Re: Attempt to consolidate reading of XLOG page

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Antonin Houska <ah(at)cybertec(dot)at>
Cc: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Attempt to consolidate reading of XLOG page
Date: 2019-09-24 19:50:51
Message-ID: 20190924195051.GA10509@alvherre.pgsql
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On 2019-Sep-24, Antonin Houska wrote:

> Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:

> > If you don't have any strong dislikes for these changes, I'll push this
> > part and let you rebase the remains on top.
>
> No objections here.

oK, pushed. Please rebase the other parts.

I made one small adjustment: in read_local_xlog_page() there was one
*readTLI output parameter that was being changed to a local variable
plus later assigment to the output struct member; I changed the code to
continue to assign directly to the output variable instead. There was
an error case in which the TLI was not assigned to; I suppose this
doesn't really change things (we don't examine the TLI in that case, do
we?), but it seemed dangerous to leave like that.

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

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