Re: why postgresql over other RDBMS
От | Jeremy Harris |
---|---|
Тема | Re: why postgresql over other RDBMS |
Дата | |
Msg-id | 4661A419.5050408@wizmail.org обсуждение исходный текст |
Ответ на | why postgresql over other RDBMS ("Jasbinder Singh Bali" <jsbali@gmail.com>) |
Список | pgsql-general |
On 06/01/07 11:22, Bruce Momjian wrote: > > PFC wrote: >> >> On Thu, 31 May 2007 22:20:09 +0200, Vivek Khera <vivek@khera.org> wrote: >> >> >>> >>> On May 25, 2007, at 5:28 PM, Tom Lane wrote: >>> >>> >>>> >>>> That's true at the level of DDL operations, but AFAIK we could >>>> >>>> parallelize table-loading and index-creation steps pretty effectively >>>> >>>> --- and that's where all the time goes. >>> >>> I would be happy with parallel builds of the indexes of a given table. >>> >>> That way you have just one scan of the whole table to build all its >>> >>> indexes. >> >> Will the synchronized seq scan patch be able to do this by issuing all >> >> the CREATE INDEX commands at the same time from several different database >> >> connections ? > > > > No, but it could someday. Would it be possible to track stats sufficient for a cost/benefit based automatic recreate of all indices on a table whenever a full-table-scan occurred, whether due to a commanded index rebuild or not? Cheers, Jeremy Harris
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