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mysql-test/r/partition_hash.result

+84 −0

Original line number	Diff line number	Diff line
		drop table if exists t1;
		create table t1 (a int unsigned)
		partition by hash(a div 2)
		partitions 4;
		insert into t1 values (null),(0),(1),(2),(3),(4),(5),(6),(7);
		select * from t1 where a < 0;
		a
		select * from t1 where a is null or (a >= 5 and a <= 7);
		a
		NULL
		5
		6
		7
		select * from t1 where a is null;
		a
		NULL
		select * from t1 where a is not null;
		a
		0
		1
		2
		3
		4
		5
		6
		7
		select * from t1 where a >= 1 and a < 3;
		a
		1
		2
		select * from t1 where a >= 3 and a <= 5;
		a
		3
		4
		5
		select * from t1 where a > 2 and a < 4;
		a
		3
		select * from t1 where a > 3 and a <= 6;
		a
		4
		5
		6
		select * from t1 where a > 5;
		a
		6
		7
		select * from t1 where a >= 1 and a <= 5;
		a
		1
		2
		3
		4
		5
		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,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
		explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0,p2,p3 ALL NULL NULL NULL NULL 7 Using where
		explain partitions select * from t1 where a is null;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0 ALL NULL NULL NULL NULL 3 Using where
		explain partitions select * from t1 where a is not null;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
		explain partitions select * from t1 where a >= 1 and a < 3;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0,p1 ALL NULL NULL NULL NULL 5 Using where
		explain partitions select * from t1 where a >= 3 and a <= 5;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p1,p2 ALL NULL NULL NULL NULL 4 Using where
		explain partitions select * from t1 where a > 2 and a < 4;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
		explain partitions select * from t1 where a > 3 and a <= 6;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p2,p3 ALL NULL NULL NULL NULL 4 Using where
		explain partitions select * from t1 where a > 5;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
		explain partitions select * from t1 where a >= 1 and a <= 5;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p0,p1,p2,p3 ALL NULL NULL NULL NULL 9 Using where
		drop table t1;
		CREATE TABLE t1 (
		a int not null,
		b int not null,

mysql-test/r/partition_list.result

+94 −0

Original line number	Diff line number	Diff line
		drop table if exists t1;
		create table t1 (a int unsigned)
		partition by list (a)
		(partition p0 values in (0),
		partition p1 values in (1),
		partition pnull values in (null),
		partition p2 values in (2));
		insert into t1 values (null),(0),(1),(2);
		select * from t1 where a < 2;
		a
		0
		1
		select * from t1 where a <= 0;
		a
		0
		select * from t1 where a < 1;
		a
		0
		select * from t1 where a > 0;
		a
		1
		2
		select * from t1 where a > 1;
		a
		2
		select * from t1 where a >= 0;
		a
		0
		1
		2
		select * from t1 where a >= 1;
		a
		1
		2
		select * from t1 where a is null;
		a
		NULL
		select * from t1 where a is not null;
		a
		0
		1
		2
		select * from t1 where a is null or a > 0;
		a
		1
		NULL
		2
		drop table t1;
		create table t1 (a int unsigned, b int)
		partition by list (a)
		subpartition by hash (b)
		subpartitions 2
		(partition p0 values in (0),
		partition p1 values in (1),
		partition pnull values in (null, 2),
		partition p3 values in (3));
		insert into t1 values (0,0),(0,1),(1,0),(1,1),(null,0),(null,1);
		insert into t1 values (2,0),(2,1),(3,0),(3,1);
		explain partitions select * from t1 where a is null;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 4 Using where
		select * from t1 where a is null;
		a b
		NULL 0
		NULL 1
		explain partitions select * from t1 where a = 2;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 4 Using where
		select * from t1 where a = 2;
		a b
		2 0
		2 1
		select * from t1 where a <= 0;
		a b
		0 0
		0 1
		select * from t1 where a < 3;
		a b
		0 0
		0 1
		1 0
		1 1
		2 0
		2 1
		select * from t1 where a >= 1 or a is null;
		a b
		1 0
		1 1
		NULL 0
		2 0
		NULL 1
		2 1
		3 0
		3 1
		drop table t1;
		CREATE TABLE t1 (
		a int not null,
		b int not null,

mysql-test/r/partition_pruning.result

+78 −0

Original line number	Diff line number	Diff line
		@@ -149,6 +149,48 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
		explain partitions select * from t6 where a > 3 and a < 5;
		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 t6;
		create table t6 (a int unsigned not null) partition by LIST(a) (
		partition p1 values in (1),
		partition p3 values in (3),
		partition p5 values in (5),
		partition p7 values in (7),
		partition p9 values in (9)
		);
		insert into t6 values (1),(3),(5);
		explain partitions select * from t6 where a < 1;
		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 t6 where a <= 1;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p1 system NULL NULL NULL NULL 1
		explain partitions select * from t6 where a > 9;
		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 t6 where a >= 9;
		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 t6 where a > 0 and a < 5;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p1,p3 ALL NULL NULL NULL NULL 2 Using where
		explain partitions select * from t6 where a > 5 and a < 12;
		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 t6 where a > 3 and a < 8 ;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p5,p7 system NULL NULL NULL NULL 1
		explain partitions select * from t6 where a >= 0 and a <= 5;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p1,p3,p5 ALL NULL NULL NULL NULL 3 Using where
		explain partitions select * from t6 where a >= 5 and a <= 12;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p5,p7,p9 system NULL NULL NULL NULL 1
		explain partitions select * from t6 where a >= 3 and a <= 8;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t6 p3,p5,p7 ALL NULL NULL NULL NULL 2 Using where
		explain partitions select * from t6 where a > 3 and a < 5;
		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
		create table t7 (a int not null) partition by RANGE(a) (
		partition p10 values less than (10),
		partition p30 values less than (30),
		@@ -184,6 +226,42 @@ id select_type table partitions type possible_keys key key_len ref rows Extra
		explain partitions select * from t7 where a > 11 and a < 29;
		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 t7;
		create table t7 (a int unsigned not null) partition by RANGE(a) (
		partition p10 values less than (10),
		partition p30 values less than (30),
		partition p50 values less than (50),
		partition p70 values less than (70),
		partition p90 values less than (90)
		);
		insert into t7 values (10),(30),(50);
		explain partitions select * from t7 where a < 5;
		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 t7 where a < 10;
		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 t7 where a <= 10;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t7 p10,p30 system NULL NULL NULL NULL 1
		explain partitions select * from t7 where a = 10;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t7 p30 system NULL NULL NULL NULL 1
		explain partitions select * from t7 where a < 90;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t7 p10,p30,p50,p70,p90 ALL NULL NULL NULL NULL 3 Using where
		explain partitions select * from t7 where a = 90;
		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 t7 where a > 90;
		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 t7 where a >= 90;
		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 t7 where a > 11 and a < 29;
		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
		create table t8 (a date not null) partition by RANGE(YEAR(a)) (
		partition p0 values less than (1980),
		partition p1 values less than (1990),

mysql-test/r/partition_range.result

+78 −0

Original line number	Diff line number	Diff line
		drop table if exists t1;
		create table t1 (a int unsigned)
		partition by range (a)
		(partition pnull values less than (0),
		partition p0 values less than (1),
		partition p1 values less than(2));
		insert into t1 values (null),(0),(1);
		select * from t1 where a is null;
		a
		NULL
		select * from t1 where a >= 0;
		a
		0
		1
		select * from t1 where a < 0;
		a
		select * from t1 where a <= 0;
		a
		0
		select * from t1 where a > 1;
		a
		explain partitions select * from t1 where a is null;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 pnull system NULL NULL NULL NULL 1
		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,p1 ALL NULL NULL NULL NULL 2 Using where
		explain partitions select * from t1 where a < 0;
		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;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 pnull,p0 ALL NULL NULL NULL NULL 2 Using where
		explain partitions select * from t1 where a > 1;
		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 unsigned, b int unsigned)
		partition by range (a)
		subpartition by hash (b)
		subpartitions 2
		(partition pnull values less than (0),
		partition p0 values less than (1),
		partition p1 values less than(2));
		insert into t1 values (null,0),(null,1),(0,0),(0,1),(1,0),(1,1);
		select * from t1 where a is null;
		a b
		NULL 0
		NULL 1
		select * from t1 where a >= 0;
		a b
		0 0
		0 1
		1 0
		1 1
		select * from t1 where a < 0;
		a b
		select * from t1 where a <= 0;
		a b
		0 0
		0 1
		select * from t1 where a > 1;
		a b
		explain partitions select * from t1 where a is null;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where
		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_p0sp0,p0_p0sp1,p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 4 Using where
		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 pnull_pnullsp0,pnull_pnullsp1 ALL NULL NULL NULL NULL 2 Using where
		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 pnull_pnullsp0,pnull_pnullsp1,p0_p0sp0,p0_p0sp1 ALL NULL NULL NULL NULL 4 Using where
		explain partitions select * from t1 where a > 1;
		id select_type table partitions type possible_keys key key_len ref rows Extra
		1 SIMPLE t1 p1_p1sp0,p1_p1sp1 ALL NULL NULL NULL NULL 2 Using where
		drop table t1;
		CREATE TABLE t1 (
		a int not null,
		b int not null,

mysql-test/t/partition_hash.test

+30 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,36 @@
		drop table if exists t1;
		--enable_warnings

		#
		# More partition pruning tests, especially on interval walking
		#
		create table t1 (a int unsigned)
		partition by hash(a div 2)
		partitions 4;
		insert into t1 values (null),(0),(1),(2),(3),(4),(5),(6),(7);
		select * from t1 where a < 0;
		select * from t1 where a is null or (a >= 5 and a <= 7);
		select * from t1 where a is null;
		select * from t1 where a is not null;
		select * from t1 where a >= 1 and a < 3;
		select * from t1 where a >= 3 and a <= 5;
		select * from t1 where a > 2 and a < 4;
		select * from t1 where a > 3 and a <= 6;
		select * from t1 where a > 5;
		select * from t1 where a >= 1 and a <= 5;
		explain partitions select * from t1 where a < 0;
		explain partitions select * from t1 where a is null or (a >= 5 and a <= 7);
		explain partitions select * from t1 where a is null;
		explain partitions select * from t1 where a is not null;
		explain partitions select * from t1 where a >= 1 and a < 3;
		explain partitions select * from t1 where a >= 3 and a <= 5;
		explain partitions select * from t1 where a > 2 and a < 4;
		explain partitions select * from t1 where a > 3 and a <= 6;
		explain partitions select * from t1 where a > 5;
		explain partitions select * from t1 where a >= 1 and a <= 5;

		drop table t1;

		#
		# Partition by hash, basic
		#