Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
>> As I understand it, the problem is that while currently LIMIT without
>> ORDER BY always starts at the beginning of the table, it will not with
>> this patch. I consider that acceptable.
>
> It's definitely going to require stronger warnings than we have now
> about using LIMIT without ORDER BY.
Along the lines of
NOTICE: LIMIT without ORDER BY returns an arbitrary set of matching rows
perhaps? I wonder how easy it is to detect that in the planner.
Or just a remark in the manual?
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com