云数据库 GAUSSDB-CREATE TABLE SUBPARTITION:语法格式

时间：2025-03-03 09:51:19

云数据库 GAUSSDB

语法格式

CREATE TABLE [ IF NOT EXISTS ] subpartition_table_name
( 
{ column_name data_type [ COLLATE collation ] [ column_constraint [ ... ] ]
| table_constraint
| LIKE source_table [ like_option [...] ] }[, ... ]
)
[ WITH ( {storage_parameter = value} [, ... ] ) ]
[ TABLESPACE tablespace_name ]
PARTITION BY {RANGE | LIST | HASH} (partition_key) SUBPARTITION BY {RANGE | LIST | HASH} (subpartition_key)
(
  PARTITION partition_name1 [ VALUES LESS THAN (val1) | VALUES (val1[, …]) ] [ TABLESPACE tablespace ]
  [(
       { SUBPARTITION subpartition_name1 [ VALUES LESS THAN (val1_1) | VALUES (val1_1[, …])]  [ TABLESPACE tablespace ] } [, ...]
  )][, ...]
)[ { ENABLE | DISABLE } ROW MOVEMENT ];

列约束column_constraint：

[ CONSTRAINT constraint_name ]
{ NOT NULL |
  NULL | 
  CHECK ( expression ) | 
  DEFAULT default_e xpr | 
  GENERATED ALWAYS AS ( generation_expr ) STORED |
  UNIQUE index_parameters | 
  PRIMARY KEY index_parameters |
  REFEREN CES  reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ]
        [ ON DELETE action ] [ ON UPDATE action ] }
[ DEFERRABLE | NOT DEFERRABLE | INITIALLY DEFERRED | INITIALLY IMMEDIATE ]

表约束table_constraint：

[ CONSTRAINT constraint_name ]
{ CHECK ( expression ) | 
  UNIQUE ( column_name [, ... ] ) index_parameters | 
  PRIMARY KEY ( column_name [, ... ] ) index_parameters |
  FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ]
      [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE action ] [ ON UPDATE action ] }
[ DEFERRABLE | NOT DEFERRABLE | INITIALLY DEFERRED | INITIALLY IMMEDIATE ]

like选项like_option：

{ INCLUDING | EXCLUDING } { DEFAULTS | GENERATED | CONSTRAINTS | INDEXES | STORAGE | COMMENTS | RELOPTIONS| ALL }

索引存储参数index_parameters：

[ WITH ( {storage_parameter = value} [, ... ] ) ]
[ USING INDEX TABLESPACE tablespace_name ]

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云数据库 GAUSSDB-CREATE TABLE SUBPARTITION:语法格式

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云数据库 GAUSSDB-CREATE TABLE SUBPARTITION:语法格式

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语法格式

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