927e2410_Chado_CV_Module___GMOD_cvtermpath_Structure_Description
[F-Key] cvterm [Name] type_id [Type] integer [Description] 
UNIQUE#1 The relationship type that this is a closure over. If null, then this is a closure over ALL relationship types. If non-null, then this references a relationship cvterm - note that the closure will apply to both this relationship AND the OBO_REL:is_a (subclass) relationship.
Chado CV Module - GMOD
Description