Re: WAL log only necessary part of 2PC GID

On 10/03/16 13:43, Pavan Deolasee wrote:
> On Wed, Mar 9, 2016 at 7:56 PM, Petr Jelinek <petr@2ndquadrant.com
> <mailto:petr@2ndquadrant.com>> wrote:
>
>     Hi,
>
>     I wonder why you define the gidlen as uint32 when it would fit into
>     uint8 which in the current TwoPhaseFileHeader struct should be win
>     of  8 bytes on padding (on 64bit). I think that's something worth
>     considering given that this patch aims to lower the size of the data.
>
>
> Hi Petr,
>
> That sounds like a good idea; I didn't think about that. I would like to
> make it uint16 though just in case if we decide to increase GIDSIZE from
> 200 to something more than 256 (Postgres-XL does that already). That
> still fits in the same aligned width, on both 32 as well as 64-bit
> machines. New version attached.

Correct, and I see Simon committed it like this in meantime, thanks.

--   Petr Jelinek                  http://www.2ndQuadrant.com/  PostgreSQL Development, 24x7 Support, Training &
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