Schema Definition tab
When using the Add Kafka table wizard on the Streaming SQL Console, you can configure the schema under the Schema tab.
Schema is defined for a given Kafka source when the source is created. The data contained in the Kafka topic can either be in JSON or AVRO format.
When specifying a schema you can either paste it to the Schema Definition field or click the
Detect schema button to identify the schema used on the generated data. The Detect Schema
functionality is only available for JSON data.