Subject: Re: Transform for pl/perl
To: Tom Lane <tgl@sss.pgh.pa.us>
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Cc: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>,
 =?UTF-8?Q?Dagfinn_Ilmari_Manns=c3=a5ker?= <ilmari@ilmari.org>,
 Pavel Stehule <pavel.stehule@gmail.com>,
 Nikita Glukhov <n.gluhov@postgrespro.ru>,
 PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
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Message-ID: <599707b8-ca3d-2c0f-cd23-3464d30c7624@2ndquadrant.com>
Date: Mon, 30 Apr 2018 13:24:39 -0400
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On 4/29/18 14:28, Tom Lane wrote:
> Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
>> On 4/24/18 14:31, Andrew Dunstan wrote:
>>> There is the routine IsValidJsonNumber that helps - see among others
>>> hstore_io.c for an example use.
> 
>> I would need something like that taking a double/float8 input.  But I
>> think there is no such shortcut available, so I just wrote out the tests
>> for isinf and isnan explicitly.  Attached patch should fix it.
>> jsonb_plpython will need a similar fix.
> 
> I looked this over, it looks fine to me.  I first questioned the use
> of ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE for rejecting NaN, but I see
> that we are doing that in lots of comparable places (e.g., dtoi4())
> so I'm on board with it.

Yeah, that was the idea.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services