SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
   Function lessOrEquals (children 1)
    ExpressionList (children 2)
     Identifier stamp
     Function toDate (children 1)
      ExpressionList (children 1)
       Literal NULL
   Set
