Re: experience sharing: select query returns more records than necessary

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От Kent Tong
Тема Re: experience sharing: select query returns more records than necessary
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Msg-id 21564410.post@talk.nabble.com
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Ответ на Re: experience sharing: select query returns more records than necessary  (Oliver Jowett <oliver@opencloud.com>)
Ответы Re: experience sharing: select query returns more records than necessary  ("Dave Cramer" <pg@fastcrypt.com>)
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Oliver Jowett wrote:
>
> Dave Cramer wrote:
> Though, I would suggest that if you really only care about the first 50
> results, then put a LIMIT 50 in your query! The query planner may come
> up with a better plan if you do that, too ..
>
> If you want to "stream" the whole resultset, then fetchsize is certainly
> the way to do it.
>

Yeah, I was actually settling on "LIMIT 50" before coming across
setFetchSize().
However, the support for LIMIT varies from one DBMS to another. To keep
the code as portable as possible, I decided to go with setFetchSize().


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Kent Tong
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