About Presentation Columns

Presentation columns provide the data users need to create visualizations and analyses.

Presentation columns can be either attribute columns or measure columns. Attribute columns contains columns from dimension logical tables with a GROUP BY and DISTINCT clause applies, and measure columns which are numeric columns are from fact logical tables with an aggregation function like SUM applied.

In most cases, you create presentation columns by dragging and dropping logical columns from the logical layer to a presentation table. Columns that you drag and drop must have unique names. But in some cases when you can't drag and drop logical columns to a presentation table, you can manually create presentation columns within a presentation table.

You can drag and drop a column from a logical table into multiple presentation tables. For example, you can create several presentation tables that contain different classes of measures such as one containing volume measures, one containing share measures, and one containing measures from a year ago.