Schema Version: 1.3



Extensible properties for feature to cvterm associations. Examples: GO evidence codes; qualifiers; metadata such as the date on which the entry was curated and the source of the association. See the featureprop table for meanings of type_id, value and rank.


Column Type Size Foreign Key Nullable Default Comments
feature_cvtermprop_id bigserial 19
feature_cvterm_id int8 19
feature_cvterm.feature_cvterm_id feature_cvtermprop_feature_cvterm_id_fkey C
type_id int8 19
cvterm.cvterm_id feature_cvtermprop_type_id_fkey C

The name of the property/slot is a cvterm. The meaning of the property is defined in that cvterm. cvterms may come from the OBO evidence code cv.

value text 2147483647

The value of the property, represented as text. Numeric values are converted to their text representation. This is less efficient than using native database types, but is easier to query.

rank int4 10

Property-Value ordering. Any feature_cvterm can have multiple values for any particular property type - these are ordered in a list using rank, counting from zero. For properties that are single-valued rather than multi-valued, the default 0 value should be used.

Table contained -1 rows


Constraint Name Type Sort Column(s)
feature_cvtermprop_pkey Primary key Asc feature_cvtermprop_id
feature_cvtermprop_c1 Must be unique Asc/Asc/Asc feature_cvterm_id + type_id + rank
feature_cvtermprop_idx1 Performance Asc feature_cvterm_id
feature_cvtermprop_idx2 Performance Asc type_id