Re: Syntax for partitioning
От | Peter Eisentraut |
---|---|
Тема | Re: Syntax for partitioning |
Дата | |
Msg-id | 1256854257.9673.1.camel@vanquo.pezone.net обсуждение исходный текст |
Ответ на | Syntax for partitioning (Itagaki Takahiro <itagaki.takahiro@oss.ntt.co.jp>) |
Ответы |
Re: Syntax for partitioning
Re: Syntax for partitioning |
Список | pgsql-hackers |
On tor, 2009-10-29 at 11:15 +0900, Itagaki Takahiro wrote: > Range partitioning: > CREATE TABLE table_name ( columns ) > PARTITION BY RANGE ( a_expr ) > ( > PARTITION name VALUES LESS THAN [(] const [)], > PARTITION name VALUES LESS THAN [(] MAXVALUE [)] -- overflow partition > ); Maybe this needs to mention the actual operator name instead of LESS THAN, in case the operator is not named < or the user wants to use a different one. > Hash partitioning: > CREATE TABLE table_name ( columns ) > PARTITION BY HASH ( a_expr ) > PARTITIONS num_partitions; > > CREATE TABLE table_name ( columns ) > PARTITION BY HASH ( a_expr ) > ( > PARTITION name, > ... > ); Unless someone comes up with a maintenance plan for stable hash functions, we should probably not dare look into this yet.
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