Re: Idea about better configuration options for sort memory

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Joe Conway <mail(at)joeconway(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Idea about better configuration options for sort memory
Date: 2004-02-02 16:02:39
Message-ID: 200402021602.i12G2dO10067@candle.pha.pa.us
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Tom Lane wrote:
> After looking at the code a bit, I think the simplest solution is for
> find_option to look in a separate mapping table (mapping from old to new
> option name) if it doesn't find the given name in the main table. This
> would make lookup of "old" names a shade slower than "preferred" names,
> but that doesn't seem like a problem.
>
> With this approach, old GUC names would be recognized in SHOW and SET
> commands, as well as the other ways you can set a variable by name
> (postgresql.conf, ALTER USER SET, etc). But only the new names would
> appear in SHOW ALL or the pg_settings view. Does that seem OK?

Sounds good. The idea that we can keep the names constant seems to be a
losing proposal.

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