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Skip aggregator processing when none have been registered #739

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Skip aggregator processing when none have been registered #739

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4 changes: 4 additions & 0 deletions sqlalchemy_utils/aggregates.py
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Original file line number Diff line number Diff line change
Expand Up @@ -534,6 +534,10 @@ def update_generator_registry(self):
)

def construct_aggregate_queries(self, session, ctx):
if not self.generator_registry:
# short-circuit looping through objects if there are no aggregates defined
return

object_dict = defaultdict(list)
for obj in session:
for class_ in self.generator_registry:
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