From: Andrew Dunstan <andrew@dunslane.net>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Document strange jsonb sort order for empty top level arrays
Date: Fri, 03 Jan 2025 15:41:30 +0000
Message-ID: <E1tTjnl-002pI5-Ly@gemulon.postgresql.org> (raw)
Document strange jsonb sort order for empty top level arrays
Slightly faulty logic in the original jsonb code (commit d9134d0a355)
results in an empty top level array sorting less than a json null. We
can't change the sort order now since it would affect btree indexes over
jsonb, so document the anomaly.
Backpatch to all live branches (13 .. 17)
In master, also add a code comment noting the anomaly.
Reported-by: Yan Chengpen
Reviewed-by: Jian He
Discussion: https://postgr.es/m/OSBPR01MB45199DD8DA2D1CECD50518188E272@OSBPR01MB4519.jpnprd01.prod.outlook.com
Branch
------
REL_16_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/653729ce0ec1c38b444740637896d6ec706ef13a
Modified Files
--------------
doc/src/sgml/json.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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To: pgsql-committers@postgresql.org
Cc: andrew@dunslane.net, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Document strange jsonb sort order for empty top level arrays
In-Reply-To: <E1tTjnl-002pI5-Ly@gemulon.postgresql.org>
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