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
22124	Expand the Documentation of Custom Lookups for V1.7	Maarten	nobody	"Custom Lookups look great, however, I find the documentation terse. Example: no explanation what
{{{#!python
lhs, lhs_params = self.process_lhs(qn, connection)
}}}
is exactly. 

The explanation:

> lhs
> The lhs (left-hand side) of a lookup tells us what we are comparing the rhs to. It is an object which implements the query expression API. This is likely to be a field, an aggregate or a subclass of Transform.

does not explain what `lhs_params` might be. Also a search on `process_lhs` on complete Django website only points to this page (no other pages). "	Cleanup/optimization	closed	Documentation	dev	Normal	fixed			Accepted	0	0	0	0	0	0