398 lines
11 KiB
Plaintext
398 lines
11 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a int, b int, c int, d int, PRIMARY KEY(a,b,c))
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ENGINE = NDB
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PARTITION BY KEY (a,b);
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insert into t1 values (1,1,1,1);
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select * from t1;
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a b c d
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1 1 1 1
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update t1 set d = 2 where a = 1 and b = 1 and c = 1;
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select * from t1;
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a b c d
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1 1 1 2
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delete from t1;
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select * from t1;
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a b c d
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drop table t1;
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CREATE TABLE t1 (a int, b int, c int, d int, PRIMARY KEY(a,b))
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ENGINE = NDB
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PARTITION BY KEY (c);
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ERROR HY000: A PRIMARY KEY must include all columns in the table's partitioning function
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CREATE TABLE t1 (a int, b int, c int, PRIMARY KEY(a,b))
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ENGINE = NDB
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PARTITION BY KEY (a);
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ALTER TABLE t1 ALGORITHM=INPLACE, REORGANIZE PARTITION;
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insert into t1 values
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(1,1,3),(1,2,3),(1,3,3),(1,4,3),(1,5,3),(1,6,3),
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(1,7,3),(1,8,3),(1,9,3),(1,10,3),(1,11,3),(1,12,3);
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select * from t1 order by b;
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a b c
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1 1 3
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1 2 3
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1 3 3
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1 4 3
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1 5 3
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1 6 3
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1 7 3
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1 8 3
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1 9 3
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1 10 3
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1 11 3
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1 12 3
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select max(b) from t1 where a = 1;
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max(b)
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12
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select b from t1 where a = 1 order by b desc;
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b
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12
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11
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10
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9
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8
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7
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6
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5
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4
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3
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2
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1
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DROP TABLE t1;
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CREATE TABLE t1 (a INT, b CHAR(10) COLLATE latin1_bin, c INT, d INT,
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PRIMARY KEY (a,b,c) USING HASH)
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ENGINE=NDB
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DEFAULT CHARSET=latin1
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PARTITION BY KEY (b);
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insert into t1 values (1,"a",1,1),(2,"a",1,1),(3,"a",1,1);
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Attributes:
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a Int PRIMARY KEY AT=FIXED ST=MEMORY
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b Char(10;latin1_bin) PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY
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c Int PRIMARY KEY AT=FIXED ST=MEMORY
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d Int NULL AT=FIXED ST=MEMORY
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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` int(11) NOT NULL,
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`b` char(10) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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`c` int(11) NOT NULL,
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`d` int(11) DEFAULT NULL,
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PRIMARY KEY (`a`,`b`,`c`) USING HASH
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) ENGINE=ndbcluster DEFAULT CHARSET=latin1
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/*!50100 PARTITION BY KEY (b) */
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DROP TABLE t1;
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CREATE TABLE t1 (a int not null primary key)
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PARTITION BY KEY(a)
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(PARTITION p0 ENGINE = NDB, PARTITION p1 ENGINE = NDB);
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drop table t1;
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CREATE TABLE t1 (a int not null primary key);
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ALTER TABLE t1 ALGORITHM=COPY,
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ENGINE = NDB
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PARTITION BY KEY(a)
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(PARTITION p0 ENGINE = NDB, PARTITION p1 ENGINE = NDB);
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drop table t1;
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CREATE TABLE t1 (a int not null primary key) ENGINE = NDB;
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ALTER TABLE t1
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PARTITION BY KEY(a)
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(PARTITION p0 ENGINE = NDB, PARTITION p1 ENGINE = NDB);
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drop table t1;
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create table t1 (a int primary key)
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engine=ndb
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partition by key(a)
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(partition p0, partition p1);
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = ndbcluster,
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PARTITION p1 ENGINE = ndbcluster) */
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alter table t1 engine=innodb;
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = InnoDB,
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PARTITION p1 ENGINE = InnoDB) */
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alter table t1 engine=ndb;
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = ndbcluster,
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PARTITION p1 ENGINE = ndbcluster) */
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alter table t1 engine=innodb 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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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alter table t1 engine=ndb
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partition by key(a)
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(partition p0, partition p1 engine = ndb);
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = ndbcluster,
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PARTITION p1 ENGINE = ndbcluster) */
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alter table t1
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partition by key (a)
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(partition p0 engine=ndb, partition p1 engine=ndb);
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = ndbcluster,
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PARTITION p1 ENGINE = ndbcluster) */
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alter table t1 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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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alter table t1
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partition by key(a)
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(partition p0 engine=ndb, partition p1);
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alter table t1
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engine=ndb
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partition by key(a)
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(partition p0 engine=ndb, partition p1 engine = ndb);
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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` int(11) NOT NULL,
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PRIMARY KEY (`a`)
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) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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/*!50100 PARTITION BY KEY (a)
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(PARTITION p0 ENGINE = ndbcluster,
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PARTITION p1 ENGINE = ndbcluster) */
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drop table t1;
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CREATE TABLE t1 (
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c1 MEDIUMINT NOT NULL AUTO_INCREMENT,
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c2 TEXT NOT NULL,
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c3 INT NOT NULL,
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c4 BIT NOT NULL,
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c5 FLOAT,
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c6 VARCHAR(255),
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c7 TIMESTAMP,
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PRIMARY KEY(c1,c3))
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ENGINE=NDB
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PARTITION BY KEY(c3) PARTITIONS 5;
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ALTER TABLE t1 ALGORITHM=COPY, COALESCE PARTITION 4;
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DROP TABLE t1;
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CREATE TABLE t1 (a int primary key)
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ENGINE=NDB
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PARTITION BY KEY(a);
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check note The storage engine for the table doesn't support check
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OPTIMIZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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REPAIR TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 repair note The storage engine for the table doesn't support repair
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ALTER TABLE t1 ALGORITHM=INPLACE, OPTIMIZE PARTITION p0;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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ALTER TABLE t1 ALGORITHM=INPLACE, CHECK PARTITION p0;
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Table Op Msg_type Msg_text
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test.t1 check note The storage engine for the table doesn't support check
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ALTER TABLE t1 ALGORITHM=INPLACE, REPAIR PARTITION p0;
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Table Op Msg_type Msg_text
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test.t1 repair note The storage engine for the table doesn't support repair
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ALTER TABLE t1 ALGORITHM=INPLACE, ANALYZE PARTITION p0;
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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 ALGORITHM=INPLACE, REBUILD PARTITION p0;
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ERROR HY000: Table storage engine for 't1' doesn't have this option
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DROP TABLE t1;
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CREATE TABLE t1 (
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c1 MEDIUMINT NOT NULL AUTO_INCREMENT,
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c2 TEXT NOT NULL,
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c3 INT NOT NULL,
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PRIMARY KEY(c1,c3))
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ENGINE=NDB
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PARTITION BY KEY(c3) PARTITIONS 5;
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ALTER TABLE t1 ADD COLUMN c4 INT AFTER c1;
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DROP TABLE t1;
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CREATE TABLE t1 (
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c1 MEDIUMINT NOT NULL AUTO_INCREMENT,
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c2 TEXT NOT NULL,
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c3 INT NOT NULL,
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PRIMARY KEY(c1,c3))
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ENGINE=NDB
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PARTITION BY KEY(c3)
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(PARTITION p0 NODEGROUP 0, PARTITION p1 NODEGROUP 0);
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ALTER TABLE t1 ADD COLUMN c4 INT AFTER c1;
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SELECT NODEGROUP,PARTITION_NAME FROM information_schema.partitions WHERE
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table_name = "t1";
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NODEGROUP PARTITION_NAME
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0 p0
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0 p1
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DROP TABLE t1;
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CREATE TABLE t1 (
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a tinyint unsigned NOT NULL,
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b bigint(20) unsigned NOT NULL,
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c char(12),
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PRIMARY KEY (a,b)
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) ENGINE ndb DEFAULT CHARSET=latin1 PARTITION BY KEY (a);
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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insert into t1 values(1,1,'1'), (2,2,'2'), (3,3,'3'), (4,4,'4'), (5,5,'5');
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select * from t1 where a = 1;
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a b c
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1 1 1
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select * from t1 where a = 2;
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a b c
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2 2 2
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select * from t1 where a = 3;
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a b c
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3 3 3
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select * from t1 where a = 4;
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a b c
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4 4 4
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select * from t1 where a = 5;
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a b c
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5 5 5
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delete from t1 where a = 1;
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select * from t1 order by 1;
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a b c
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2 2 2
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3 3 3
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4 4 4
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5 5 5
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delete from t1 where a = 2;
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select * from t1 order by 1;
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a b c
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3 3 3
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4 4 4
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5 5 5
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delete from t1 where a = 3;
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select * from t1 order by 1;
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a b c
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4 4 4
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5 5 5
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delete from t1 where a = 4;
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select * from t1 order by 1;
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a b c
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5 5 5
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delete from t1 where a = 5;
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select * from t1 order by 1;
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a b c
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drop table t1;
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create table nott1 (a int,
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b int,
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c int,
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primary key(a,b))
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engine=ndb partition by key(a);
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insert into nott1 values (0,0,0);
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insert into nott1 values (0,1,1);
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insert into nott1 values (0,2,2);
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insert into nott1 values (0,3,3);
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insert into nott1 values (1,0,4);
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insert into nott1 values (1,1,5);
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insert into nott1 values (1,2,6);
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insert into nott1 values (2,22,7);
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All partitions scan
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select * from nott1 order by c;
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a b c
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0 0 0
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0 1 1
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0 2 2
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0 3 3
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1 0 4
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1 1 5
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1 2 6
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2 22 7
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ndb_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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ndb_pruned_scan_count
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0
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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Single partition scan
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select * from nott1 where a=0 order by c;
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a b c
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0 0 0
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0 1 1
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0 2 2
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0 3 3
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ndb_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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ndb_pruned_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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Single partition scan
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select * from nott1 where a=4 order by c;
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a b c
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ndb_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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ndb_pruned_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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MRR scan on one partition
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select * from nott1 where a=0 and (( b > 0 and b < 3) or
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( b > 5 and b < 10) or
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( b > 22 and b < 50)) order by c;
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a b c
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0 1 1
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0 2 2
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ndb_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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ndb_pruned_scan_count
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1
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Warnings:
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Warning 1287 Setting user variables within expressions is deprecated and will be removed in a future release. Consider alternatives: 'SET variable=expression, ...', or 'SELECT expression(s) INTO variables(s)'.
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drop table nott1;
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CREATE TABLE t1 (
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a char(10) NOT NULL,
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b char(1) NOT NULL,
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PRIMARY KEY (a,b)
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) ENGINE ndb DEFAULT CHARSET=latin1 COLLATE=latin1_german2_ci
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PARTITION BY KEY (a);
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insert into t1 values ('a', 'a'), ('b', 'b');
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select * from t1 where a = 'a';
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a b
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a a
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drop table t1;
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CREATE TABLE t1 (
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a varchar(3000) NOT NULL,
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b char(1) NOT NULL,
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PRIMARY KEY (a,b)
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) ENGINE ndb DEFAULT CHARSET=latin1 COLLATE=latin1_german2_ci
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PARTITION BY KEY (a);
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insert into t1 values ('a', 'a'), ('b', 'b');
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select * from t1 where a = 'a';
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a b
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a a
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drop table t1;
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