Re: Logical replication and multimaster

On 3 December 2015 at 19:06, konstantin knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>
wrote:

>
> On Dec 3, 2015, at 10:34 AM, Craig Ringer wrote:
>
> On 3 December 2015 at 14:54, konstantin knizhnik <
> k(dot)knizhnik(at)postgrespro(dot)ru> wrote:
>
>>
>> I'd really like to collaborate using pglogical_output if at all possible.
>> Petr's working really hard to get the pglogical downstrem out too, with me
>> helping where I can.
>>
>> And where I can get pglogical_output plugin? Sorry, but I can't quickly
>> find reference with Google...
>>
>
> It's been submitted to this CF.
>
> https://commitfest.postgresql.org/7/418/
>
> https://github.com/2ndQuadrant/postgres/tree/dev/pglogical-output
>
> Any tests and comments would be greatly appreciated.
>
>
> Thank you.
> I wonder if there is opposite part of the pipe for pglogical_output -
> analog of receiver_raw?
>

It's pglogical, and it's in progress, due to be released at the same time
as 9.5. We're holding it a little longer to nail down the user interface a
bit better, etc, and because sometimes the real world gets in the way.

The catalogs and UI are very different to BDR, it's much more
extensible/modular, it supports much more flexible topologies, etc... but
lots of the core concepts are very similar. So if you go take a look at the
BDR code that'll give you a pretty solid idea of how a lot of it works,
though BDR has whole subsystems pglogical doesn't (global ddl lock, ddl
replication, etc).

--
Craig Ringer http://www.2ndQuadrant.com/
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