I had this patch, but was unsure if it was save for 6.5.
Looks like Tom has decided. Good.
> > a create index updates the statistics in pg_class,
> > this leads to substantial performance degradation compared to
> > 6.4.2.
> >
> > If you want to see what I mean simply run the performance test in
> > our test subdirectory.
> >
> > I think the create index statement should not update this statistic.
> > (at least not in the newly created empty table case)
> > This behavior would then be in sync with the create table behavior.
> >
> To fix this I urgently suggest the following patch:
> <<index.patch>>
> regression passes and is a little faster :-)
> performance test: without patch 7min now 22 sec
>
> Andreas
[Attachment, skipping...]
-- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026