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 hasAny (children 1)
    ExpressionList (children 2)
     Identifier x
     Function array (children 1)
      ExpressionList
 Identifier Null
