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

时间：2024-11-02 18:52:15

云数据库 GAUSSDB

语法格式

CREATE TABLE [ IF NOT EXISTS ] partition_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 (partition_key) [ INTERVAL ('interval_expr') [ STORE IN (tablespace_name [, ... ] ) ] ] ( partition_less_than_item [, ... ] )} |
        {RANGE (partition_key) [ INTERVAL ('interval_expr') [ STORE IN (tablespace_name [, ... ] ) ] ] ( partition_start_end_item [, ... ] )} |
        {LIST (partition_key) ( PARTITION partition_name VALUES (list_values) [TABLESPACE tablespace_name][, ... ]）} |
        {HASH (partition_key) ( PARTITION partition_name [TABLESPACE tablespace_name][, ... ]）}
    } [ { 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 PARTITION:语法格式

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

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语法格式

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