mirror of https://github.com/django/django.git
9f3cce172f
The introduction of the Expression.empty_aggregate_value interface allows the compilation stage to enable the EmptyResultSet optimization if all the aggregates expressions implement it. This also removes unnecessary RegrCount/Count.convert_value() methods. Disabling the empty result set aggregation optimization when it wasn't appropriate prevented None returned for a Count aggregation value. Thanks Nick Pope for the review. |
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| .. | ||
| __init__.py | ||
| models.py | ||
| test_filter_argument.py | ||
| tests.py | ||