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 and (children 1)
       ExpressionList (children 2)
        Function less (children 1)
         ExpressionList (children 2)
          Identifier d.country_id
          Literal UInt64_99
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier d.id
          Identifier cc.click_city_id
