Bruce Momjian <[EMAIL PROTECTED]> 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.

                        regards, tom lane

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not

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