Re: BUG #19000: gist index returns inconsistent result with gist_inet_ops

On Mon, Jul 28, 2025 at 5:16 AM PG Bug reporting form
<noreply@postgresql.org> wrote:
> CREATE EXTENSION btree_gist;
>
> CREATE TABLE t AS SELECT '192.168.1.0/25'::inet AS i;
>
> SELECT * FROM t WHERE i << '192.168.1.0/24'::cidr;
>        i
> ----------------
>  192.168.1.0/25
>
> CREATE INDEX ON t USING gist(i);
>
> SELECT * FROM t WHERE i << '192.168.1.0/24'::cidr;
>  i
> ---
> (0 rows)

It seems that with gist_inet_ops the index's opfamily does not support
the '<<' operator correctly.

With inet_ops, the query works correctly.

CC'ing Peter to have a look.

Thanks
Richard