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Re: BUG #13749: PostgreSQL cann't compress random data? - Mailing list pgsql-bugs

From Tom Lane
Subject Re: BUG #13749: PostgreSQL cann't compress random data?
Date
Msg-id 12879.1446217977@sss.pgh.pa.us
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In response to BUG #13749: PostgreSQL cann't compress random data?  (digoal@126.com)
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digoal@126.com writes:
> but when i use the other case, pgsql cann't compress the data, is the
> compress algorithm bug?

No compression algorithm can compress random data.  (If you find that
one can, it means the data isn't really random.)

            regards, tom lane

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