Re: Compression of full-page-writes - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Compression of full-page-writes
Date
Msg-id CA+TgmobPMGPS6dK4EgwJGuLmMp=Ct29KJ2Jv7MXepJ0f9DwXCw@mail.gmail.com
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In response to Re: Compression of full-page-writes  (Michael Paquier <michael.paquier@gmail.com>)
List pgsql-hackers
On Fri, Dec 12, 2014 at 9:34 AM, Michael Paquier
<michael.paquier@gmail.com> wrote:
>> I don't think that's a cost worth caring about.
> OK, I thought it was.

Space on the heap that never gets used is basically free.  The OS
won't actually allocate physical memory unless the pages are actually
accessed.

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



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