Re: [HACKERS] Logical Replication WIP

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От Erik Rijkers
Тема Re: [HACKERS] Logical Replication WIP
Дата
Msg-id fa5b07c2481790aa0b38569cc1d293ca@xs4all.nl
обсуждение исходный текст
Ответ на Re: [HACKERS] Logical Replication WIP  (Petr Jelinek <petr.jelinek@2ndquadrant.com>)
Ответы Re: [HACKERS] Logical Replication WIP
Список pgsql-hackers
On 2016-12-20 09:43, Petr Jelinek wrote:

> Thanks, this was very useful. We had wrong attribute index arithmetics
> in the place where we verify that replica identities match well enough.

Well, I spent a lot of time on the whole thing so I am glad it's not 
just
something stupid I did :)

> BTW that script you have for testing has 2 minor flaws in terms of
> pgbench_history - the order by is not unique enough (adding mtime or
> something helps)

yes, in another version I did
   ALTER TABLE pgbench_history ADD COLUMN hid SERIAL PRIMARY KEY.
I suppose that's the best way (adding mtime doesn't work; apparently 
mtime
gets repeated too).  (I have now added that alter table-statement  
again.)

> and second, the pgbench actually truncates the
> pgbench_history unless -n is added to command line.

ok, -n  added.

> So attached is v15, which fixes this and the
> ERROR:  unexpected command tag "PUBLICATION
> as reported by Steve Singer (plus tab completion fixes and doc fixes).

Great. It seems to fix the problem: I just an an unprecidented
5-minute run with correct replication.

The first compile gave the attached diffs in the publication regression 
test; subsequent
compiles went OK (2x). If I have time later today I'll try to reproduce 
that one FAILED test
but maybe you can see  immediately what's wrong there .

thanks,

Erik Rijkers




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