Re: TODO: Add pg_get_acldef(), pg_get_typedefault(), pg_get_attrdef(),

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: TODO: Add pg_get_acldef(), pg_get_typedefault(), pg_get_attrdef(),
Date: 2006-06-11 23:21:14
Message-ID: 448CA56A.8020009@commandprompt.com
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>>
>
>
> Well, I certainly don't think a setof <name, type> is adequate for
> pg_get_tabledef(). What about constraints? And what you are suggesting
> can probably be got by very simple queries against either the catalog or
> the information schema, and seems to me to have little value.

Well it isn't simple queries because they aren't documented. It is a lot
easier to say, select pg_get_tabledesc('foo') then a select with 3
different joins and a couple of where clauses (I actually don't think it
is that bad. I have a query that does it.) What I am suggesting is that
we have a standard way for APIs to get information that they need.

The information doesn't need to be limited to just the name and type, we
could add cosntraint info. I am not against that at all.

Anyway, I suggest having both functions. One that will spit out the
actual create information, and the other set that gives user space
usable information.

Joshua D. Drake

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