Re: index on id and created_at

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От hubert depesz lubaczewski
Тема Re: index on id and created_at
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Msg-id 20080911192742.GC15748@depesz.com
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Ответ на index on id and created_at  (Marcus Engene <mengpg2@engene.se>)
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On Thu, Sep 11, 2008 at 06:08:15PM +0200, Marcus Engene wrote:
> In this select, it would have been nice to dodge the full table scan
> without adding an index to created_at. Is this possible somehow?

yes.
1. drop condition on created_at
2. run the query as cursor
3. fetch rows from cursor until you will get row that has unsatisfactory
created_at.

Best regards,

depesz

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