SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier click_country_id
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t (alias cc)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier d
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Function toUInt32 (children 1)
         ExpressionList (children 1)
          Identifier d.id
        Identifier cc.click_city_id
