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 AND story.category =
category.oid);

should give you the same information.

Hope this helps,
-DEJ

> Chris Bitmead <chris(dot)bitmead(at)bigfoot(dot)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