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Re: [HACKERS] make async slave to wait for lsn to be replayed - Mailing list pgsql-hackers

From Alexander Korotkov
Subject Re: [HACKERS] make async slave to wait for lsn to be replayed
Date
Msg-id CAPpHfdvUnqY8TTwZ4gMOcwY+3S+N=07gpuL61p41E6SdAetvCg@mail.gmail.com
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In response to Re: [HACKERS] make async slave to wait for lsn to be replayed  (Ivan Kartyshov <i.kartyshov@postgrespro.ru>)
Responses Re: [HACKERS] make async slave to wait for lsn to be replayed  (Ivan Kartyshov <i.kartyshov@postgrespro.ru>)
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On Mon, Jan 23, 2017 at 2:56 PM, Ivan Kartyshov <i.kartyshov@postgrespro.ru> wrote:
How to use it
==========
WAITLSN ‘LSN’ [, timeout in ms];
 WAITLSN_INFINITE ‘LSN’;
WAITLSN_NO_WAIT ‘LSN’;

Adding suffix to the command name looks weird.  We don't do so for any other command.
I propose following syntax options.

WAITLSN lsn;
WAITLSN lsn TIMEOUT delay;
WAITLSN lsn INFINITE;
WAITLSN lsn NOWAIT;

For me that looks rather better.  What do you think?

------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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