Re: problems with this wiew

On Tue, 04 Dec 2001 22:31:21 GMT
"Aasmund Midttun Godal" <postgresql@envisity.com> wrote:


> Well if you have spelled view "wiew" - that may be part of your problem,
> 
> sincerely,
> 
> Aasmund.
> On Tue, 4 Dec 2001 10:07:17 -0800 (PST), Stephan Szabo <sszabo@megazone23.bigpanda.com> wrote:
> > On Tue, 4 Dec 2001, Manuel Trujillo wrote:
> > 
> > 
> > I'm probably missing something obvious, but
> > in any case the schema for tables and views
> > involved (preferably in create statements),
> > your PostgresQL version and the actual error
> > message you're getting would help us.
> > 
> Aasmund Midttun Godal
> 
> aasmund@godal.com - http://www.godal.com/
> +47 40 45 20 46
> 


I would think his problem is cased by how to use aliases, at least, D is 
apparently unnecessary. Since I don't know the definitions of his tables,
I can't affirm what type of an error happened. But if his tables are
correctly defined, his error is probably:   ERROR:  Column reference "***" is ambiguous.

If so, the vague columns reference of his query ought to be adjusted
with explicitly using aliases: B, C, and E (e.g. see below). 


select E.gallery_id, E.multimedia_id from view_multimedia_file A      inner join (select B.gallery_id,
      B.multimedia_id,                         B.element_type_id,                         C.result_type_id,
           C.subevent_id,                         C.subevent_type_id,                         C.event_id,
         C.championship_id,                         C.championship_type_id,                         C.season_id,
                C.c_language_id as language_id                    from view_gallery B                         inner
join(select gallery_id as c_gallery_id,                                            result_type_id,
                     subevent_id,                                            subevent_type_id,
                 event_id,                                            championship_id,
         championship_type_id,                                            season_id,
       language_id as c_language_id                                       from view_gallery_result_type
                   ) C                          on (B.gallery_id = C.c_gallery_id)                ) E       on (A.mm_id
=E.multimedia_id)
 
;


Regards,
Masaru Sugawara