Schema Version: 1.3

expression_cvtermprop


Description

Extensible properties for expression to cvterm associations. Examples: qualifiers.

Columns

Column Type Size Foreign Key Nullable Default Comments
expression_cvtermprop_id bigserial 19
nextval('chado.expression_cvtermprop_expression_cvtermprop_id_seq'::regclass)
expression_cvterm_id int8 19
expression_cvterm.expression_cvterm_id expression_cvtermprop_expression_cvterm_id_fkey C
null
type_id int8 19
cvterm.cvterm_id expression_cvtermprop_type_id_fkey C
null

The name of the property/slot is a cvterm. The meaning of the property is defined in that cvterm. For example, cvterms may come from the FlyBase miscellaneous cv.

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 expression_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

Indexes

Constraint Name Type Sort Column(s)
expression_cvtermprop_pkey Primary key Asc expression_cvtermprop_id
expression_cvtermprop_c1 Must be unique Asc/Asc/Asc expression_cvterm_id + type_id + rank
expression_cvtermprop_idx1 Performance Asc expression_cvterm_id
expression_cvtermprop_idx2 Performance Asc type_id

Relationships