Insert data into crate using Kafka connect, Do we need schema for every record?

CrateDB
1

For data ingestion in the crate using Kafka connect distributed mode.
we have configured the following properties
“key.converter”:“org.apache.kafka.connect.json.JsonConverter”,
“value. converter”:“org.apache.kafka.connect.json.JsonConverter”,
“key.converter.schemas.enable”:“false”,
“value.converter.schemas.enable”:“true”,

Then, Do we need schema and payload for each record?