| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
| Cc: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: CopyReadLineText optimization |
| Date: | 2008-03-05 17:46:26 |
| Message-ID: | 47CEDC72.2050600@dunslane.net |
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| Lists: | pgsql-hackers pgsql-patches |
Heikki Linnakangas wrote:
>
>
> So the overhead of using memchr slows us down if there's a lot of
> escape or quote characters. The breakeven point seems to be about 1 in
> 8 characters. I'm not sure if that's a good tradeoff or not...
>
>
How about we test the first buffer read in from the file and change
strategy accordingly?
cheers
andrew
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