159 lines
10 KiB
Plaintext
159 lines
10 KiB
Plaintext
drop table if exists t1,t2,t3,t4;
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create table t1 (a int not null,b int not null,c int not null, primary key(a,b))
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partition by list (b*a)
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(partition x1 values in (1),
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partition x2 values in (3, 11, 5, 7),
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partition x3 values in (16, 8, 5+19, 70-43));
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select * from information_schema.partitions where table_schema="test"
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and table_name="t1";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t1 x1 NULL 1 NULL LIST NULL (`b` * `a`) NULL 1 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x2 NULL 2 NULL LIST NULL (`b` * `a`) NULL 3,11,5,7 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x3 NULL 3 NULL LIST NULL (`b` * `a`) NULL 16,8,24,27 0 0 16384 # 0 0 # # NULL NULL default NULL
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create table t2 (a int not null,b int not null,c int not null, primary key(a,b))
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partition by range (a)
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partitions 3
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(partition x1 values less than (5),
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partition x2 values less than (10),
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partition x3 values less than maxvalue);
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select * from information_schema.partitions where table_schema="test"
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and table_name="t2";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t2 x1 NULL 1 NULL RANGE NULL `a` NULL 5 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x2 NULL 2 NULL RANGE NULL `a` NULL 10 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x3 NULL 3 NULL RANGE NULL `a` NULL MAXVALUE 0 0 16384 # 0 0 # # NULL NULL default NULL
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create table t3 (f1 date)
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partition by hash(month(f1))
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partitions 3;
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select * from information_schema.partitions where table_schema="test"
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and table_name="t3";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t3 p0 NULL 1 NULL HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t3 p1 NULL 2 NULL HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t3 p2 NULL 3 NULL HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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create table t4 (f1 date, f2 int)
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partition by key(f1,f2)
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partitions 3;
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select * from information_schema.partitions where table_schema="test"
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and table_name="t4";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t4 p0 NULL 1 NULL KEY NULL `f1`,`f2` NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t4 p1 NULL 2 NULL KEY NULL `f1`,`f2` NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t4 p2 NULL 3 NULL KEY NULL `f1`,`f2` NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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drop table t1,t2,t3,t4;
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create table t1 (a int not null,b int not null,c int not null,primary key (a,b))
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partition by range (a)
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subpartition by hash (a+b)
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( partition x1 values less than (1)
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( subpartition x11,
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subpartition x12),
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partition x2 values less than (5)
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( subpartition x21,
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subpartition x22)
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);
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create table t2 (a int not null,b int not null,c int not null,primary key (a,b))
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partition by range (a)
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subpartition by key (a)
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( partition x1 values less than (1)
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( subpartition x11,
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subpartition x12),
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partition x2 values less than (5)
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( subpartition x21,
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subpartition x22)
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);
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select * from information_schema.partitions where table_schema="test";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t1 x1 x11 1 1 RANGE HASH `a` (`a` + `b`) 1 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x1 x12 1 2 RANGE HASH `a` (`a` + `b`) 1 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x2 x21 2 1 RANGE HASH `a` (`a` + `b`) 5 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x2 x22 2 2 RANGE HASH `a` (`a` + `b`) 5 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x1 x11 1 1 RANGE KEY `a` `a` 1 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x1 x12 1 2 RANGE KEY `a` `a` 1 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x2 x21 2 1 RANGE KEY `a` `a` 5 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t2 x2 x22 2 2 RANGE KEY `a` `a` 5 0 0 16384 # 0 0 # # NULL NULL default NULL
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drop table t1,t2;
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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 range (a)
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subpartition by hash (a+b)
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( partition x1 values less than (1)
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( subpartition x11 nodegroup 0,
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subpartition x12 nodegroup 1),
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partition x2 values less than (5)
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( subpartition x21 nodegroup 0,
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subpartition x22 nodegroup 1),
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partition x3 values less than (10)
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( subpartition x31 max_rows=50,
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subpartition x32 nodegroup 1)
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);
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select * from information_schema.partitions where table_schema="test";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t1 x1 x11 1 1 RANGE HASH `a` (`a` + `b`) 1 0 0 16384 # 0 0 # # NULL NULL 0 NULL
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def test t1 x1 x12 1 2 RANGE HASH `a` (`a` + `b`) 1 0 0 16384 # 0 0 # # NULL NULL 1 NULL
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def test t1 x2 x21 2 1 RANGE HASH `a` (`a` + `b`) 5 0 0 16384 # 0 0 # # NULL NULL 0 NULL
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def test t1 x2 x22 2 2 RANGE HASH `a` (`a` + `b`) 5 0 0 16384 # 0 0 # # NULL NULL 1 NULL
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def test t1 x3 x31 3 1 RANGE HASH `a` (`a` + `b`) 10 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 x3 x32 3 2 RANGE HASH `a` (`a` + `b`) 10 0 0 16384 # 0 0 # # NULL NULL 1 NULL
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show tables;
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Tables_in_test
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t1
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drop table t1;
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create table t1(f1 int, f2 int);
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select * from information_schema.partitions where table_schema="test";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t1 NULL NULL NULL NULL NULL NULL NULL NULL NULL 0 0 16384 # 0 0 # # NULL NULL NULL
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drop table t1;
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create table t1 (f1 date)
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partition by linear hash(month(f1))
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partitions 3;
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select * from information_schema.partitions where table_schema="test"
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and table_name="t1";
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
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def test t1 p0 NULL 1 NULL LINEAR HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 p1 NULL 2 NULL LINEAR HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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def test t1 p2 NULL 3 NULL LINEAR HASH NULL month(`f1`) NULL NULL 0 0 16384 # 0 0 # # NULL NULL default NULL
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drop table t1;
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create table t1 (a int)
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PARTITION BY RANGE (a)
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SUBPARTITION BY LINEAR HASH (a)
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(PARTITION p0 VALUES LESS THAN (10));
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY RANGE (`a`)
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SUBPARTITION BY LINEAR HASH (`a`)
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(PARTITION p0 VALUES LESS THAN (10) ENGINE = InnoDB) */
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select SUBPARTITION_METHOD FROM information_schema.partitions WHERE
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table_schema="test" AND table_name="t1";
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SUBPARTITION_METHOD
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LINEAR HASH
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drop table t1;
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create table t1 (a int)
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PARTITION BY LIST (a)
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(PARTITION p0 VALUES IN
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(10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
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32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53));
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY LIST (`a`)
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(PARTITION p0 VALUES IN (10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53) ENGINE = InnoDB) */
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SELECT PARTITION_DESCRIPTION FROM information_schema.partitions WHERE
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table_schema = "test" AND table_name = "t1";
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PARTITION_DESCRIPTION
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10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53
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drop table t1;
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drop table if exists t1;
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create table t1 (f1 int key) partition by key(f1) partitions 2;
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select create_options from information_schema.tables where table_schema="test";
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CREATE_OPTIONS
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partitioned
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drop table t1;
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