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Re: knngist patch support

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Joshua Tolley <eggyknap(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: knngist patch support
Date: 2010-02-13 20:48:38
Message-ID: 603c8f071002131248m2ecbf1d8xe27a89c37228c873@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Sat, Feb 13, 2010 at 3:02 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> What would probably be the recommended solution for backwards-compatible
> source code is to convert the actual calls to new style, and then
> provide a block of macro definitions along the lines of
>
> #if CATALOG_VERSION_NO < something
> #define SearchSysCache1(...) SearchSysCache(..., 0, 0, 0)
> #define SearchSysCache2(...) SearchSysCache(..., 0, 0)
> etc
>
> So that seems okay so far.

Where would we put this block of code?

...Robert

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