i think you're looking for CASE. We have a case() construct which creates this.
On Apr 5, 2009, at 3:03 PM, Wouter van Vliet wrote: > > Thanks for your suggestion, but no such luck. From the sql error I get > I gathered that that just creates an actual if_ function.. > > On Apr 5, 9:08 pm, a...@svilendobrev.com wrote: >> try with func.if_(....) >> >> On Sunday 05 April 2009 21:19:29 Wouter van Vliet wrote: >> >>> Hi Folks, >> >>> After an hour or so of browsing the net and documentations, getting >>> increasingly frustrated and being about to just - nah, I didn't >>> really consider throwing sqlalchemy out of my project. But still. >>> Anyway, I'm trying to make a select-query which would send >>> something like this to postgres: >> >>> SELECT sum(if(type = "purchase", value, 0)), user_id >>> FROM transactions >>> GROUP BY user_id >> >>> But no matter how hard I try, I can't find something that works >>> like just being able to do >> >>> sql.func.if( ... ) >> >>> when I do that, I get the obvious syntax error. >> >>> Any help is much appreciated. >>> Wouter > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
