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From: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Alexander Korotkov <a.korotkov@postgrespro.ru>
To: Nikita Glukhov <n.gluhov@postgrespro.ru>
Cc: Andres Freund <andres@anarazel.de>
Cc: Oleg Bartunov <obartunov@postgrespro.ru>
Cc: Michael Paquier <michael@paquier.xyz>
Cc: Stas Kelvich <s.kelvich@postgrespro.ru>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>
Cc: David Steele <david@pgmasters.net>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Pavel Stehule <pavel.stehule@gmail.com>
Subject: Re: jsonpath
Date: Sun, 3 Mar 2019 20:37:50 -0500
Message-ID: <cc52ece4-ae83-02b8-1850-e1351664bc24@2ndQuadrant.com> (raw)
In-Reply-To: <c25eb8a5-a129-bb7e-c930-761f0e2a6b71@2ndquadrant.com>
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	<20190130022826.of7w6xv5lbvzqxfp@alap3.anarazel.de>
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	<a3be6a7a-77d3-0e88-4f9d-4f725d11d7cd@postgrespro.ru>
	<CAPpHfdsW924B1eYLqgXE0SkH0ym2Zk32CqPwUu_CH65Gk_onrA@mail.gmail.com>
	<c25eb8a5-a129-bb7e-c930-761f0e2a6b71@2ndquadrant.com>


On 3/3/19 1:08 PM, Tomas Vondra wrote:
>
>
> jsonb_util.c
> ============
>
> I see we're now handling NaN values in convertJsonbScalar(). Isn't it
> actually a bug that we don't do this already? Or is it not needed for
> some reason?
>

JSON standard numerics don't support NaN, Infinity etc., so I assume
this can only happen in a jsonpath expression being converted to a jsonb
value. If so, the new section  should contain a comment to that effect,
otherwise it will be quite confusing.


cheers


andrew


-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services





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