On Mon, Jan 27, 2014 at 12:03 PM, Amit Kapila <amit.kapil...@gmail.com> wrote:
>> I think that's a good thing to try.  Can you code it up?
> I have tried to improve algorithm in another way so that we can get
> benefit of same chunks during find match (something similar to lz).
> The main change is to consider chunks at fixed boundary (4 byte)
> and after finding match, try to find if there is a longer match than
> current chunk. While finding longer match, it still takes care that
> next bigger match should be at chunk boundary. I am not
> completely sure about the chunk boundary may be 8 or 16 can give
> better results.
> I think now we can once run with this patch on high end m/c.

Here are the results I got on the community PPC64 box.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Attachment: pgrb-v5 test.ods
Description: application/vnd.oasis.opendocument.spreadsheet

Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:

Reply via email to