SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function count (children 1)
     ExpressionList
    Function notEmpty (alias e) (children 1)
     ExpressionList (children 1)
      Identifier v6
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier defaulted
   ExpressionList (children 1)
    Identifier e
