Re: WIP: Allow SQL-language functions to reference parameters by parameter name
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Dimitri Fontaine <dimitri@2ndquadrant.fr>,
Josh Berkus <josh@agliodbs.com>, pgsql-hackers@postgresql.org
Date: 2011-04-14T20:55:46Z
Lists: pgsql-hackers
Robert Haas <robertmhaas@gmail.com> writes: > On Thu, Apr 14, 2011 at 11:37 AM, Dimitri Fontaine > <dimitri@2ndquadrant.fr> wrote: >> Unless we make it so that no such version ever exists. Meaning that the >> code works fine as is or using WHERE id = developer_lookup.id. AS id >> can't ever be the parameter in this case, you're just fine. >> >> Bearing in mind that $1 etc shortcuts still are available, I don't >> really see this qualification of parameter names with function names so >> big a problem that we should find a way to avoid it and risk breaking >> compatibility. >> >> Don't forget that any ambiguity here will mean *huge* migration costs. > If I'm reading your email correctly, we're in agreement. Hmm, what I read Dimitri to be proposing is that we *require* parameter names to be qualified with the function name. I don't recall hearing that before. It would solve the problem perhaps, but I think the moans and groans will be numerous. regards, tom lane