analyze explain django queryset

models.py

from django.db import connections
from django.db.models.query import QuerySet


def explain(self):
    cursor = connections[self.db].cursor()
    cursor.execute('set enable_seqscan = off')
    query, params = self.query.sql_with_params()
    print(query % params)
    cursor.execute('EXPLAIN ANALYZE %s' % query, params)
    explain = cursor.fetchall()
    [print(x[0]) for x in explain]
    cursor.execute('set enable_seqscan = on')
    return self

QuerySet.explain = explain

# usage:
objects = SomeModel.objects.filter(...).explain()