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