On Dec 5, 2013, at 6:57 AM, Adrian Schreyer <adrian.schre...@gmail.com> wrote:
> Actually that was a bit too early but I tracked the problem down to the > many-to-many relationship. Parameters are only interpolated (e.g. > %(param_1)s) for the primaryjoin to the secondary table. Is there a technique > to force relationship() to interpolate a parameter between the 1st and 3rd > table instead of using only table.column=table.column? there’s no reason why that would be the case can you provide more specifics? > > > On Thu, Dec 5, 2013 at 10:58 AM, Adrian Schreyer <adrian.schre...@gmail.com> > wrote: > Never mind, > > the problem was that I specified the clause in a secondaryjoin and not in the > primaryjoin of the relationship(). > > > On Thu, Dec 5, 2013 at 10:44 AM, Adrian <adrian.schre...@gmail.com> wrote: > Hi All, > > I have a few partitioned tables in my PostgreSQL database but I do not know > yet how to make the ORM relationship() with partition constraint-exclusion on > the instance level. Constraint-exclusion does not work with joins and > requires scalar values - the problem is that I would need to add an > additional WHERE clause to the primaryjoin (which adds the partition key) if > the relationship is accessed from the instance level, e.g. user.addresses. Is > there a mechanism in relationship() to distinguish between class-based joins > (User.addresses) and instance-level access? > > -- > You received this message because you are subscribed to a topic in the Google > Groups "sqlalchemy" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/sqlalchemy/ov-mYWA7XAM/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at http://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at http://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/groups/opt_out.
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