@Override
        protected SnapshotContext prepare(ChangeEventSourceContext changeEventSourceContext)
                throws Exception {
            return new OracleSnapshotContext();
        }
Interval for showing a log statement with the progress while scanning a single table.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/oracle-cdc/src/main/java/org/apache/inlong/sort/cdc/oracle/source/reader/fetch/OracleScanFetchTask.java