Re: Are there plans to add data compression feature to postgresql? - Mailing list pgsql-general

From Tom Lane
Subject Re: Are there plans to add data compression feature to postgresql?
Date
Msg-id 25675.1225424585@sss.pgh.pa.us
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In response to Re: Are there plans to add data compression feature to postgresql?  ("Scott Marlowe" <scott.marlowe@gmail.com>)
Responses Re: Are there plans to add data compression feature to postgresql?  ("Scott Marlowe" <scott.marlowe@gmail.com>)
List pgsql-general
"Scott Marlowe" <scott.marlowe@gmail.com> writes:
> Sure, bash Microsoft it's easy.   But it doesn't address the point, is
> a database safe on top of a compressed file system and if not, why?

It is certainly *less* safe than it is on top of an uncompressed
filesystem.  Any given hardware failure will affect more stored bits
(if the compression is effective) in a less predictable way.

If you assume that hardware failure rates are below your level of
concern, this doesn't matter.  But DBAs are paid to be paranoid.

            regards, tom lane

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