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Re: Unused pg_class columns

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: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Unused pg_class columns
Date: 2001-05-30 14:52:57
Message-ID: 200105301452.f4UEqvG13300@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > I have marked these columns as unused in pg_class.h.
> 
> Keep your hands off 'em!
> 
> There are other purposes for system catalogs besides the internal
> convenience of the backend, you know.  "Unused at the moment by the
> backend" does not mean "removable" --- you have no way to know what
> user code you may break by removing such info.

I didn't remove them.  I marked them as unused, like other columns
already marked as unused in the file.

For example:

    int2        relrefs;        /* # of references to this rel (not used) */

was already marked as "(not used)".

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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