p 5, sec 3.1.1. The "where" Query Parameter

[flycoolman]

(5) p 5, sec 3.1.1. The "where" Query Parameter
Conformance
The "where" query parameter MUST be supported for all "config
true" lists and leaf-lists and SHOULD be supported for "config
false" lists and leaf-lists. Servers MAY disable the support for
some or all "config false" lists and leaf-lists as described in
Section 3.3.2.
For clarity, for config true lists, the where expression is allowed to be
of arbitrary complexity? Or is it limited to the expression only acting on
data nodes below the list node entry?