Re: Drop all overloads of a function without knowing parameter types

From: Sergey Konoplev <gray(dot)ru(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Evan Martin <postgresql(at)realityexists(dot)net>, pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Drop all overloads of a function without knowing parameter types
Date: 2014-02-04 16:30:08
Message-ID: CAL_0b1sDeS7p-fg-v6YX5SWQ=MSAaKBG3KB9tva2DbeBVBwmmA@mail.gmail.com
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On Mon, Feb 3, 2014 at 10:09 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> People periodically ask for extensions flavored more or less like this,
> but I'm suspicious of building any such thing into the core. There's too
> little commonality in the exact conditions they want to search on.
> Leaving it at the level of a scripting problem, as above, allows arbitrary
> customization of the search condition.

I understand the POV of both Evan and you here. However, I think that
there might be a good solution for this particular case - to allow
dropping functions by name only if it has the only signature, but if
there are 2 or more signatures then print an error specifying all the
forms of the function, eg.:

ERROR: Can not drop function 'foo' because it has more then one
signature: foo(integer), foo(text).

I am sure It would simplify life significantly.

--
Kind regards,
Sergey Konoplev
PostgreSQL Consultant and DBA

http://www.linkedin.com/in/grayhemp
+1 (415) 867-9984, +7 (901) 903-0499, +7 (988) 888-1979
gray(dot)ru(at)gmail(dot)com

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