def equals(self, other, cache=None):
if cache is None:
cache = {}
if self is other:
cache[self, other] = True
return True
if not isinstance(other, Window):
cache[self, other] = False
return False
try:
return cache[self, other]
except KeyError:
pass
if len(self._group_by) != len(other._group_by) or not ops.all_equal(
self._group_by, other._group_by, cache=cache):
cache[self, other] = False
return False
if len(self._order_by) != len(other._order_by) or not ops.all_equal(
self._order_by, other._order_by, cache=cache):
cache[self, other] = False
return False
equal = ops.all_equal(
self.preceding, other.preceding, cache=cache) and ops.all_equal(
self.following, other.following,
cache=cache) and ops.all_equal(
self.max_lookback, other.max_lookback, cache=cache)
cache[self, other] = equal
return equal
def equals(self, other, cache=None):
if cache is None:
cache = {}
key = self, other
try:
return cache[key]
except KeyError:
cache[key] = result = self is other or (
isinstance(other, Select) and self.limit == other.limit
and ops.all_equal(self._all_exprs(), other._all_exprs()))
return result
