From: Laurenz Albe <laurenz.albe@cybertec.at>
To: arne.sommerfelt@gmail.com
To: pgsql-docs@lists.postgresql.org
Subject: Re: 8.14.5 jsonb subscripting
Date: Tue, 09 Apr 2024 13:16:51 +0200
Message-ID: <e1b66e9d49654e1609107ac89b71c29be7c0014d.camel@cybertec.at> (raw)
In-Reply-To: <171265510066.682.7886492568248508496@wrigleys.postgresql.org>
References: <171265510066.682.7886492568248508496@wrigleys.postgresql.org>
On Tue, 2024-04-09 at 09:31 +0000, PG Doc comments form wrote:
> Page: https://www.postgresql.org/docs/16/datatype-json.html
>
> Using subscripts with square brackets is not supported, one must use -> or
> #> operators
> The given examples result in error:
>
> SELECT ('{"a": 1}'::jsonb)['a'];
>
> -- Extract nested object value by key path
> SELECT ('{"a": {"b": {"c": 1}}}'::jsonb)['a']['b']['c'];
>
> -- Extract array element by index
> SELECT ('[1, "2", null]'::jsonb)[1];
You must be using an old PostgreSQL version where that is not yet supported.
Yours,
Laurenz Albe
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To: pgsql-docs@postgresql.org
Cc: laurenz.albe@cybertec.at, arne.sommerfelt@gmail.com, pgsql-docs@lists.postgresql.org
Subject: Re: 8.14.5 jsonb subscripting
In-Reply-To: <e1b66e9d49654e1609107ac89b71c29be7c0014d.camel@cybertec.at>
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