Re: ERROR (Bug?) in RULE processing ?

I see the query:

arbeitsdb=# CREATE RULE doc_contained AS ON INSERT TO documents WHERE
arbeitsdb-# ((NEW.type = 1) AND (count( (SELECT element_id
arbeitsdb(# FROM element_contained_in WHERE (element_id =
currval('docs_seq')) )) = 0))
arbeitsdb-# DO INSTEAD NOTHING;

Added to TODO:

* Prevent aggregates from being used in rule WHERE clauses

Also, please try using HAVING with count() and see if that helps.

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Tom Lane wrote:
> Fritz Lehmann-Grube <lehmannf(at)math(dot)TU-Berlin(dot)DE> writes:
> > Can somebody tell what this errormessage means ?
> > ERROR: fireRIRrules: failed to remove aggs from qual
>
> The reason it's such an unfriendly error message is that it's an
> internal "shouldn't ever happen" check.
>
> What you actually did wrong was to use an aggregate function (count())
> in the rule's WHERE clause. This should have been rejected much further
> upstream, like when you tried to create the rule. That error test
> doesn't seem to be there now though :-(
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>

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