Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader - Mailing list pgsql-hackers

From Andres Freund
Subject Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader
Date
Msg-id 20121209191532.GG4694@awork2.anarazel.de
Whole thread Raw
In response to Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Responses Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader
Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader
List pgsql-hackers
On 2012-11-15 16:22:56 +0200, Heikki Linnakangas wrote:
> On 15.11.2012 03:17, Andres Freund wrote:
> >
> >Features:
> >- streaming reading/writing
> >- filtering
> >- reassembly of records
> >
> >Reusing the ReadRecord infrastructure in situations where the code that wants
> >to do so is not tightly integrated into xlog.c is rather hard and would require
> >changes to rather integral parts of the recovery code which doesn't seem to be
> >a good idea.
> >
> >Missing:
> >- "compressing" the stream when removing uninteresting records
> >- writing out correct CRCs
> >- separating reader/writer
>
> I'm disappointed to see that there has been no progress on this patch since
> last commitfest. I thought we agreed on the approach I championed for here:
> http://archives.postgresql.org/pgsql-hackers/2012-09/msg00636.php. There
> wasn't much work left to finish that, I believe.
>
> Are you going to continue working on this?

Patch (git repo) is now based ontop of my vesion of your xlogreader
version...

Greetings,

Andres Freund

--Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services



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