On 2014-09-29 18:27:01 +0300, Heikki Linnakangas wrote:
> On 09/29/2014 06:02 PM, Robert Haas wrote:
> >On Mon, Sep 29, 2014 at 8:36 AM, Andres Freund <andres@anarazel.de> wrote:
> >>1) I don't think it's a good idea to put the full page write compression
> >> into struct XLogRecord.
> >
> >Why not, and where should that be put?
>
> It should be a flag in BkpBlock.
Doesn't work with the current approach (which I don't really like
much). The backup blocks are all compressed together. *Including* all
the struct BkpBlocks. Then the field in struct XLogRecord is used to
decide whether to decompress the whole thing or to take it verbatim.
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services
