DDL support in writers
When the source is a CDC reader, see Handling schema evolution.
ADLSGen1Writer, ADLSGen2Writer, AzureBlobWriter, FileWriter, GCSWriter, HDFSWriter, and S3Writer can roll over to a new file when a DDL event is received from one of the sources listed in Handling schema evolution.
KafkaWriter can track schema evolution Using the Confluent or Hortonworks schema registry.