DDLs that alter schemas definitely cause things to catch on fire at the moment (Debezium writes them to a side-topic, which isn't obviously synchronized with the data topics). In principle `CREATE` and `DROP` statements are things we could pass through, but some work needs to get done to pull the right information out of Debezium at the right moments (and drop the right prefixes of the existing Kafka topics if you re-create a table with the same name).