Hi all,

I'm writing several queries with multiple tables, and left joins, and
the generated SQL is not working with postgres:

ProgrammingError: invalid reference to FROM-clause entry for table
"concert"
LINE 1: ..., artist LEFT JOIN audiofile ON
audiofile.concert=concert.id...
                                                             ^
HINT:  There is an entry for table "concert", but it cannot be
referenced from this part of the query.

my query is:
    query = db((db.concert_purchases.auth_user == auth.user.id) &
               (db.concert.id == db.concert_purchases.concert) &
               (db.concert_purchases.expires > now) &
               (db.artist.id == db.concert.artist) &
               (db.venue.id == db.concert.venue))
    rows = query.select(db.concert.name, db.concert.id,
                        db.concert_purchases.date,
                        db.artist.name,
                        db.venue.name,
                        db.concert.date,
                        db.audiofile.file,
                        left=db.audiofile.on(db.audiofile.concert ==
db.concert.id),
                        orderby=~db.concert_purchases.date)

I have web2py Version 1.63.5 (2009-06-03 23:35:00)

so, is there a way i can write the query to make the left join work,
or should i just do multiple queries?

thanks for the help,

christian

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