SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function dictGetString (alias country) (children 1)
     ExpressionList (children 3)
      Function concat (children 1)
       ExpressionList (children 2)
        Literal \'default\'
        Literal \'.countryId\'
      Literal \'country\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
   ExpressionList (children 1)
    Identifier country
