[sqlalchemy] Re: Select statement should not be in its own _froms list

[Michael Bayer]

interesting !  that answers that question (i.e., the question above the assertion statement....) changed it to a "continue" in rev 2072. however, your mapping isnt going to work with those textual columns anyway since it cant intelligently construct an aliased select from it, you have to say: s = select([b.c.published_year, func.count('*').label('n')], from_obj=[b], group_by=[b.c.published_year]) i guess you already knew that. On Oct 30, 2006, at 6:19 PM, Jonathan Ellis wrote: from sqlalchemy import * e = create_engine('sqlite:///:memory:', echo=True) md = BoundMetaData(e) sql = """ CREATE TABLE books (     id                   integer PRIMARY KEY, -- auto-SERIAL in sqlite     title                text NOT NULL,     published_year       char(4) NOT NULL,     authors              text NOT NULL ) """ e.execute(sql) b = Table('books', md, autoload=True) s = select(["published_year", "count(*) as n"], from_obj=[b], group_by=[b.c.published_year]) s = s.alias('years_with_count') class YearWithCount(object): pass mapper = mapper(YearWithCount, s) session = create_session() q = session.query(YearWithCount) q.select_by(published_year='2006') --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---