id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
27442	count estimation on querysets	Denis Cornehl	Denis Cornehl	"on bigger tables a normal ``count()`` gets slow quickly, though quite often we only need a rough estimation (for pagination for example, see #26451 ). 

I want to add a new ``estimate_count`` method on QuerySets to allow users to access this count estimation. 

For Postgres and other databases this is possible by using the query planner statistics to do this estimation. "	New feature	closed	Database layer (models, ORM)	1.10	Normal	wontfix			Unreviewed	0	0	0	0	0	0