@Override
	public boolean equals(Object o) {
		if (this == o) {
			return true;
		}
		if (o == null || getClass() != o.getClass()) {
			return false;
		}
		final AvroTuple2SerializationSchema that = (AvroTuple2SerializationSchema) o;
		return Objects.equals(recordClazz, that.recordClazz) && Objects.equals(schemaString, that.schemaString);
	}
Creates an Avro serialization schema for the given Avro schema string.

@param avroSchemaString Avro schema string used to serialize Flink's row to Avro's record
kafka-base/kafka-base-sink/src/main/java/com/dtstack/flink/sql/sink/kafka/serialization/AvroTuple2SerializationSchema.java