Re: Compression of text columns - Mailing list pgsql-admin

From Stef
Subject Re: Compression of text columns
Date
Msg-id 20051010194853.49dd6355@svb.ucs.co.za
Whole thread Raw
In response to Re: Compression of text columns  ("Jim C. Nasby" <jnasby@pervasive.com>)
List pgsql-admin
Jim C. Nasby mentioned :
=> Are you seeing much gain using ztext over using EXTENDED?

When storage is defined external, there is a visible gain,
but not really significant enough to make me want to use it.

And I had instances where not all the rows would uncompress again
afterwards. I want to try and get the bzip2 compression working, and
see if that does anything for me. But at this stage, I think it's as compressed
as I will be able to get it.

I'm not getting the best results, because a lot of the data rows don't contain
enough data to compress properly, and I think with ztext the column sizes sometimes
end up bigger than they were to start off with.

Kind Regards
Stefan

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