class StdDev(expression, sample=False, **extra) [source] Returns the standard deviation of
class Prefetch(lookup, queryset=None, to_attr=None) [source] The Prefetch()
class Min(expression, output_field=None, **extra) [source] Returns the minimum value of the
last() Works like first(), but returns the last object in the queryset.
extra(select=None, where=None, params=None, tables=None, order_by=None, select_params=None) Sometimes, the Django query syntax
defer(*fields) In some complex data-modeling situations, your models might contain a lot of fields, some of which could contain
iterator() Evaluates the QuerySet (by performing the query) and returns an iterator (see
all() Returns a copy of the current QuerySet (or QuerySet subclass). This can be useful in
dates(field, kind, order='ASC') Returns a QuerySet that evaluates to a list of
filter(**kwargs) Returns a new QuerySet containing objects that match the given lookup parameters.
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