public static TableId getTableId(String dbName, String tableName) {
        return new TableId(dbName, null, tableName);
    }
Returns a split which contain the specific key.

@param splitInfos split info list.
@param target the specific key.
@return A split which contain the specific key.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/utils/RecordUtils.java