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Formulas documentation: How do I add a Business Column as dimension & with a Formula

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  • Following the example provided on Physical table columns formulas from <http://wiki.pentaho.com/display/ServerDoc2x/02.+Pentaho+Metadata+Formulas>, I provided a Formula for a Dimension type field as isNull(ColName, 'Unknown'). This gets incorrectly translated to SQL. Please provide suggestions how to use a column as a Dimension field with a formula attached as well as in a GROUP BY clause without being replaced by the formula text




  • Queries:


  1. How do I add a business column with a formula that adds default values if the column value is null. I read that when formula value is overridden, the check box Is formula Exact must be checked.
  2. Do I provide the table name as well?



Expected:
Code:

SELECT isnull(ColName,'Unknown') AS ColumnA
                ,COUNT(ColumnX) AS ColumnB
                FROM TableA
                GROUP BY ColName

Actual:
Code:

SELECT
          isnull(ColumnA, 'Unknown') AS COL0
        ,COUNT(BT_TABLE_A."ColumnX") AS COL1
FROM
          ActualAction BT_TABLE_A
GROUP BY
          isnull(ColumnA, 'Unknown')


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