Schema Version: 1.3

element_relationship


Description

Sometimes we want to combine measurements from multiple elements to get a composite value. Affymetrix combines many probes to form a probeset measurement, for instance.

Columns

Column Type Size Foreign Key Nullable Default Comments
element_relationship_id bigserial 19
nextval('chado.element_relationship_element_relationship_id_seq'::regclass)
subject_id int8 19
element.element_id element_relationship_subject_id_fkey R
null
type_id int8 19
cvterm.cvterm_id element_relationship_type_id_fkey R
null
object_id int8 19
element.element_id element_relationship_object_id_fkey R
null
value text 2147483647
√ null
rank int4 10
0

Table contained -1 rows

Indexes

Constraint Name Type Sort Column(s)
element_relationship_pkey Primary key Asc element_relationship_id
element_relationship_c1 Must be unique Asc/Asc/Asc/Asc subject_id + object_id + type_id + rank
element_relationship_idx1 Performance Asc subject_id
element_relationship_idx2 Performance Asc type_id
element_relationship_idx3 Performance Asc object_id
element_relationship_idx4 Performance Asc value

Relationships

The following entity relationship (ER) diagram shows the relationships involving the element_relationship table.

Show relationships within degrees of separation