There are 2 quick / dirty ways that I use:
1. change between joinedload and subqueryload ; if it is loading correctly,
you'll see different sql generated
2. cheat, and use SQL comments to push in some logging data into your SQL
log.
foo = dbSession.query(model.Foo).options(joinedload("bars")).one()
logline = dbSession.query("SELECT TRUE; -- just joinedloaded")
logline = dbSession.query("SELECT TRUE; -- about to touch `bars`")
bars = list(foo.bars)
logline = dbSession.query("SELECT TRUE; -- touched `bars`")
It's impossible to tell if something is being eagerloaded or not from the
SQL alone; you'd have to share the SqlAlchemy queries too.
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