RE: [SQL] Slashdot Query

Is it me or does this query actually make any sense???Is story.datetime a column in your table?
You might be able to rewrite this query.  I don't know if the
ordering you were trying for is needed, but
    SELECT oid, title, image FROM category*     WHERE EXISTS(SELECT 1 FROM story                 WHERE story.approved
ANDstory.category =
 
category.oid);
should give you the same information.
Hope this helps,    -DEJ


> Chris Bitmead <chris.bitmead@bigfoot.com> writes:
> > SELECT category.oid, category.title, category.image FROM story,
> > category* WHERE story.category = category.oid AND story.approved GROUP
> > BY category.oid, category.title, category.image ORDER BY min(datetime);
> > pqReadData() -- backend closed the channel unexpectedly.
> >         This probably means the backend terminated abnormally
> >         before or while processing the request.
> > We have lost the connection to the backend, so further processing is
> > impossible.  Terminating.
> 
> This is a known problem --- see my pghackers email of a few days ago,
> "inherited GROUP BY is busted".
> 
>             regards, tom lane