Method sql2ddfHandle

core/src/main/java/io/ddf/etl/IHandleSql.java:81–81

@brief The function is used to create ddf from sqlcmd. The namespace, uriList, and uuidList have similar definition as sql(). @param command The sql command. @param schema If Schema is null, then the data is expected to have Schema information available @param d

(String command,
                             Schema schema,
                             DataSourceDescriptor dataSource,
                             DataFormat dataFormat)

     * @param dataFormat
     */
    public DDF sql2ddfHandle(String command,
                             Schema schema,
                             DataSourceDescriptor dataSource,
                             DataFormat dataFormat) throws DDFException;