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e96182824d
DOWNGRADED FROM 5.6.11 TO 5.6.10 Problem was new syntax not accepted by previous version. Fixed by adding version comment of /*!50531 around the new syntax. Like this in the .frm file: 'PARTITION BY KEY /*!50611 ALGORITHM = 2 */ () PARTITIONS 3' and also changing the output from SHOW CREATE TABLE to: CREATE TABLE t1 (a INT) /*!50100 PARTITION BY KEY */ /*!50611 ALGORITHM = 1 */ /*!50100 () PARTITIONS 3 */ It will always add the ALGORITHM into the .frm for KEY [sub]partitioned tables, but for SHOW CREATE TABLE it will only add it in case it is the non default ALGORITHM = 1. Also notice that for 5.5, it will say /*!50531 instead of /*!50611, which will make upgrade from 5.5 > 5.5.31 to 5.6 < 5.6.11 fail! If one downgrades an fixed version to the same major version (5.5 or 5.6) the bug 14521864 will be visible again, but unless the .frm is updated, it will work again when upgrading again. Also fixed so that the .frm does not get updated version if a single partition check passes.
758 lines
56 KiB
Plaintext
758 lines
56 KiB
Plaintext
---- Partitioning and char data type
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create table t1 (a char(255) not null, primary key(a)) engine='MyISAM'
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partition by key (a) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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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` char(255) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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/*!50100 PARTITION BY KEY (a)
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(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
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insert into t1 values (repeat('a',255)), ('b'), (repeat('a',128)), (repeat('b',64));
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select * from t1;
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a
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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b
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bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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select * from t1 where a='b';
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a
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b
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update t1 set a='bb' where a='b';
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delete from t1 where a='bb';
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select * from t1;
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a
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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drop table t1;
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create table t2 (a char(255) not null, primary key(a)) engine='MyISAM'
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partition by key (a) partitions 27;
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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` char(255) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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/*!50100 PARTITION BY KEY (a)
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PARTITIONS 27 */
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26 inserts;
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insert into t2 values (repeat(char(ascii('a')+0),26+54));
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insert into t2 values (repeat(char(ascii('a')+1),25+54));
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insert into t2 values (repeat(char(ascii('a')+2),24+54));
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insert into t2 values (repeat(char(ascii('a')+3),23+54));
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insert into t2 values (repeat(char(ascii('a')+4),22+54));
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insert into t2 values (repeat(char(ascii('a')+5),21+54));
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insert into t2 values (repeat(char(ascii('a')+6),20+54));
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insert into t2 values (repeat(char(ascii('a')+7),19+54));
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insert into t2 values (repeat(char(ascii('a')+8),18+54));
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insert into t2 values (repeat(char(ascii('a')+9),17+54));
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insert into t2 values (repeat(char(ascii('a')+10),16+54));
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insert into t2 values (repeat(char(ascii('a')+11),15+54));
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insert into t2 values (repeat(char(ascii('a')+12),14+54));
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insert into t2 values (repeat(char(ascii('a')+13),13+54));
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insert into t2 values (repeat(char(ascii('a')+14),12+54));
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insert into t2 values (repeat(char(ascii('a')+15),11+54));
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insert into t2 values (repeat(char(ascii('a')+16),10+54));
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insert into t2 values (repeat(char(ascii('a')+17),9+54));
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insert into t2 values (repeat(char(ascii('a')+18),8+54));
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insert into t2 values (repeat(char(ascii('a')+19),7+54));
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insert into t2 values (repeat(char(ascii('a')+20),6+54));
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insert into t2 values (repeat(char(ascii('a')+21),5+54));
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insert into t2 values (repeat(char(ascii('a')+22),4+54));
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insert into t2 values (repeat(char(ascii('a')+23),3+54));
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insert into t2 values (repeat(char(ascii('a')+24),2+54));
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insert into t2 values (repeat(char(ascii('a')+25),1+54));
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select count(*) from t2;
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count(*)
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26
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select * from t2;
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a
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
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ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
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eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
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gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
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hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
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mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
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nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
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oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
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qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
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rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
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ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
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ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
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uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
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vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
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zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
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drop table t2;
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---- Partitioning and binary data type
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create table t1 (a binary(255) not null, primary key(a)) engine='MyISAM'
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partition by key (a) (
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partition pa1 max_rows=20 min_rows=2,
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partition pa2 max_rows=30 min_rows=3,
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partition pa3 max_rows=30 min_rows=4,
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partition pa4 max_rows=40 min_rows=2);
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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` binary(255) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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/*!50100 PARTITION BY KEY (a)
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(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
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PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
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PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
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PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
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insert into t1 values (repeat('a',255)), ('b'), (repeat('a',128)), (repeat('b',64));
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select hex(a) from t1;
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hex(a)
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616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161
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620000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262620000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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select a from t1 where substr(a,1,2)='b\0';
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a
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b
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update t1 set a='cc' where substr(a,1,2)= 'b\0';
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select a from t1 where substr(a,1,1)='c';
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a
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cc
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delete from t1 where substr(a,1,2)='cc';
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select hex(a) from t1;
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hex(a)
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616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161
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626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262620000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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drop table t1;
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create table t2 (a binary(255) not null, primary key(a)) engine='MyISAM'
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partition by key (a) partitions 27;
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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` binary(255) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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/*!50100 PARTITION BY KEY (a)
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PARTITIONS 27 */
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26 inserts;
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insert into t2 values (repeat(char(ascii('a')+0),26+54));
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insert into t2 values (repeat(char(ascii('a')+1),25+54));
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insert into t2 values (repeat(char(ascii('a')+2),24+54));
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insert into t2 values (repeat(char(ascii('a')+3),23+54));
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insert into t2 values (repeat(char(ascii('a')+4),22+54));
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insert into t2 values (repeat(char(ascii('a')+5),21+54));
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insert into t2 values (repeat(char(ascii('a')+6),20+54));
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insert into t2 values (repeat(char(ascii('a')+7),19+54));
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insert into t2 values (repeat(char(ascii('a')+8),18+54));
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insert into t2 values (repeat(char(ascii('a')+9),17+54));
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insert into t2 values (repeat(char(ascii('a')+10),16+54));
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insert into t2 values (repeat(char(ascii('a')+11),15+54));
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insert into t2 values (repeat(char(ascii('a')+12),14+54));
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insert into t2 values (repeat(char(ascii('a')+13),13+54));
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insert into t2 values (repeat(char(ascii('a')+14),12+54));
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insert into t2 values (repeat(char(ascii('a')+15),11+54));
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insert into t2 values (repeat(char(ascii('a')+16),10+54));
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insert into t2 values (repeat(char(ascii('a')+17),9+54));
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insert into t2 values (repeat(char(ascii('a')+18),8+54));
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insert into t2 values (repeat(char(ascii('a')+19),7+54));
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insert into t2 values (repeat(char(ascii('a')+20),6+54));
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insert into t2 values (repeat(char(ascii('a')+21),5+54));
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insert into t2 values (repeat(char(ascii('a')+22),4+54));
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insert into t2 values (repeat(char(ascii('a')+23),3+54));
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insert into t2 values (repeat(char(ascii('a')+24),2+54));
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insert into t2 values (repeat(char(ascii('a')+25),1+54));
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select count(*) from t2;
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count(*)
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26
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select hex(a) from t2;
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hex(a)
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616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262626262620000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646464646400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565656565650000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A6A00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C6C000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D6D00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E6E0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F6F000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171717171710000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272727272000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474747474740000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575757575000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767676767600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777770000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
797979797979797979797979797979797979797979797979797979797979797979797979797979797979797979797979797979797979797900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A7A0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
|
||
drop table t2;
|
||
---- Partitioning and varchar data type
|
||
create table t1 (a varchar(767) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` varchar(767) NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
|
||
PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
|
||
PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
|
||
PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
|
||
insert into t1 values (repeat('a',767)), ('b'), (repeat('a',500)), (repeat('b',64));
|
||
select * from t1;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
b
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
select * from t1 where a='b';
|
||
a
|
||
b
|
||
update t1 set a='bb' where a='b';
|
||
delete from t1 where a='bb';
|
||
select * from t1;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
drop table t1;
|
||
create table t2 (a varchar(767) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) partitions 27;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`a` varchar(767) NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
PARTITIONS 27 */
|
||
26 inserts;
|
||
insert into t2 values (repeat(char(ascii('a')+0),26*26));
|
||
insert into t2 values (repeat(char(ascii('a')+1),25*25));
|
||
insert into t2 values (repeat(char(ascii('a')+2),24*24));
|
||
insert into t2 values (repeat(char(ascii('a')+3),23*23));
|
||
insert into t2 values (repeat(char(ascii('a')+4),22*22));
|
||
insert into t2 values (repeat(char(ascii('a')+5),21*21));
|
||
insert into t2 values (repeat(char(ascii('a')+6),20*20));
|
||
insert into t2 values (repeat(char(ascii('a')+7),19*19));
|
||
insert into t2 values (repeat(char(ascii('a')+8),18*18));
|
||
insert into t2 values (repeat(char(ascii('a')+9),17*17));
|
||
insert into t2 values (repeat(char(ascii('a')+10),16*16));
|
||
insert into t2 values (repeat(char(ascii('a')+11),15*15));
|
||
insert into t2 values (repeat(char(ascii('a')+12),14*14));
|
||
insert into t2 values (repeat(char(ascii('a')+13),13*13));
|
||
insert into t2 values (repeat(char(ascii('a')+14),12*12));
|
||
insert into t2 values (repeat(char(ascii('a')+15),11*11));
|
||
insert into t2 values (repeat(char(ascii('a')+16),10*10));
|
||
insert into t2 values (repeat(char(ascii('a')+17),9*9));
|
||
insert into t2 values (repeat(char(ascii('a')+18),8*8));
|
||
insert into t2 values (repeat(char(ascii('a')+19),7*7));
|
||
insert into t2 values (repeat(char(ascii('a')+20),6*6));
|
||
insert into t2 values (repeat(char(ascii('a')+21),5*5));
|
||
insert into t2 values (repeat(char(ascii('a')+22),4*4));
|
||
insert into t2 values (repeat(char(ascii('a')+23),3*3));
|
||
insert into t2 values (repeat(char(ascii('a')+24),2*2));
|
||
insert into t2 values (repeat(char(ascii('a')+25),1*1));
|
||
select count(*) from t2;
|
||
count(*)
|
||
26
|
||
select * from t2;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
|
||
ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
|
||
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
||
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
|
||
gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
|
||
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
||
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
||
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
||
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
||
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
|
||
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
|
||
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
|
||
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
|
||
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
|
||
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
|
||
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
|
||
ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
|
||
ttttttttttttttttttttttttttttttttttttttttttttttttt
|
||
uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
|
||
vvvvvvvvvvvvvvvvvvvvvvvvv
|
||
wwwwwwwwwwwwwwww
|
||
xxxxxxxxx
|
||
yyyy
|
||
z
|
||
drop table t2;
|
||
---- Partitioning and varbinary data type
|
||
create table t1 (a varbinary(767) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` varbinary(767) NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
|
||
PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
|
||
PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
|
||
PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
|
||
insert into t1 values (repeat('a',767)), ('b'), (repeat('a',500)), (repeat('b',64));
|
||
select * from t1;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
b
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
select * from t1 where a='b';
|
||
a
|
||
b
|
||
update t1 set a='bb' where a='b';
|
||
delete from t1 where a='bb';
|
||
select * from t1;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
drop table t1;
|
||
create table t2 (a varbinary(767) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`a` varbinary(767) NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
PARTITIONS 30 */
|
||
26 inserts;
|
||
insert into t2 values (repeat(char(ascii('a')+0),26*26));
|
||
insert into t2 values (repeat(char(ascii('a')+1),25*25));
|
||
insert into t2 values (repeat(char(ascii('a')+2),24*24));
|
||
insert into t2 values (repeat(char(ascii('a')+3),23*23));
|
||
insert into t2 values (repeat(char(ascii('a')+4),22*22));
|
||
insert into t2 values (repeat(char(ascii('a')+5),21*21));
|
||
insert into t2 values (repeat(char(ascii('a')+6),20*20));
|
||
insert into t2 values (repeat(char(ascii('a')+7),19*19));
|
||
insert into t2 values (repeat(char(ascii('a')+8),18*18));
|
||
insert into t2 values (repeat(char(ascii('a')+9),17*17));
|
||
insert into t2 values (repeat(char(ascii('a')+10),16*16));
|
||
insert into t2 values (repeat(char(ascii('a')+11),15*15));
|
||
insert into t2 values (repeat(char(ascii('a')+12),14*14));
|
||
insert into t2 values (repeat(char(ascii('a')+13),13*13));
|
||
insert into t2 values (repeat(char(ascii('a')+14),12*12));
|
||
insert into t2 values (repeat(char(ascii('a')+15),11*11));
|
||
insert into t2 values (repeat(char(ascii('a')+16),10*10));
|
||
insert into t2 values (repeat(char(ascii('a')+17),9*9));
|
||
insert into t2 values (repeat(char(ascii('a')+18),8*8));
|
||
insert into t2 values (repeat(char(ascii('a')+19),7*7));
|
||
insert into t2 values (repeat(char(ascii('a')+20),6*6));
|
||
insert into t2 values (repeat(char(ascii('a')+21),5*5));
|
||
insert into t2 values (repeat(char(ascii('a')+22),4*4));
|
||
insert into t2 values (repeat(char(ascii('a')+23),3*3));
|
||
insert into t2 values (repeat(char(ascii('a')+24),2*2));
|
||
insert into t2 values (repeat(char(ascii('a')+25),1*1));
|
||
select count(*) from t2;
|
||
count(*)
|
||
26
|
||
select * from t2;
|
||
a
|
||
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
||
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
||
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
|
||
ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
|
||
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
||
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
|
||
gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
|
||
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
||
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
||
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
||
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
||
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
|
||
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
|
||
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
|
||
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
|
||
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
|
||
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
|
||
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
|
||
ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
|
||
ttttttttttttttttttttttttttttttttttttttttttttttttt
|
||
uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
|
||
vvvvvvvvvvvvvvvvvvvvvvvvv
|
||
wwwwwwwwwwwwwwww
|
||
xxxxxxxxx
|
||
yyyy
|
||
z
|
||
drop table t2;
|
||
---- Partitioning and enum data type
|
||
create table t1 (a enum('A','B','C','D','E','F','G','H','I','J','K','L') not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` enum('A','B','C','D','E','F','G','H','I','J','K','L') NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
|
||
PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
|
||
PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
|
||
PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
|
||
insert into t1 values ('A'),('D'),('L'),('G');
|
||
select * from t1;
|
||
a
|
||
A
|
||
D
|
||
G
|
||
L
|
||
select * from t1 where a='A';
|
||
a
|
||
A
|
||
update t1 set a='E' where a='L';
|
||
select * from t1;
|
||
a
|
||
A
|
||
D
|
||
E
|
||
G
|
||
delete from t1 where a='E';
|
||
select * from t1;
|
||
a
|
||
A
|
||
D
|
||
G
|
||
drop table t1;
|
||
create table t2 (a enum (
|
||
'1','2','3','4','5','6','7','8','9','0',
|
||
'A','B','C','D','E','F','G','H','I','J','K','L',
|
||
'M','N','O','P','Q','R','S','T','U','V','W','X',
|
||
'Y','Z'
|
||
) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) partitions 27;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`a` enum('1','2','3','4','5','6','7','8','9','0','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z') NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
PARTITIONS 27 */
|
||
0 inserts;
|
||
insert into t2 values (char(ascii('A')+26));
|
||
Warnings:
|
||
Warning 1265 Data truncated for column 'a' at row 1
|
||
insert into t2 values (char(ascii('A')+25));
|
||
insert into t2 values (char(ascii('A')+24));
|
||
insert into t2 values (char(ascii('A')+23));
|
||
insert into t2 values (char(ascii('A')+22));
|
||
insert into t2 values (char(ascii('A')+21));
|
||
insert into t2 values (char(ascii('A')+20));
|
||
insert into t2 values (char(ascii('A')+19));
|
||
insert into t2 values (char(ascii('A')+18));
|
||
insert into t2 values (char(ascii('A')+17));
|
||
insert into t2 values (char(ascii('A')+16));
|
||
insert into t2 values (char(ascii('A')+15));
|
||
insert into t2 values (char(ascii('A')+14));
|
||
insert into t2 values (char(ascii('A')+13));
|
||
insert into t2 values (char(ascii('A')+12));
|
||
insert into t2 values (char(ascii('A')+11));
|
||
insert into t2 values (char(ascii('A')+10));
|
||
insert into t2 values (char(ascii('A')+9));
|
||
insert into t2 values (char(ascii('A')+8));
|
||
insert into t2 values (char(ascii('A')+7));
|
||
insert into t2 values (char(ascii('A')+6));
|
||
insert into t2 values (char(ascii('A')+5));
|
||
insert into t2 values (char(ascii('A')+4));
|
||
insert into t2 values (char(ascii('A')+3));
|
||
insert into t2 values (char(ascii('A')+2));
|
||
insert into t2 values (char(ascii('A')+1));
|
||
insert into t2 values ('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9'),('0');
|
||
select count(*) from t2;
|
||
count(*)
|
||
36
|
||
select * from t2;
|
||
a
|
||
|
||
1
|
||
2
|
||
3
|
||
4
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
0
|
||
B
|
||
C
|
||
D
|
||
E
|
||
F
|
||
G
|
||
H
|
||
I
|
||
J
|
||
K
|
||
L
|
||
M
|
||
N
|
||
O
|
||
P
|
||
Q
|
||
R
|
||
S
|
||
T
|
||
U
|
||
V
|
||
W
|
||
X
|
||
Y
|
||
Z
|
||
drop table t2;
|
||
---- Partitioning and set data type
|
||
create table t1 (a set('A','B','C','D','E','F','G','H','I','J','K','L') not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`a` set('A','B','C','D','E','F','G','H','I','J','K','L') NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
(PARTITION pa1 MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = MyISAM,
|
||
PARTITION pa2 MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = MyISAM,
|
||
PARTITION pa3 MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = MyISAM,
|
||
PARTITION pa4 MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = MyISAM) */
|
||
insert into t1 values ('A,B'),('C,D'),('E,L'),('G,H,K');
|
||
select * from t1 order by a;
|
||
a
|
||
A,B
|
||
C,D
|
||
G,H,K
|
||
E,L
|
||
select * from t1 where a='A,B';
|
||
a
|
||
A,B
|
||
update t1 set a='A,B,C' where a='E,L';
|
||
select * from t1 order by a;
|
||
a
|
||
A,B
|
||
A,B,C
|
||
C,D
|
||
G,H,K
|
||
delete from t1 where a='A,B';
|
||
select * from t1 order by a;
|
||
a
|
||
A,B,C
|
||
C,D
|
||
G,H,K
|
||
drop table t1;
|
||
create table t2 (a set (
|
||
'1','2','3','4','5','6','7','8','9','0',
|
||
'A','B','C','D','E','F','G','H','I','J','K','L',
|
||
'M','N','O','P','Q','R','S','T','U','V','W','X',
|
||
'Y','Z'
|
||
) not null, primary key(a)) engine='MyISAM'
|
||
partition by key (a) partitions 27;
|
||
show create table t2;
|
||
Table Create Table
|
||
t2 CREATE TABLE `t2` (
|
||
`a` set('1','2','3','4','5','6','7','8','9','0','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z') NOT NULL,
|
||
PRIMARY KEY (`a`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
/*!50100 PARTITION BY KEY (a)
|
||
PARTITIONS 27 */
|
||
insert into t2 values ('A'),('B'),('C'),('D'),('E'),('F'),('G'),('H'),('I'),('K'),('L'),('M'),('N'),('O'),('P'),('Q'),('S'),('T'),('U'),('V'),('X'),('Y'),('Z');
|
||
insert into t2 values ('A,B'),('B,C'),('C,D'),('D,E'),('E,F'),('F,G'),('G,H'),('H,I'),('I,J'),('K,L'),('L,M'),('M,N'),('N,O'),('O,P'),('P,Q'),('Q,R'),('S,T'),('T,U'),('U,V'),('V,W'),('X,Y'),('Y,Z'),('Z,A');
|
||
insert into t2 values ('A,B,C'),('B,C,D'),('C,D,E'),('D,E,F'),('E,F,G'),('F,G,H'),('G,H,I'),('H,I,J'),('I,J,K'),('K,L,M'),('L,M,N'),('M,N,O'),('N,O,P'),('O,P,Q'),('P,Q,R'),('Q,R,S'),('S,T,U'),('T,U,V'),('U,V,W'),('V,W,X'),('X,Y,Z'),('Y,Z,A'),('Z,A,B');
|
||
insert into t2 values ('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9'),('0');
|
||
insert into t2 values ('1,2'),('2,3'),('3,4'),('4,5'),('5,6'),('6,7'),('7,8'),('8,9'),('9,0'),('0,1');
|
||
insert into t2 values ('1,2,3'),('2,3,4'),('3,4,5'),('4,5,6'),('5,6,7'),('6,7,8'),('7,8,9'),('8,9,0'),('9,0,1'),('0,1,2');
|
||
select count(*) from t2;
|
||
count(*)
|
||
99
|
||
select * from t2 order by a;
|
||
a
|
||
1
|
||
2
|
||
1,2
|
||
3
|
||
2,3
|
||
1,2,3
|
||
4
|
||
3,4
|
||
2,3,4
|
||
5
|
||
4,5
|
||
3,4,5
|
||
6
|
||
5,6
|
||
4,5,6
|
||
7
|
||
6,7
|
||
5,6,7
|
||
8
|
||
7,8
|
||
6,7,8
|
||
9
|
||
8,9
|
||
7,8,9
|
||
0
|
||
1,0
|
||
1,2,0
|
||
9,0
|
||
1,9,0
|
||
8,9,0
|
||
A
|
||
B
|
||
A,B
|
||
C
|
||
B,C
|
||
A,B,C
|
||
D
|
||
C,D
|
||
B,C,D
|
||
E
|
||
D,E
|
||
C,D,E
|
||
F
|
||
E,F
|
||
D,E,F
|
||
G
|
||
F,G
|
||
E,F,G
|
||
H
|
||
G,H
|
||
F,G,H
|
||
I
|
||
H,I
|
||
G,H,I
|
||
I,J
|
||
H,I,J
|
||
K
|
||
I,J,K
|
||
L
|
||
K,L
|
||
M
|
||
L,M
|
||
K,L,M
|
||
N
|
||
M,N
|
||
L,M,N
|
||
O
|
||
N,O
|
||
M,N,O
|
||
P
|
||
O,P
|
||
N,O,P
|
||
Q
|
||
P,Q
|
||
O,P,Q
|
||
Q,R
|
||
P,Q,R
|
||
S
|
||
Q,R,S
|
||
T
|
||
S,T
|
||
U
|
||
T,U
|
||
S,T,U
|
||
V
|
||
U,V
|
||
T,U,V
|
||
V,W
|
||
U,V,W
|
||
X
|
||
V,W,X
|
||
Y
|
||
X,Y
|
||
Z
|
||
A,Z
|
||
A,B,Z
|
||
Y,Z
|
||
A,Y,Z
|
||
X,Y,Z
|
||
drop table t2;
|
||
---- Partitioning and blob data type
|
||
create table t1 (a blob not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a blob not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a tinyblob not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a mediumblob not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a longblob not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
---- Partitioning and text data type
|
||
create table t1 (a text not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) (
|
||
partition pa1 max_rows=20 min_rows=2,
|
||
partition pa2 max_rows=30 min_rows=3,
|
||
partition pa3 max_rows=30 min_rows=4,
|
||
partition pa4 max_rows=40 min_rows=2);
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a tinytext not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a mediumtext not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|
||
create table t2 (a longtext not null, primary key(a(767))) engine='MyISAM'
|
||
partition by key (a) partitions 30;
|
||
ERROR HY000: A BLOB field is not allowed in partition function
|