Lets examine this code for a sec:
db.define_table('table1',Field('name'))
db.define_table('table2',Field('table1', db.table1), Field('name2'))
Now, if I need a list of all table2 entries, but not the table1 entries,
I'll do something like this:
retVal = []
for entity in db(db.table2.id > 0).select():
retVal += entity.name2
BUT
As you well know, web2py acctuall did ask for table1 info, just in case
I'll do this:
retVal = []
for entity in db(db.table2.id > 0).select():
retVal += entity.table1.name
On a normal hosting, it doesn't matter that much, but on GAE, it does an
extra query to the datastore, and that's just a waste.
Is there a way to avoid that?
Thanks in advance
Yair
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