> Is there a way to identify which queries use cloning?
Every filter, exclude, order_by, select_related and some other calls
clones it. Slicing too.
> Is there a way rewrite those queries to avoid cloning overhead?
You can rewrite
qs.filter(a=1).exclude(b=2) as qs.filter(Q(a=1) & !Q(b=2))
or
qs = qs.filter(a=1); ...; qs = qs.filter(b=2) as q = {}; q['a'] =
1; ...; q['b'] = 2; qs = qs.filter(**q)
But you can't avoid several cloning procs for queryset not modifying
django or monkey patching.
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