Debezium Postgres v1.9.3 fails in Materialize CI

What Debezium connector do you use and what version?

PostgreSQL v1.9.3.Final

What is the connector configuration?

https://github.com/MaterializeInc/materialize/blob/8b98fccc493381eccfd19778bd08bd4b3c971dd8/test/debezium/postgres/debezium-postgres.td.initialize#L41-L60

What is the captured database version and mode of depoyment?

v10 in Docker

What behaviour do you expect?

Debezium is successfully able to ingest data from a table with an enum type it has not seen before.

What behaviour do you see?

Debezium crashes with the following error message:

org.apache.kafka.connect.errors.ConnectException: Database connection failed during resolving unknown type

...

Caused by: org.postgresql.util.PSQLException: This connection has been closed.

This behavior is new in v1.9.3.Final and was not present in v1.9.2.Final.

Note that the database has not crashed. PostgreSQL query logs show that the type resolution query was successfully prepared and executed by Debezium. Something is being mishandled on the Debezium side.

Do you see the same behaviour using the latest relesead Debezium version?

Yes, it's new in v1.9.2.Final.

Do you have the connector logs, ideally from start till finish?

(You might be asked later to provide DEBUG/TRACE level log)

Yes, in the same gist: https://gist.github.com/benesch/b71ba0bdb8f8d6e038ee241f0ef0f9c0