public SelectClause addStreamWildcard(String streamName,String columnName){
  selectList.add(new SelectClauseStreamWildcard(streamName,columnName));
  return this;
}

public SelectClause addStreamWildcard ( String streamName , String columnName ) { selectList . add ( new SelectClauseStreamWildcard ( streamName , columnName ) ) ; return this ; }
adds to the select - clause a stream wildcard selector with column name ( e . g . select streamname . * as colname from mystream as streamname )
