From: Michelle Schwan <mschwan@opentext.com>
To: Tom Lane <tgl@sss.pgh.pa.us>, Alvaro Herrera <alvherre@2ndquadrant.com>
CC: Michael Paquier <michael.paquier@gmail.com>,
        "pgsql-docs@postgresql.org"
	<pgsql-docs@postgresql.org>
Subject: Re: DROP EXTENSION
Thread-Topic: [DOCS] DROP EXTENSION
Thread-Index: AQHRy1LwM7cKl9z5jki8p+xAAikTip/0aGCAgAAVIICAAAPbgP//vWkA
Date: Tue, 21 Jun 2016 18:28:53 +0000
Message-ID: <B9948C5F5585784A98B0F992EC6B2BA8065828EF@otwlxg20.opentext.net>
References: <20160621181301.GA91352@alvherre.pgsql>
 <12382.1466533609@sss.pgh.pa.us>
In-Reply-To: <12382.1466533609@sss.pgh.pa.us>
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Ok - I understand!

However, could that be stated in the documentation so that is clear?

-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]=20
Sent: Tuesday, June 21, 2016 2:27 PM
To: Alvaro Herrera
Cc: Michael Paquier; Michelle Schwan; pgsql-docs@postgresql.org
Subject: Re: [DOCS] DROP EXTENSION

Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Right; mschwan wrote private email to indicate that the function in=20
> question is:

> CREATE OR REPLACE FUNCTION public.f_unaccent(text)
>   RETURNS text AS
> $$
>   select public.unaccent('public.unaccent', $1) $$
>   LANGUAGE sql IMMUTABLE;

> so when the unaccent extension is dropped, this function remains (of
> course) but it stops working.

Ah, I kind of suspected that: the issue is that we don't analyze function b=
odies to detect dependencies therein.  In a perfect world we would, but the=
re are daunting obstacles in the way.

			regards, tom lane


--=20
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