| From: | Philip Warner <pjw(at)rhyme(dot)com(dot)au> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-sql(at)hub(dot)org |
| Subject: | Re: Subselect and limit/order? |
| Date: | 2000-08-08 06:24:56 |
| Message-ID: | 3.0.5.32.20000808162456.02832bf0@mail.rhyme.com.au |
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| Thread: | |
| Lists: | pgsql-sql |
At 11:46 7/08/00 -0400, Tom Lane wrote:
>
>I'd say mostly an executor problem, actually. Nobody's figured out
>where the executor would need to be hacked to support tuple-limits
>applied elsewhere than the top level of a select.
Shouldn't the optimizer be able to get some benefit (in colun select
expressions at least) by being able to do an implied 'limit 2'?
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