Did a quick experiment, and it appears that a ROLLBACK resets the search path. Try calling dbapi_con.commit() in your event handler, that appears to cause the search path to remain persistent for the life of that connection.
On May 22, 2012, at 4:31 PM, Demitri Muna wrote: > Hi, > > Progress! But still not working 100%. I have three assert statements: one > that tests a "to one" relationship across schemas, one that test a "to one" > relationship within the same scheme, and two that test a "many to many" > relationship across schemas (one assert for each direction). > > When I set the search_path to what I'd like it to be (e.g. "things, people") > and use the "connect" event listener as detailed earlier in this thread, the > first two asserts (which broke before) now work. The first of the "many to > many" asserts works, but the reverse does not. However, the relationship > statements (in either direction) *do* seem to work. I can't explain that. > > Going for it, I put the event listener into my large project and crossed my > fingers, but it doesn't work. I'm still running into these errors across > schemas: > > ArgumentError: Could not determine join condition between parent/child tables > on relationship VisitSpectrum.observation. Specify a 'primaryjoin' > expression. If 'secondary' is present, 'secondaryjoin' is needed as well. > > It works when I set the search path to "$user", i.e. no existing table, and > different things break depending on the order search path. As far as I can > tell the listener is setting the search path properly, but I have no idea how > persistent it is or if another connection is being made somehow where it's > not. So I'm getting frustrated. > > Attached is my toy model where the relationship assertion breaks. > > Demitri > > > -- > 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. > > <schema_test.py> -- 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.
