From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Badia, Antonio" <antonio.badia@louisville.edu>
cc: "pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>
Subject: Re: function 'IS JSON ARRAY' not identified
In-reply-to: 
 <BN7PR03MB347651B5C4951F037352DBA18B62A@BN7PR03MB3476.namprd03.prod.outlook.com>
References: 
 <BN7PR03MB347651B5C4951F037352DBA18B62A@BN7PR03MB3476.namprd03.prod.outlook.com>
Comments: In-reply-to "Badia, Antonio" <antonio.badia@louisville.edu>
	message dated "Mon, 02 Jun 2025 14:41:34 -0000"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <3263994.1748877555.1@sss.pgh.pa.us>
Content-Transfer-Encoding: quoted-printable
Date: Mon, 02 Jun 2025 11:19:15 -0400
Message-ID: <3263995.1748877555@sss.pgh.pa.us>
Archived-At: 
 <https://www.postgresql.org/message-id/3263995.1748877555%40sss.pgh.pa.us>
Precedence: bulk

"Badia, Antonio" <antonio.badia@louisville.edu> writes:
> When running query
> select d.data - 'keya' ||  jsonb_build_object('keya', jsonb_array_elemen=
ts(d.data::jsonb-> 'keya'))
> from "Jsondata2" as d
> where jsonb_exists(d.data '$.keya') and d.data->'keya' is not null and d=
.data->'keya' IS JSON ARRAY;
> I get the error message:
> ERROR: syntax error at or near "JSON" LINE 3: ... d.data->'keya' is not =
null and d.data->'keya' IS JSON ARRAY... ^
> SQL state: 42601
> Character: 213

> Running Postgresql on MacOS (Sequoia 15.5), installed via homebrew:
> antonio@mac POSTGRES % psql
> psql (14.18 (Homebrew), server 14.17 (Homebrew))

IS JSON ARRAY was added in PG v16.

			regards, tom lane