Thank you. That makes sense.
On Wednesday, April 17, 2013 at 4:27 PM, Michael Bayer wrote: > > On Apr 17, 2013, at 3:37 PM, Randy Shults <randy.c.shu...@gmail.com > (mailto:randy.c.shu...@gmail.com)> wrote: > > > Awesome thank you. > > > > So even though the Table object is attached to the metadata that was bound > > to the engine that uses a mysql connection, I have to explicitly set the > > dialect and compile when printing out the literal sql. > > OK well here the answer is "sort of". *Some* SQL constructs, essentially > those that are "executable", will compile themselves according to the dialect > they're associated with; basically select(), insert(), update(), delete(): > > from sqlalchemy import Table, Column, MetaData, create_engine, String, select > > m = MetaData() > t = Table('t', m, Column('x', String)) > m.bind = create_engine("mysql://") > print select([t.c.x.contains("test")]) > > but just the column expression, since the expression isn't by itself > "executable" it doesn't spend the time searching for an Engine: > > print t.c.x.contains("test") > > > So if you're only dealing with execute(), you should be OK. But this is why > I've really de-emphasized "bound metadata" overall, just makes things more > confusing. > > > -- > 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/ZhksMS_1DCU/unsubscribe?hl=en. > To unsubscribe from this group and all its topics, send an email to > sqlalchemy+unsubscr...@googlegroups.com > (mailto:sqlalchemy+unsubscr...@googlegroups.com). > To post to this group, send email to sqlalchemy@googlegroups.com > (mailto:sqlalchemy@googlegroups.com). > Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. > 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?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
