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from django.contrib.postgres.fields import ArrayField
from django.db.models import Subquery
from django.utils.functional import cached_property
class ArraySubquery(Subquery):
template = 'ARRAY(%(subquery)s)'
def __init__(self, queryset, **kwargs):
super().__init__(queryset, **kwargs)
@cached_property
def output_field(self):
return ArrayField(self.query.output_field)
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