Search Postgresql Archives

Re: Coditional join of query using PostgreSQL

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> On 15 May 2017, at 19:02, Nick Dro <postgresql@xxxxxxxxxxx> wrote:
> 
> Hi, 
> I'm new to postgresql and couldn't find answer to this situation anywhere. 
> I asked this here: 
> http://stackoverflow.com/questions/43984208/coditional-join-of-query-using-postgresql
> 
> I hope there is a better solution rather than creating two separated functions :(

You can use your boolean parameter inside the join condition:
[…] on (tfquery.a = main.a and ((type_f and tfquery.d = main.d) or not type_f))

Beware that you don't also have a column named type_f in that join somewhere.

Alban Hertroys
--
If you can't see the forest for the trees,
cut the trees and you'll find there is no forest.



-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux