select([x.c.col1, y.c.col2, z.c.col3, ...], from_obj=[x.join(y).join(z).join(q)...])
On Feb 5, 2:27 pm, "vkuznet" <[EMAIL PROTECTED]> wrote: > Hi, > I've trying to solve the following problem. I've given a list of > tables and list of columns to look at. > All tables are auto-loaded from DB. So, I don't know a priory (I don't > want to know) the relationships and table schema. Now, how to build a > general join among tables and retrieve only the list of given columns > names. As an example, there is an explicit join call and I can do > > join(tableObj1, tableObj2).select() > > but selection will be done for all columns and as of my understanding > join can do only 2 tables. > > Can it be generalized to a list of tables and can selection be done > only on given column names? > > Thanks, > Valentin. --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
