newSelectionColumns.addAll(dataSourceQuery.getSelection().getColumns());
}
newSelectionColumns.addAll(pivotColumns);
QueryGroup group = new QueryGroup();
for (AbstractColumn col : newGroupColumns) {
group.addColumn(col);
}
dataSourceQuery.setGroup(group);
QuerySelection selection = new QuerySelection();
for (AbstractColumn col : newSelectionColumns) {
selection.addColumn(col);