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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Mark Dilger <hornschnorter@gmail.com>
Cc: Regina Obe <lr@pcorp.us>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: PostgreSQL 10 changes in exclusion constraints - did something change? CASE WHEN behavior oddity
Date: Mon, 12 Jun 2017 21:03:31 -0400
Message-ID: <21643.1497315811@sss.pgh.pa.us> (raw)
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Andres Freund <andres@anarazel.de> writes:
> Possibly too hard to be precise enough in a hint, but a number of these
> could benefit from one suggesting moving things into FROM, using
> LATERAL.

Maybe "You might be able to move the set-returning function into a
LATERAL FROM item."?

> I'm kinda positively surprised at how non-invasive this turned out, I'd
> afraid there'd be a lot more verbosity to it.  I think the improved
> error messages (message & location), are quite worthwhile an their own.

Yeah, me too --- I'm pretty pleased with the result.

			regards, tom lane


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