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DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a int, b int, c int, d int, PRIMARY KEY(a,b,c))
ENGINE = NDB
PARTITION BY KEY (a,b);
insert into t1 values (1,1,1,1);
select * from t1;
a b c d
1 1 1 1
update t1 set d = 2 where a = 1 and b = 1 and c = 1;
select * from t1;
a b c d
1 1 1 2
delete from t1;
select * from t1;
a b c d
drop table t1;
CREATE TABLE t1 (a int, b int, c int, d int, PRIMARY KEY(a,b))
ENGINE = NDB
PARTITION BY KEY (c);
ERROR HY000: A PRIMARY KEY need to include all fields in the partition function
CREATE TABLE t1 (a int, b int, c int, PRIMARY KEY(a,b))
ENGINE = NDB
PARTITION BY KEY (a);
insert into t1 values
(1,1,3),(1,2,3),(1,3,3),(1,4,3),(1,5,3),(1,6,3),
(1,7,3),(1,8,3),(1,9,3),(1,10,3),(1,11,3),(1,12,3);
select * from t1 order by b;
a b c
1 1 3
1 2 3
1 3 3
1 4 3
1 5 3
1 6 3
1 7 3
1 8 3
1 9 3
1 10 3
1 11 3
1 12 3
DROP TABLE t1;
CREATE TABLE t1 (a INT, b CHAR(10) COLLATE latin1_bin, c INT, d INT,
PRIMARY KEY USING HASH (a,b,c))
ENGINE=NDB
DEFAULT CHARSET=latin1
PARTITION BY KEY (b);
insert into t1 values (1,"a",1,1),(2,"a",1,1),(3,"a",1,1);
-- t1 --
Fragment type: 5
K Value: 6
Min load factor: 78
Max load factor: 80
Temporary table: no
Number of attributes: 4
Number of primary keys: 3
Length of frm data: #
Row Checksum: 1
Row GCI: 1
TableStatus: Retrieved
-- Attributes --
a Int PRIMARY KEY AT=FIXED ST=MEMORY
b Char(10;latin1_bin) PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY
c Int PRIMARY KEY AT=FIXED ST=MEMORY
d Int NULL AT=FIXED ST=MEMORY
-- Indexes --
PRIMARY KEY(a, b, c) - UniqueHashIndex
NDBT_ProgramExit: 0 - OK
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL default '0',
`b` char(10) character set latin1 collate latin1_bin NOT NULL default '',
`c` int(11) NOT NULL default '0',
`d` int(11) default NULL,
PRIMARY KEY USING HASH (`a`,`b`,`c`)
) ENGINE=ndbcluster DEFAULT CHARSET=latin1 PARTITION BY KEY (b)
DROP TABLE t1;
CREATE TABLE t1 (a int not null primary key)
PARTITION BY KEY(a)
(PARTITION p0 ENGINE = NDB, PARTITION p1 ENGINE = NDB);
drop table t1;
CREATE TABLE t1 (a int not null primary key);
ALTER TABLE t1
PARTITION BY KEY(a)
(PARTITION p0 ENGINE = NDB, PARTITION p1 ENGINE = NDB);
drop table t1;
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