Обсуждение: BUG #13808: Upsert not working

The following bug has been logged on the website:

Bug reference:      13808
Logged by:          TARUN
Email address:      tarunt@chisquare.in
PostgreSQL version: 9.5beta1
Operating system:   Windows 7 Professional SP1
Description:

drop table daily_deposits;
create table daily_deposits
(   id int,
    fdd timestamp,
    ldd timestamp,
    fda double precision,
    lda double precision
);

insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (1,'2015-12-01
08:10:50','2015-12-01 10:10:50', 10, 9);
insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (1,'2015-12-02
10:10:50','2015-12-02 12:10:50', 10, 9);
insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (1,'2015-12-04
04:10:50','2015-12-04 08:10:50', 15, 20);

insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (2,'2015-12-01
08:10:50','2015-12-01 10:10:50', 5, 10);
insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (2,'2015-12-02
10:10:50','2015-12-02 12:10:50', 6, 12);
insert into daily_deposits (id, fdd,  ldd,  fda, lda) values (2,'2015-12-03
04:10:50','2015-12-04 08:10:50', 9, 11);

commit;

select * from daily_deposits;

drop table user_first_last;
create table user_first_last
(   UserId int,
    FirstLoginDate timestamp,
    LastLoginDate timestamp,
    FirstLoginAmt double precision,
    LastLoginAmt double precision
);


INSERT INTO user_first_last AS ufl (UserId,
FirstLoginDate,LastLoginDate,FirstLoginAmt,LastLoginAmt)
select id, fdd,  ldd,fda,  lda
from daily_deposits
ON CONFLICT (UserId)
DO UPDATE
  SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLoginDate then
excluded.fda else ufl.FirstLoginAmt END,
      LastLoginAmt = case when excluded.ldd > ufl.LastLoginDate then
excluded.lda else ufl.LastLoginAmt END,
      FirstLoginDate = case when excluded.fdd < ufl.FirstLoginDate then
excluded.fdd else ufl.FirstLoginDate END,
      LastLoginDate = case when excluded.ldd > ufl.LastLoginDate then
excluded.ldd else ufl.LastLoginDate END;

ERROR:  column excluded.fdd does not exist
LINE 6:   SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLogi...
                                        ^
********** Error **********

ERROR: column excluded.fdd does not exist
SQL state: 42703
Character: 222

On 2015-12-09 09:01:53 +0000, tarunt@chisquare.in wrote:
> drop table daily_deposits;
> create table daily_deposits
> (   id int,
>     fdd timestamp,
>     ldd timestamp,
>     fda double precision,
>     lda double precision
> );
>
> drop table user_first_last;
> create table user_first_last
> (   UserId int,
>     FirstLoginDate timestamp,
>     LastLoginDate timestamp,
>     FirstLoginAmt double precision,
>     LastLoginAmt double precision
> );
>
>
> INSERT INTO user_first_last AS ufl (UserId,
> FirstLoginDate,LastLoginDate,FirstLoginAmt,LastLoginAmt)
> select id, fdd,  ldd,fda,  lda
> from daily_deposits
> ON CONFLICT (UserId)
> DO UPDATE
>   SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLoginDate then
> excluded.fda else ufl.FirstLoginAmt END,
>       LastLoginAmt = case when excluded.ldd > ufl.LastLoginDate then
> excluded.lda else ufl.LastLoginAmt END,
>       FirstLoginDate = case when excluded.fdd < ufl.FirstLoginDate then
> excluded.fdd else ufl.FirstLoginDate END,
>       LastLoginDate = case when excluded.ldd > ufl.LastLoginDate then
> excluded.ldd else ufl.LastLoginDate END;
>
> ERROR:  column excluded.fdd does not exist
> LINE 6:   SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLogi...
>                                         ^
> ********** Error **********
>
> ERROR: column excluded.fdd does not exist
> SQL state: 42703
> Character: 222

'excluded' is about the relation you're inserting to
(i.e. user_first_last / ufl, which doesn't have a fdd column), not about
the table you're selecting from.

Regards,

Andres

tarunt@chisquare.in schrieb am 09.12.2015 um 10:01:
> The following bug has been logged on the website:
>
> INSERT INTO user_first_last AS ufl (UserId,
> FirstLoginDate,LastLoginDate,FirstLoginAmt,LastLoginAmt)
> select id, fdd,  ldd,fda,  lda
> from daily_deposits
> ON CONFLICT (UserId)
> DO UPDATE
>    SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLoginDate then
> excluded.fda else ufl.FirstLoginAmt END,
>        LastLoginAmt = case when excluded.ldd > ufl.LastLoginDate then
> excluded.lda else ufl.LastLoginAmt END,
>        FirstLoginDate = case when excluded.fdd < ufl.FirstLoginDate then
> excluded.fdd else ufl.FirstLoginDate END,
>        LastLoginDate = case when excluded.ldd > ufl.LastLoginDate then
> excluded.ldd else ufl.LastLoginDate END;
>
> ERROR:  column excluded.fdd does not exist
> LINE 6:   SET FirstLoginAmt = case when excluded.fdd < ufl.FirstLogi...
>                                          ^

You already have a perfectly valid answer: http://stackoverflow.com/a/34166088/330315