142,'abc','2002-02-14'),(162,'abc','2002-06-28'),
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(182,'abc','2002-11-09'),(158,'abc','2002-06-01'),(184,'abc','2002-11-22');
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select * from t1;
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c1 c2 c3
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136 abc 2002-01-05
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158 abc 2002-06-01
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142 abc 2002-02-14
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162 abc 2002-06-28
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182 abc 2002-11-09
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184 abc 2002-11-22
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select * from t1 where c3 between '2002-01-01' and '2002-12-31';
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c1 c2 c3
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136 abc 2002-01-05
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158 abc 2002-06-01
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142 abc 2002-02-14
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162 abc 2002-06-28
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182 abc 2002-11-09
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184 abc 2002-11-22
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drop table t1;
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CREATE TABLE t1 (c1 INT) ENGINE=MyISAM PARTITION BY HASH(c1) PARTITIONS 1;
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INSERT DELAYED INTO t1 VALUES (1);
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DROP TABLE t1;
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