On Thu, Nov 03, 2011 at 10:55:20AM -0400, Tom Lane wrote:
> > index on xobject_id might be corrupted, but it doesn't explain that I
> > don't see duplicates with group_by/having query on xobjects, which uses
> > seqscan:
> I was just going to ask you to check that. Weird as can be.
> Does plain old "SELECT COUNT(*)" show a difference between the two
> tables?
yes. the xobjects table is written to quite a lot and turning it off is
not an option.
> Do you get similar misbehavior if you break the CREATE TABLE AS into a
> CREATE and an INSERT/SELECT? Also, please note the rowcount returned
> by INSERT/SELECT and see how it matches up with the tables afterwards.
>
> Does turning synchronize_seqscans off affect the behavior?
interesting. will test and let you know. the test will take couple of
hours, though.
Best regards,
depesz
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