diff options
| -rw-r--r-- | django/db/models/aggregates.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/django/db/models/aggregates.py b/django/db/models/aggregates.py index 4ed763cfe1..3c0434f907 100644 --- a/django/db/models/aggregates.py +++ b/django/db/models/aggregates.py @@ -110,6 +110,7 @@ class Count(Aggregate): function = 'COUNT' name = 'Count' template = '%(function)s(%(distinct)s%(expressions)s)' + output_field = IntegerField() def __init__(self, expression, distinct=False, filter=None, **extra): if expression == '*': @@ -118,7 +119,7 @@ class Count(Aggregate): raise ValueError('Star cannot be used with filter. Please specify a field.') super().__init__( expression, distinct='DISTINCT ' if distinct else '', - output_field=IntegerField(), filter=filter, **extra + filter=filter, **extra ) def _get_repr_options(self): @@ -141,10 +142,11 @@ class Min(Aggregate): class StdDev(Aggregate): name = 'StdDev' + output_field = FloatField() def __init__(self, expression, sample=False, **extra): self.function = 'STDDEV_SAMP' if sample else 'STDDEV_POP' - super().__init__(expression, output_field=FloatField(), **extra) + super().__init__(expression, **extra) def _get_repr_options(self): options = super()._get_repr_options() @@ -167,10 +169,11 @@ class Sum(Aggregate): class Variance(Aggregate): name = 'Variance' + output_field = FloatField() def __init__(self, expression, sample=False, **extra): self.function = 'VAR_SAMP' if sample else 'VAR_POP' - super().__init__(expression, output_field=FloatField(), **extra) + super().__init__(expression, **extra) def _get_repr_options(self): options = super()._get_repr_options() |