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Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up
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Msg-id AANLkTikqy8DmqU2WNlDRuFpiKOr_BLEAxkJbvKO-sqsE@mail.gmail.com
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In response to [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up  (Andres Freund <andres@anarazel.de>)
Responses Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up
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On Thu, May 20, 2010 at 4:27 PM, Andres Freund <andres@anarazel.de> wrote:
> I looked a bit around for faster implementations of CRC32 and found one in
> zlib. After adapting it (pg uses slightly different computation (non-
> inverted)) I found that it increases the speed of the CRC32 calculation itself
> 3 fold.

But zlib is not under the PostgreSQL license.

...Robert

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