flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/serializer/jsondebezium/JsonDebeziumSchemaChangeImplV2.java (2 lines):
	- line 298: // TODO need to fill column with default value
	- line 330: // TODO: The default value of setting the current time in CDC is 1970-01-01 00:00:00


flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/DorisWriter.java (1 line):
	- line 159: // TODO: In a multi-table scenario, if do not restore from checkpoint,


flink-doris-connector/src/main/java/org/apache/doris/flink/sink/HttpPutBuilder.java (1 line):
	- line 108: // TODO: check duplicate key.


flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/DorisStreamLoad.java (1 line):
	- line 202: // TODO: According to label abort txn.


flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/serializer/RowSerializer.java (1 line):
	- line 36: * <p>TODO: support original Doris to Row serializer