Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > So it forces our LIMIT optimization, without limiting the number of rows
> > returned. That seems to be of questionable value. The only value I can
> > see for it is for CURSOR queries but I don't think we can start
> > returning rows from even a cursor until the entire query is done
> > executing.
>
> Not so at all. However, CURSORs are already optimized on the assumption
> that not all the rows will actually get fetched.
So, it is only valuable for cursors or can we return results before the
entire query finishes for non-cursors. The "No so at all" part has me
confused.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
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