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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 (
ol_o_id int NOT NULL,
ol_d_id int NOT NULL,
ol_w_id int NOT NULL,
ol_number int NOT NULL,
ol_tmp int,
PRIMARY KEY (ol_w_id, ol_d_id, ol_o_id, ol_number)
) ENGINE=NDB
PARTITION BY HASH (ol_w_id);
insert into t1 values (1,0,0,0,0),(1,0,0,1,0),(1,0,0,2,0),(1,1,0,0,0),(1,1,0,1,0);
insert into t1 values (2,0,0,0,0),(4,0,0,0,0),(4,0,0,1,0);
insert into t1 values (0,1,1,4,0),(0,1,1,5,0);
SELECT * FROM t1 WHERE ol_w_id = 1 AND ol_d_id = 1 AND ol_o_id = 0;
ol_o_id ol_d_id ol_w_id ol_number ol_tmp
0 1 1 4 0
0 1 1 5 0
SELECT SUM(ol_number) FROM t1 WHERE ol_o_id = 0 AND ol_w_id = 1 AND ol_d_id = 1;
SUM(ol_number)
9
drop table t1;
CREATE TABLE t1 ( f_int1 INTEGER NOT NULL, f_int2 INTEGER NOT NULL,
f_char1 CHAR(10),
f_char2 CHAR(10), f_charbig VARCHAR(1000),
PRIMARY KEY (f_int1,f_int2))
ENGINE = NDB
PARTITION BY LIST(MOD(f_int1 + f_int2,4))
(PARTITION part_3 VALUES IN (-3),
PARTITION part_2 VALUES IN (-2),
PARTITION part_1 VALUES IN (-1),
PARTITION part0 VALUES IN (0),
PARTITION part1 VALUES IN (1),
PARTITION part2 VALUES IN (2),
PARTITION part3 VALUES IN (3,4,5));
INSERT INTO t1 SET f_int1 = -2, f_int2 = 20, f_char1 = '20', f_char2 = '20', f_charbig = '===20===';
INSERT INTO t1 SET f_int1 = 1, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
INSERT INTO t1 SET f_int1 = 2, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
INSERT INTO t1 SET f_int1 = 3, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
INSERT INTO t1 SET f_int1 = 4, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
INSERT INTO t1 SET f_int1 = 5, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
INSERT INTO t1 SET f_int1 = 20, f_int2 = 1, f_char1 = '1', f_char2 = '1', f_charbig = '===1===';
SELECT * FROM t1 ORDER BY f_int1;
f_int1 f_int2 f_char1 f_char2 f_charbig
-2 20 20 20 ===20===
1 1 1 1 ===1===
2 1 1 1 ===1===
3 1 1 1 ===1===
4 1 1 1 ===1===
5 1 1 1 ===1===
20 1 1 1 ===1===
DROP TABLE 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 t1 order by a;
a b c
1 1 1
6 1 1
10 1 1
15 1 1
drop table t1;
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