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Re: string_to_array has to be stable?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Jeff Davis <pgsql(at)j-davis(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: string_to_array has to be stable?
Date: 2010-07-29 17:10:28
Message-ID: (view raw or whole thread)
Lists: pgsql-hackers
Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Thu, Jul 29, 2010 at 1:00 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Or we could decide that volatile domain CHECK expressions are un-sensible
>> and just relabel all these input functions as stable, which would make
>> everything consistent. Thoughts?

> Aren't volatile CHECK expressions pretty un-sensible in general?

Yeah, probably so.  I can't think of a use-case that seems like it would
justify the possible performance hit from having to assume all functions
performing datatype input calls are volatile.

			regards, tom lane

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