Columns
Column | Type | Size | Foreign Key | Nullable | Default | Comments | ||
---|---|---|---|---|---|---|---|---|
featureprop_id | bigserial | 19 |
|
nextval('chado.featureprop_featureprop_id_seq'::regclass) | ||||
feature_id | int8 | 19 |
|
null | ||||
type_id | int8 | 19 |
|
null | The name of the property/slot is a cvterm. The meaning of the property is defined in that cvterm. Certain property types will only apply to certain feature types (e.g. the anticodon property will only apply to tRNA features) ; the types here come from the sequence feature property ontology. |
|||
value | text | 2147483647 |
|
√ | null | 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 |
|
0 | Property-Value ordering. Any feature 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
Indexes
Constraint Name | Type | Sort | Column(s) |
---|---|---|---|
featureprop_pkey | Primary key | Asc | featureprop_id |
featureprop_c1 | Must be unique | Asc/Asc/Asc | feature_id + type_id + rank |
featureprop_idx1 | Performance | Asc | feature_id |
featureprop_idx2 | Performance | Asc | type_id |