SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 2)
    Function arrayJoin (alias nameGroup6) (children 1)
     ExpressionList (children 1)
      Identifier val
    Function countDistinct (alias rowids) (children 1)
     ExpressionList (children 1)
      Identifier nid
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1_00729
   Function notEmpty (children 1)
    ExpressionList (children 1)
     Function toString (children 1)
      ExpressionList (children 1)
       Identifier nameGroup6
   ExpressionList (children 1)
    Identifier nameGroup6
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier nameGroup6
