Re: Using "LIMIT" is much faster even though, searching with PK.

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От Tom Lane
Тема Re: Using "LIMIT" is much faster even though, searching with PK.
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Msg-id 1390.1101875171@sss.pgh.pa.us
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Ответ на Using "LIMIT" is much faster even though, searching with PK.  (장현성 <siche@siche.net>)
Ответы Re: Using "LIMIT" is much faster even though, searching
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=?UTF-8?B?7J6l7ZiE7ISx?= <siche@siche.net> writes:
> but, sequence scan, as you see above result, there is big time
> difference between using LIMIT and without using it.

You've got a table full of dead rows.  Try VACUUM FULL ...

            regards, tom lane

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