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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Merlin Moncure <mmoncure@gmail.com>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
To: Robert Haas <robertmhaas@gmail.com>
To: Jon Nelson <jnelson+pgsql@jamponi.net>
To: pgsql-bugs@postgresql.org
Subject: Re: [PERFORM] typoed column name, but postgres didn't grump
Date: Fri, 05 Nov 2010 15:17:24 -0400
Message-ID: <29497.1288984644@sss.pgh.pa.us> (raw)
In-Reply-To: <11057.1288889780@sss.pgh.pa.us>
References: <AANLkTimYMA8D2h4-jHK5vD032jWwig1iJmW6uF-3i=Bx@mail.gmail.com>
	<4480.1288374498@sss.pgh.pa.us>
	<4CCACE6E0200002500036F95@gw.wicourts.gov>
	<6240.1288379246@sss.pgh.pa.us>
	<AANLkTim35FrP1EyZRmnotKSw=2rq8JNVutkitn9PXwFp@mail.gmail.com>
	<4CCADE440200002500036FB2@gw.wicourts.gov>
	<8216.1288383162@sss.pgh.pa.us>
	<AANLkTimdEYcskXpSdiMDyK6R40G66T9SdM7JDUTvY=4h@mail.gmail.com>
	<4CD28C5C020000250003727B@gw.wicourts.gov>
	<9974.1288887285@sss.pgh.pa.us>
	<AANLkTikymqi_chTOgpUzmFfA_hCbEQLDwhaA7No_1hgq@mail.gmail.com>
	<11057.1288889780@sss.pgh.pa.us>

I wrote:
> Ah.  No, that would still work after the change.  The case that I'm
> proposing to break is using function-ish notation to invoke a cast
> from a composite type to some other type whose name you use as if it
> were a function.  Even there, if you've created such a cast following
> the usual convention of naming the cast function after the target type,
> it'll still act the same.  It's just the built-in I/O-based casts that
> will stop working this way (for lack of a matching underlying function).

Here's a proposed patch, sans documentation as yet.

			regards, tom lane

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