From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | xiapw <xiapw(at)lreis(dot)ac(dot)cn> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: how to add a new column to system table |
Date: | 2005-12-29 16:43:10 |
Message-ID: | 200512291643.jBTGhAn04391@candle.pha.pa.us |
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Lists: | pgsql-general |
xiapw wrote:
> I wanted to add a new column to system table(pg_database),but failed
> at last. Who know how to do this and can you tell me ?
It is pretty complicated. I would pick an existing column in the table
and find all references to that in the backend, then adjust other values
to match. Actually adding a column to a system table is quite complex
and you might be better off creating a new table that refernces
pg_database and linking to it.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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