drop table if exists t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key(a,b),
index (a))
engine = ndb
partition by range (a)
partitions 3
(partition x1 values less than (5),
partition x2 values less than (10),
partition x3 values less than (20));
INSERT into t1 values (1, 1, 1);
INSERT into t1 values (6, 1, 1);
INSERT into t1 values (10, 1, 1);
INSERT into t1 values (15, 1, 1);
select * from information_schema.partitions where table_name= 't1';
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	PARTITION_NAME	SUBPARTITION_NAME	PARTITION_ORDINAL_POSITION	SUBPARTITION_ORDINAL_POSITION	PARTITION_METHOD	SUBPARTITION_METHOD	PARTITION_EXPRESSION	SUBPARTITION_EXPRESSION	PARTITION_DESCRIPTION	TABLE_ROWS	AVG_ROW_LENGTH	DATA_LENGTH	MAX_DATA_LENGTH	INDEX_LENGTH	DATA_FREE	CREATE_TIME	UPDATE_TIME	CHECK_TIME	CHECKSUM	PARTITION_COMMENT	NODEGROUP	TABLESPACE_NAME
NULL	test	t1	x1	NULL	1	NULL	RANGE	NULL	a	NULL	5	1	40	32768	#	0	0	#	#	NULL	NULL		default	NULL
NULL	test	t1	x2	NULL	2	NULL	RANGE	NULL	a	NULL	10	1	40	32768	#	0	0	#	#	NULL	NULL		default	NULL
NULL	test	t1	x3	NULL	3	NULL	RANGE	NULL	a	NULL	20	2	40	32768	#	0	0	#	#	NULL	NULL		default	NULL
select * from t1 order by a;
a	b	c
1	1	1
6	1	1
10	1	1
15	1	1
select * from t1 where a=1 order by a;
a	b	c
1	1	1
select * from t1 where a=15 and b=1 order by a;
a	b	c
15	1	1
select * from t1 where a=21 and b=1 order by a;
a	b	c
select * from t1 where a=21 order by a;
a	b	c
select * from t1 where a in (1,6,10,21) order by a;
a	b	c
1	1	1
6	1	1
10	1	1
select * from t1 where b=1 and a in (1,6,10,21) order by a;
a	b	c
1	1	1
6	1	1
10	1	1
INSERT into t1 values (1, 2, 2);
select max(b) from t1 where a = 1;
max(b)
2
select b from t1 where a = 1 order by b desc;
b
2
1
drop table t1;
CREATE TABLE t1 (
a int not null,
b int not null,
c int not null,
primary key(b),
unique (a))
engine = ndb
partition by range (b)
partitions 3
(partition x1 values less than (5),
partition x2 values less than (10),
partition x3 values less than (20));
INSERT into t1 values (1, 1, 1);
INSERT into t1 values (2, 6, 1);
INSERT into t1 values (3, 10, 1);
INSERT into t1 values (4, 15, 1);
select * from t1 order by a;
a	b	c
1	1	1
2	6	1
3	10	1
4	15	1
UPDATE t1 set a = 5 WHERE b = 15;
select * from t1 order by a;
a	b	c
1	1	1
2	6	1
3	10	1
5	15	1
UPDATE t1 set a = 6 WHERE a = 5;
select * from t1 order by a;
a	b	c
1	1	1
2	6	1
3	10	1
6	15	1
select * from t1 where b=1 order by b;
a	b	c
1	1	1
select * from t1 where b=15 and a=1 order by b;
a	b	c
select * from t1 where b=21 and a=1 order by b;
a	b	c
select * from t1 where b=21 order by b;
a	b	c
select * from t1 where b in (1,6,10,21) order by b;
a	b	c
1	1	1
2	6	1
3	10	1
select * from t1 where a in (1,2,5,6) order by b;
a	b	c
1	1	1
2	6	1
6	15	1
select * from t1 where a=1 and b in (1,6,10,21) order by b;
a	b	c
1	1	1
select * from t1 where b=6;
a	b	c
2	6	1
DELETE from t1 WHERE b = 6;
select * from t1 where b=6;
a	b	c
select * from t1 where a=6;
a	b	c
6	15	1
UPDATE t1 SET c=1001 WHERE a=6;
select * from t1 where a=6;
a	b	c
6	15	1001
DELETE from t1 WHERE a = 6;
select * from t1 where a=6;
a	b	c
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) NOT NULL,
  `c` int(11) NOT NULL,
  PRIMARY KEY (`b`),
  UNIQUE KEY `a` (`a`)
) ENGINE=ndbcluster DEFAULT CHARSET=latin1
/*!50100 PARTITION BY RANGE (b)
(PARTITION x1 VALUES LESS THAN (5) ENGINE = ndbcluster,
 PARTITION x2 VALUES LESS THAN (10) ENGINE = ndbcluster,
 PARTITION x3 VALUES LESS THAN (20) ENGINE = ndbcluster) */
drop table t1;
CREATE TABLE t1
(id MEDIUMINT NOT NULL,
b1 BIT(8),
vc VARCHAR(255),
bc CHAR(255),
d DECIMAL(10,4) DEFAULT 0,
f FLOAT DEFAULT 0,
total BIGINT UNSIGNED,
y YEAR,
t DATE PRIMARY KEY) ENGINE=NDB
PARTITION BY RANGE (YEAR(t))
(PARTITION p0 VALUES LESS THAN (1901),
PARTITION p1 VALUES LESS THAN (1946),
PARTITION p2 VALUES LESS THAN (1966),
PARTITION p3 VALUES LESS THAN (1986),
PARTITION p4 VALUES LESS THAN (2005),
PARTITION p5 VALUES LESS THAN MAXVALUE);
INSERT INTO t1 VALUES (0,NULL,NULL,NULL,NULL,NULL,NULL,NULL, '2009-05-15');
SELECT * FROM t1;
id	b1	vc	bc	d	f	total	y	t
0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	2009-05-15
ALTER TABLE t1 ENGINE=MYISAM;
SELECT * FROM t1;
id	b1	vc	bc	d	f	total	y	t
0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	2009-05-15
DROP TABLE t1;
CREATE LOGFILE GROUP lg1
ADD UNDOFILE 'undofile.dat'
  INITIAL_SIZE 16M
UNDO_BUFFER_SIZE=1M
ENGINE=NDB;
CREATE TABLESPACE ts1
ADD DATAFILE 'datafile.dat'
  USE LOGFILE GROUP lg1
INITIAL_SIZE 12M
EXTENT_SIZE 256k
ENGINE NDB;
CREATE TABLE test.t1 (
a1 INT,
a2 TEXT NOT NULL,
a3 BIT NOT NULL,
a4 DECIMAL(8,3),
a5 INT NOT NULL,
a6 INT,
PRIMARY KEY(a1))
TABLESPACE ts1 STORAGE DISK ENGINE=NDB
PARTITION BY LIST (a1)
(PARTITION p0 VALUES IN (1,2,3,4,5),
PARTITION p1 VALUES IN (6,7,8,9, 10),
PARTITION p2 VALUES IN (11, 12, 13, 14, 15));
ALTER TABLE test.t1 DROP COLUMN a6;
ALTER TABLE test.t1 ADD COLUMN a6 VARCHAR(255);
SELECT COUNT(*) FROM test.t1;
COUNT(*)
15
ALTER TABLE test.t1 DROP COLUMN a4;
SELECT COUNT(*) FROM test.t1;
COUNT(*)
15
DROP TABLE t1;
CREATE TABLE test.t1 (
a1 INT,
a2 TEXT NOT NULL,
a3 BIT NOT NULL,
a4 DECIMAL(8,3),
a5 INT NOT NULL,
a6 VARCHAR(255),
PRIMARY KEY(a1))
TABLESPACE ts1 STORAGE DISK ENGINE=NDB
PARTITION BY HASH(a1)
PARTITIONS 4;
SELECT COUNT(*) FROM test.t1;
COUNT(*)
15
ALTER TABLE test.t1 DROP COLUMN a4;
SELECT COUNT(*) FROM test.t1;
COUNT(*)
15
DROP TABLE t1;
ALTER TABLESPACE ts1 
DROP DATAFILE 'datafile.dat' 
ENGINE=NDB;
DROP TABLESPACE ts1 ENGINE=NDB;
DROP LOGFILE GROUP lg1 ENGINE=NDB;
CREATE TABLE t1
(id MEDIUMINT NOT NULL PRIMARY KEY,
b1 BIT(8),
vc VARCHAR(255),
bc CHAR(255),
d DECIMAL(10,4) DEFAULT 0,
f FLOAT DEFAULT 0,
total BIGINT UNSIGNED,
y YEAR,
t DATE) ENGINE=NDB
PARTITION BY LIST(id)
(PARTITION p0 VALUES IN (2, 4),
PARTITION p1 VALUES IN (42, 142));
INSERT INTO t1 VALUES (2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);
SELECT * FROM t1;
id	b1	vc	bc	d	f	total	y	t
2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
ALTER TABLE t1 ADD PARTITION
(PARTITION p2 VALUES IN (412));
SELECT * FROM t1;
id	b1	vc	bc	d	f	total	y	t
2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
DROP TABLE t1;
CREATE TABLE t1 (
a int not null PRIMARY KEY,
b int not null,
c int not null)
partition by list(a)
partitions 2
(partition x123 values in (1,5,6),
partition x234 values in (4,7,8));
INSERT into t1 VALUES (5,1,1);
select * from t1;
a	b	c
5	1	1
UPDATE t1 SET a=8 WHERE a=5 AND b=1;
select * from t1;
a	b	c
8	1	1
drop table t1;
CREATE TABLE t1 ( f1 INTEGER PRIMARY KEY, f2 char(20)) engine=ndb
PARTITION BY RANGE(f1)
( PARTITION part1 VALUES LESS THAN (2),
PARTITION part2 VALUES LESS THAN (1000));
INSERT INTO t1 VALUES(1, '---1---');
INSERT INTO t1 VALUES(2, '---2---');
select * from t1 order by f1;
f1	f2
1	---1---
2	---2---
UPDATE t1 SET f1 = f1 + 4 WHERE f1 = 2;
select * from t1 order by f1;
f1	f2
1	---1---
6	---2---
UPDATE t1 SET f1 = f1 + 4 WHERE f1 = 1;
select * from t1 order by f1;
f1	f2
5	---1---
6	---2---
drop table t1;
create table t1 ( a int, b int, c int, primary key (a,b)) engine=ndb 
partition by range (a)
(partition part0 values less than (3),
partition part1 values less than (6));
insert into t1 values (0, 0, 0);
insert into t1 values (0, 1, 1);
insert into t1 values (0, 2, 2);
insert into t1 values (1, 0, 3);
insert into t1 values (1, 1, 4);
insert into t1 values (1, 2, 5);
insert into t1 values (4, 0, 6);
insert into t1 values (4, 1, 7);
insert into t1 values (4, 2, 8);
All partitions scan
select * from t1 order by c;
a	b	c
0	0	0
0	1	1
0	2	2
1	0	3
1	1	4
1	2	5
4	0	6
4	1	7
4	2	8
ndb_scan_count
1
ndb_pruned_scan_count
0
Single partition scan
select * from t1 where a=0 order by c;
a	b	c
0	0	0
0	1	1
0	2	2
ndb_scan_count
1
ndb_pruned_scan_count
1
Single partition scan
select * from t1 where a=4 order by c;
a	b	c
4	0	6
4	1	7
4	2	8
ndb_scan_count
1
ndb_pruned_scan_count
1
Single partition scan
select * from t1 where a<3 order by c;
a	b	c
0	0	0
0	1	1
0	2	2
1	0	3
1	1	4
1	2	5
ndb_scan_count
1
ndb_pruned_scan_count
1
MRR single partition scan
select * from t1 where a in (0, 2) order by c;
a	b	c
0	0	0
0	1	1
0	2	2
ndb_scan_count
1
ndb_pruned_scan_count
1
drop table t1;