@Override
    public String asSummaryString() {
        return "SqlServer-CDC";
    }
Metadata that is appended at the end of a physical source row.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/sqlserver-cdc/src/main/java/org/apache/inlong/sort/cdc/sqlserver/table/SqlServerTableSource.java