python - How to make a quick db select of the range of latitude and longitude in Django? -

there table:

class place(models.model):     user = models.manytomanyfield(settings.auth_user_model, related_name='places_user')     title = models.charfield(max_length=250)     address = models.charfield(max_length=500)     latitude = models.floatfield()     longitude = models.floatfield()     image = models.imagefield(upload_to='place-images')      def __unicode__(self):         return self.title 

please tell me how make quick select of range of latitudes , longitudes.

for example, there 100,000 records. need choose records in longitude 101.25..117.39 , latitude 223.46..232.55.

i think use postgres database.

in result think use postgis + geodjango. details: geodjango blog page.

use range query:

place.objects.filter(     longitude__range=(101.25, 117.39),     latitude__range=(223.46, 232.55), )