Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org
Date: 2010-05-21T03:40:03Z
Lists: pgsql-hackers
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