Add Column Aggregation

You can define how a column is aggregated.

To add an attribute:

1. Click .

2. To provide a name, deselect Auto Generate and type in the name. By default, Auto Generate is selected.
   Output is the name of the column that holds the results of the aggregation.

3. Select Columns to aggregate from the list.

4. Select the Function to apply to the column. The functions available depend on the data type of the column. For example, you can specify average (AVG) for a numeric value.

5. To define a Sub Group By column, click Edit. The Edit Group By dialog box opens. It is not necessary to define a Sub Group By column.

6. After you are done, click OK.