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tuhaihe merged 1 commit into from
Aug 19, 2024
Merged

Doc: update the alter table help command content #574

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26 changes: 10 additions & 16 deletions doc/src/sgml/ref/alter_table.sgml
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Original file line number Diff line number Diff line change
Expand Up @@ -42,12 +42,7 @@ ALTER TABLE [ IF EXISTS ] [ONLY] name SET
WITH (REORGANIZE=true|false)
| DISTRIBUTED BY (column_name, [ ... ] )
| DISTRIBUTED RANDOMLY
| DISTRIBUTED REPLICATED

ALTER TABLE name
[ ALTER PARTITION { partition_name | FOR (RANK(number))
| FOR (value) } partition_action [...] ]
partition_action
| DISTRIBUTED REPLICATED

<phrase>where <replaceable class="parameter">action</replaceable> is one of:</phrase>

Expand Down Expand Up @@ -146,22 +141,21 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM

{ <replaceable class="parameter">column_name</replaceable> | ( <replaceable class="parameter">expression</replaceable> ) } [ <replaceable class="parameter">opclass</replaceable> ] [ ASC | DESC ] [ NULLS { FIRST | LAST } ]

ALTER TABLE name
[ ALTER PARTITION { partition_name | FOR (value) } ] partition_action [...]

where partition_action is one of:
ALTER DEFAULT PARTITION
DROP DEFAULT PARTITION [IF EXISTS]
DROP PARTITION [IF EXISTS] { partition_name |
FOR (RANK(number)) | FOR (value) } [CASCADE]
DROP PARTITION [IF EXISTS] { partition_name | FOR (value) } [CASCADE]
TRUNCATE DEFAULT PARTITION
TRUNCATE PARTITION { partition_name | FOR (RANK(number)) |
FOR (value) }
TRUNCATE PARTITION { partition_name | FOR (value) }
RENAME DEFAULT PARTITION TO new_partition_name
RENAME PARTITION { partition_name | FOR (RANK(number)) |
FOR (value) } TO new_partition_name
RENAME PARTITION { partition_name | FOR (value) } TO new_partition_name
ADD DEFAULT PARTITION name [ ( subpartition_spec ) ]
ADD PARTITION [name] partition_element
[ ( subpartition_spec ) ]
EXCHANGE PARTITION { partition_name | FOR (RANK(number)) |
FOR (value) } WITH TABLE table_name
EXCHANGE PARTITION { partition_name | FOR (value) } WITH TABLE table_name
[ WITH | WITHOUT VALIDATION ]
EXCHANGE DEFAULT PARTITION WITH TABLE table_name
[ WITH | WITHOUT VALIDATION ]
Expand All @@ -172,8 +166,7 @@ where partition_action is one of:
END([datatype] range_value) [INCLUSIVE | EXCLUSIVE] }
[ INTO ( PARTITION new_partition_name,
PARTITION default_partition_name ) ]
SPLIT PARTITION { partition_name | FOR (RANK(number)) |
FOR (value) } AT (value)
SPLIT PARTITION { partition_name | FOR (value) } AT (value)
[ INTO (PARTITION partition_name, PARTITION partition_name)]

where partition_element is:
Expand All @@ -186,6 +179,7 @@ where partition_element is:

where subpartition_spec is:
subpartition_element [, ...]

and subpartition_element is:
DEFAULT SUBPARTITION subpartition_name
| [SUBPARTITION subpartition_name] VALUES (list_value [,...] )
Expand Down