Re: BUG #17570: Unrecognized node type for query with statistics on expressions

On Thu, Aug 4, 2022 at 4:28 PM PG Bug reporting form <noreply(at)postgresql(dot)org>
wrote:

> The following bug has been logged on the website:
>
> Bug reference: 17570
> Logged by: Alexander Kozhemyakin
> Email address: a(dot)kozhemyakin(at)postgrespro(dot)ru
> PostgreSQL version: 14.4
> Operating system: ubunu 20.04
> Description:
>
> When executing the following script:
> CREATE TABLE t(a INT, b VARCHAR);
> INSERT INTO t(a, b) SELECT i, i FROM generate_series(1,100) s(i);
> CREATE STATISTICS t_stats (mcv) ON (a), (b) FROM t;
> ANALYZE t;
> CREATE ROLE u;
> --GRANT SELECT ON t TO u;
> SET SESSION AUTHORIZATION u;
> SELECT * FROM t WHERE a = 1 AND b::int = 1;
>
> I get:
> ERROR: unrecognized node type: 1697192808

Thanks for the report! I can reproduce it in HEAD. Propose the attached
for fix.

Thanks
Richard