In case the heartbeat table hasn't been created, the connector could throw a DebeziumException so the users are notified there is something wrong.

Discussed here (https://debezium.zulipchat.com/#narrow/channel/348249-community-postgresql/topic/Heartbeats.20.3A.20handle.20errors/near/529470401)

Currently, the connector just logs the error.

Implementation ideas :

Catch the "42P01" SQL error code :

case "42P01":
    // Postgres error undefined_table, see https://www.postgresql.org/docs/12/errcodes-appendix.html
    throw new DebeziumException("Could not execute heartbeat action query (Error: " + sqlErrorId + ")", exception);