private static string GetMessage(
     string tableName,
     string columnName,
     ExprAggregateNodeBase aggregationRequired,
     ExprAggregateNodeBase aggregationProvided)
 {
     return("Incompatible aggregation function for table '" +
            tableName +
            "' column '" +
            columnName + "', expecting '" +
            aggregationRequired.ToExpressionStringMinPrecedenceSafe() +
            "' and received '" +
            aggregationProvided.ToExpressionStringMinPrecedenceSafe() +
            "'");
 }
 public void QaExprAggValue(ExprAggregateNodeBase exprAggregateNodeBase, object value)
 {
 }