mirror of
https://github.com/MariaDB/server.git
synced 2025-11-04 04:46:15 +01:00
293 lines
12 KiB
Text
293 lines
12 KiB
Text
DROP TABLE IF EXISTS t1,t2,t3,t4;
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FLUSH STATUS;
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---------------------------------------by range------------------------------------------
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CREATE TABLE t1 (i int, a VARCHAR(1000) COMPRESSED DEFAULT "AAA")
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PARTITION BY RANGE COLUMNS (a)(
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PARTITION p0 VALUES LESS THAN ('g') COMMENT "p0",
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PARTITION p1 VALUES LESS THAN ('m'),
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PARTITION p2 VALUES LESS THAN ('t'),
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PARTITION p3 VALUES LESS THAN ('w'));
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ALTER TABLE t1 ADD PARTITION (PARTITION p4 VALUES LESS THAN (MAXVALUE));
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INSERT INTO t1 VALUES (1,REPEAT('a',100)),(2,REPEAT('v',200)),(3,REPEAT('r',300)),(4,NULL);
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INSERT INTO t1 VALUES (5,REPEAT('k',500)),(6,'April'),(7,7),(8,""),(9,"M"),(10,DEFAULT);
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ALTER TABLE t1 ANALYZE PARTITION p1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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ALTER TABLE t1 CHECK PARTITION p2;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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SELECT i,SUBSTRING(a,1,10) FROM t1 PARTITION (p2) ORDER BY i;
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i SUBSTRING(a,1,10)
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3 rrrrrrrrrr
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9 M
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SELECT i,SUBSTRING(a,1,10) FROM t1 where length(a)>=300 ORDER BY i;
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i SUBSTRING(a,1,10)
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3 rrrrrrrrrr
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5 kkkkkkkkkk
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SELECT i,SUBSTRING(a,1,10) FROM t1 where a like "%k" ORDER BY i;
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i SUBSTRING(a,1,10)
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5 kkkkkkkkkk
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DELETE FROM t1 where a="";
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DELETE FROM t1 where a=(REPEAT('a',100));
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DELETE FROM t1 where a like "%v";
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SELECT i,SUBSTRING(a,1,10) FROM t1 ORDER BY i;
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i SUBSTRING(a,1,10)
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3 rrrrrrrrrr
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4 NULL
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5 kkkkkkkkkk
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6 April
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7 7
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9 M
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10 AAA
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SELECT i,SUBSTRING(a,1,10) FROM t1 where a not like "%k" ORDER BY i;
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i SUBSTRING(a,1,10)
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3 rrrrrrrrrr
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6 April
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7 7
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9 M
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10 AAA
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SELECT i,SUBSTRING(a,1,10) FROM t1 where (a>'m') ORDER BY i;
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i SUBSTRING(a,1,10)
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3 rrrrrrrrrr
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SELECT i,SUBSTRING(a,1,10) FROM t1 where (a between 'h' and 'z') and (i=9) ORDER BY i;
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i SUBSTRING(a,1,10)
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9 M
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EXPLAIN PARTITIONS SELECT i,SUBSTRING(a,1,10) FROM t1 where (a>'m');
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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,p4 ALL NULL NULL NULL NULL 2 Using where
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EXPLAIN PARTITIONS SELECT i,SUBSTRING(a,1,10) FROM t1 where (a<'w');
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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 7 Using where
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ALTER TABLE t1 TRUNCATE PARTITION p2;
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ALTER TABLE t1 DROP PARTITION p0;
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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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`i` int(11) DEFAULT NULL,
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`a` varchar(1000) /*M!100301 COMPRESSED*/ DEFAULT 'AAA'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY RANGE COLUMNS(`a`)
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(PARTITION `p1` VALUES LESS THAN ('m') ENGINE = MyISAM,
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PARTITION `p2` VALUES LESS THAN ('t') ENGINE = MyISAM,
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PARTITION `p3` VALUES LESS THAN ('w') ENGINE = MyISAM,
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PARTITION `p4` VALUES LESS THAN (MAXVALUE) ENGINE = MyISAM)
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ALTER TABLE t1 MODIFY COLUMN a VARCHAR(1000);
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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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`i` int(11) DEFAULT NULL,
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`a` varchar(1000) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY RANGE COLUMNS(`a`)
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(PARTITION `p1` VALUES LESS THAN ('m') ENGINE = MyISAM,
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PARTITION `p2` VALUES LESS THAN ('t') ENGINE = MyISAM,
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PARTITION `p3` VALUES LESS THAN ('w') ENGINE = MyISAM,
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PARTITION `p4` VALUES LESS THAN (MAXVALUE) ENGINE = MyISAM)
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DROP TABLE t1;
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---------------------------------------------------------------------------------------------
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CREATE TABLE t1 (a VARCHAR(1000) COMPRESSED NOT NULL, id INT)
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PARTITION BY RANGE COLUMNS(id,a)(
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PARTITION p0 VALUES LESS THAN (100,'sss'),
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PARTITION p1 VALUES LESS THAN (MAXVALUE,MAXVALUE));
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INSERT INTO t1 VALUES (REPEAT('a',100), 23),(REPEAT('v',100),123),(REPEAT('z',100),24),(REPEAT('k',100),124);
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SELECT id,SUBSTRING(a,1,10) FROM t1 order by id;
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id SUBSTRING(a,1,10)
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23 aaaaaaaaaa
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24 zzzzzzzzzz
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123 vvvvvvvvvv
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124 kkkkkkkkkk
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SELECT * from t1 partition (p0);
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a id
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 23
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zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz 24
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SELECT * from t1 partition (p1);
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a id
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vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv 123
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kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk 124
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INSERT INTO t1 VALUES (REPEAT('a',100),101);
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SELECT * from t1 partition (p0);
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a id
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 23
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zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz 24
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SELECT * from t1 partition (p1);
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a id
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vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv 123
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kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk 124
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 101
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ALTER TABLE t1 DROP PARTITION p1;
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SELECT id,SUBSTRING(a,1,10) FROM t1 WHERE id<50 order by id;
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id SUBSTRING(a,1,10)
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23 aaaaaaaaaa
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24 zzzzzzzzzz
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INSERT INTO t1 VALUES (REPEAT('a',100),101);
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ERROR HY000: Table has no partition for value from column_list
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ALTER TABLE t1 ALTER COLUMN a SET DEFAULT 'qwerty';
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ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
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ALTER TABLE t1 MODIFY COLUMN a VARCHAR(1000);
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ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
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INSERT INTO t1 VALUES (REPEAT('b',100),11);
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INSERT INTO t1 VALUES (default,10);
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ERROR HY000: Field 'a' doesn't have a default value
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ALTER TABLE t1 MODIFY COLUMN a VARCHAR(1000) COMPRESSED;
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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` varchar(1000) /*M!100301 COMPRESSED*/ DEFAULT NULL,
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`id` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY RANGE COLUMNS(`id`,`a`)
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(PARTITION `p0` VALUES LESS THAN (100,'sss') ENGINE = MyISAM)
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SELECT * from t1 ORDER BY id;
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a id
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bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 11
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 23
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zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz 24
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DROP TABLE t1;
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----------------------------1 partition--------------------------------------------------
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CREATE TABLE t1 (a VARCHAR(1000) COMPRESSED DEFAULT "10-12-2010")
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PARTITION BY RANGE COLUMNS (a) (partition p0 VALUES LESS THAN (MAXVALUE));
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INSERT INTO t1 VALUES (REPEAT('a',100)), (REPEAT('v',200)), (REPEAT('Z',300)),(NULL),(DEFAULT);
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INSERT INTO t1 VALUES (DEFAULT),(REPEAT('b',200)),(REPEAT('q',300)),(DEFAULT),("MAY");
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SELECT SUBSTRING(a,1,10) FROM t1;
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SUBSTRING(a,1,10)
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10-12-2010
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10-12-2010
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10-12-2010
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MAY
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NULL
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ZZZZZZZZZZ
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aaaaaaaaaa
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bbbbbbbbbb
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qqqqqqqqqq
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vvvvvvvvvv
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-----------------------------------------by key------------------------------------------
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ALTER TABLE t1 PARTITION BY KEY(a) PARTITIONS 6;
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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` varchar(1000) /*M!100301 COMPRESSED*/ DEFAULT '10-12-2010'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`)
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PARTITIONS 6
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UPDATE t1 SET a="NEW" where length(a)<20;
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SELECT SUBSTRING(a,1,10) FROM t1;
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SUBSTRING(a,1,10)
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NEW
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NEW
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NEW
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NEW
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NULL
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ZZZZZZZZZZ
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aaaaaaaaaa
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bbbbbbbbbb
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qqqqqqqqqq
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vvvvvvvvvv
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CREATE TABLE t2 (a VARBINARY(1000) COMPRESSED)
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PARTITION BY KEY(a) PARTITIONS 3;
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ALTER TABLE t2 PARTITION BY LINEAR KEY ALGORITHM=2 (a) PARTITIONS 32;
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INSERT INTO t2 VALUES (REPEAT('a',100)),(REPEAT('v',6)),(REPEAT('z',13)),(REPEAT('k',900));
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SELECT SUBSTRING(a,1,10) FROM t2;
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SUBSTRING(a,1,10)
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aaaaaaaaaa
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kkkkkkkkkk
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vvvvvv
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zzzzzzzzzz
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CREATE TABLE t3 ( a VARCHAR(1000) COMPRESSED DEFAULT NULL)
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PARTITION BY LINEAR KEY(a) PARTITIONS 3;
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INSERT INTO t3 VALUES (REPEAT('a',100)),(REPEAT('v',100)),(NULL),(REPEAT('k',100)),(DEFAULT);
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SELECT SUBSTRING(a,1,10) FROM t3 where a<>NULL;
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SUBSTRING(a,1,10)
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CREATE TABLE t4 (a VARBINARY(1000) COMPRESSED NOT NULL DEFAULT 0 COMMENT "QQ")
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PARTITION BY LINEAR KEY(a)
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PARTITIONS 3;
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INSERT INTO t4 VALUES (REPEAT('a',100)),('0'),(DEFAULT),(DEFAULT),(REPEAT('v',100)),(REPEAT('k',100));
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SELECT SUBSTRING(a,1,10) FROM t4 where length(a)>3;
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SUBSTRING(a,1,10)
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aaaaaaaaaa
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kkkkkkkkkk
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vvvvvvvvvv
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DROP TABLE t1,t2,t3,t4;
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-----------------------------------subpartitions------------------------------------------
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CREATE TABLE t1 (a VARCHAR(1000) COMPRESSED, id INT NOT NULL)
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PARTITION BY RANGE(id)
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SUBPARTITION BY KEY(a) SUBPARTITIONS 4
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(PARTITION p0 VALUES LESS THAN (5),
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PARTITION p1 VALUES LESS THAN (MAXVALUE));
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INSERT INTO t1 VALUES (REPEAT('a',100),23),(REPEAT('v',100),123),(REPEAT('z',100),24),(REPEAT('k',100),124);
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SELECT id,SUBSTRING(a,1,10) FROM t1 where a=(REPEAT('k',100)) order by id;
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id SUBSTRING(a,1,10)
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124 kkkkkkkkkk
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DROP TABLE t1;
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-------------------------------------------------------------------------------------------
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CREATE TABLE t1 (a BLOB COMPRESSED)
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PARTITION BY KEY(a) partitions 30;
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ERROR HY000: A BLOB field is not allowed in partition function
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CREATE TABLE t1 (a VARCHAR(200) COMPRESSED) PARTITION BY KEY(a) partitions 30;
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ALTER TABLE t1 COALESCE PARTITION 20;
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ALTER TABLE t1 ADD PARTITION (PARTITION pm);
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CREATE TABLE t2 like t1;
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ALTER TABLE t2 REMOVE PARTITIONING;
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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` varchar(200) /*M!100301 COMPRESSED*/ DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY KEY (`a`)
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(PARTITION `p0` ENGINE = MyISAM,
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PARTITION `p1` ENGINE = MyISAM,
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PARTITION `p2` ENGINE = MyISAM,
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PARTITION `p3` ENGINE = MyISAM,
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PARTITION `p4` ENGINE = MyISAM,
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PARTITION `p5` ENGINE = MyISAM,
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PARTITION `p6` ENGINE = MyISAM,
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PARTITION `p7` ENGINE = MyISAM,
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PARTITION `p8` ENGINE = MyISAM,
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PARTITION `p9` ENGINE = MyISAM,
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PARTITION `pm` ENGINE = MyISAM)
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`a` varchar(200) /*M!100301 COMPRESSED*/ DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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ALTER TABLE t1 EXCHANGE PARTITION pm WITH TABLE t2;
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DROP TABLE t1,t2;
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-------------------------------------------------------------------------------------------
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CREATE TABLE t1 (a BLOB COMPRESSED default 5,i int);
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INSERT INTO t1 VALUES (REPEAT('a',100),1),(REPEAT('v',100),2),(REPEAT('z',100),3),(REPEAT('k',100),2),(2,2);
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ALTER TABLE t1 PARTITION BY KEY(a) partitions 3;
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ERROR HY000: A BLOB field is not allowed in partition function
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ALTER TABLE t1 PARTITION BY HASH(i) PARTITIONS 8;
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ALTER TABLE t1 REORGANIZE PARTITION p0 INTO (
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PARTITION s0 VALUES LESS THAN (1960),
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PARTITION s1 VALUES LESS THAN (1970)
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);
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ERROR HY000: Only RANGE PARTITIONING can use VALUES LESS THAN in partition definition
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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` blob /*M!100301 COMPRESSED*/ DEFAULT 5,
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`i` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY HASH (`i`)
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PARTITIONS 8
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ALTER TABLE t1 REMOVE PARTITIONING;
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DROP TABLE t1;
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CREATE TABLE t1 (a VARCHAR(500) COMPRESSED default 5,i int)
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PARTITION BY RANGE COLUMNS(i)(
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PARTITION p0 VALUES LESS THAN (10),
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PARTITION p1 VALUES LESS THAN (100),
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PARTITION p2 VALUES LESS THAN (1000));
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INSERT INTO t1 VALUES (REPEAT('a',100),1),("one",21),(REPEAT('3',100),34),(REPEAT('k',100),267),(2,278);
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ALTER TABLE t1 REORGANIZE PARTITION p2 INTO (PARTITION p22 VALUES LESS THAN (MAXVALUE));
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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` varchar(500) /*M!100301 COMPRESSED*/ DEFAULT '5',
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`i` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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PARTITION BY RANGE COLUMNS(`i`)
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(PARTITION `p0` VALUES LESS THAN (10) ENGINE = MyISAM,
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PARTITION `p1` VALUES LESS THAN (100) ENGINE = MyISAM,
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PARTITION `p22` VALUES LESS THAN (MAXVALUE) ENGINE = MyISAM)
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ALTER TABLE t1 REBUILD PARTITION p22;
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DROP TABLE t1;
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