Re: Unrecognized Node Type Warning

Hello Tom,

Thanks for the information. Here are the extensions we are using:

uuid-ossp
pgcrypto
citext
btree_gin

The warnings did start emitting shortly after the installation of btree_gin, so it seems somewhat suspect

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Date: Thursday, May 18, 2023 at 11:30 AM
To: Arora, Nick <NARORA(at)wsgr(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Unrecognized Node Type Warning
EXT - tgl(at)sss(dot)pgh(dot)pa(dot)us

"Arora, Nick" <NARORA(at)wsgr(dot)com> writes:
> We are using PostgreSQL 12.13. We are noticing that queries that attempt to retrieve an element of an array by specifying its position cause a warning to be emitted: "WARNING: unrecognized node type: 110".

I don't see that here, so I'm guessing it's coming from some extension.
What extensions do you have loaded?

Node type 110 would be T_SubscriptingRef in v12, which is a type name
that didn't exist in earlier versions (it used to be called ArrayRef),
so it's not very hard to believe that some extension missed out
support for that type. But the only core-PG suspect is
pg_stat_statements, and I can see that it does know that node type.

regards, tom lane

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