Re: min_safe_lsn column in pg_replication_slots view

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
Cc: amit(dot)kapila16(at)gmail(dot)com, masao(dot)fujii(at)oss(dot)nttdata(dot)com, michael(at)paquier(dot)xyz, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: min_safe_lsn column in pg_replication_slots view
Date: 2020-07-07 17:48:00
Message-ID: 20200707174800.GA17240@alvherre.pgsql
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On 2020-Jul-06, Alvaro Herrera wrote:

> On 2020-Jul-07, Kyotaro Horiguchi wrote:

> > Couldn't we move ConvertToXSegs from xlog.c to xlog_ingernals.h and
> > use it intead of the bare expression?
>
> I was of two minds about that, and the only reason I didn't do it is
> that we'll need to give it a better name if we do it ... I'm open to
> suggestions.

In absence of other suggestions I gave this the name XLogMBVarToSegs,
and redefined ConvertToXSegs to use that. Didn't touch callers in
xlog.c to avoid pointless churn. Pushed to both master and 13.

I hope this satisfies everyone ... Masao-san, thanks for reporting the
problem, and thanks Horiguchi-san for providing the fix. (Also thanks
to Amit and Michael for discussion.)

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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