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
31386	Add support for the PostgresSQL ts_rank_cd function	Hannes Ljungberg	Hannes Ljungberg	"The `ts_rank_cd` function is used as an alternative to `ts_rank` for penalizing query words that are further apart from each other.

I'm thinking that adding a `cover_density` parameter to `SearchRank` should be enough. If this parameter is set to `True` the function will be switched to `ts_rank_cd`."	New feature	closed	contrib.postgres	dev	Normal	duplicate	postgres search ts_rank_cd		Ready for checkin	1	0	0	0	0	0