SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier bftest
   Function hasAll (children 1)
    ExpressionList (children 2)
     Identifier x
     Function array (children 1)
      ExpressionList
 Identifier Null
