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rdmurphy/aggregates.py

Created May 5, 2018 16:14
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PostgreSQL specific Django Median aggregation function
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aggregates.py
from django.db.models import Aggregate, FloatField
class Median(Aggregate):
function = 'PERCENTILE_CONT'
name = 'median'
output_field = FloatField()
template = '%(function)s(0.5) WITHIN GROUP (ORDER BY %(expressions)s)'
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