Re: idea for concurrent seqscans

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От Andrew Dunstan
Тема Re: idea for concurrent seqscans
Дата
Msg-id 2089.24.211.165.134.1109421937.squirrel@www.dunslane.net
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Ответ на Re: idea for concurrent seqscans  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane said:
> "Jim C. Nasby" <decibel@decibel.org> writes:
>>> but I also hate to burden the developers with rewriting a lot of
>>> regression tests when their time could be better spent elsewhere.
>
>> Certainly, but I suspect it's just a matter of adding ORDER BY to
>> everything, which just about anyone (even myself!) should be able to
>> do.
>
> Performance is not the issue; test coverage, however, is an issue. See
> the comment at the end of
> http://developer.postgresql.org/docs/postgres/regress-evaluation.html#AEN22383>


Is it not possible to wrap the original query in an outer query that applies
the ordering, leaving the original query run without ordering? Would that
cause a lessening of test coverage?

cheers

andrew





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