Field Name

Field Type

Constraint

Values

Identifier

VARCHAR (256)

Primary Key

Custom identification

Type name

VARCHAR (32)

NOT NULL

gmd: MD_Metadata, smmd: Metadata, csw: Record

Schema

VARCHAR (256)

NOT NULL

http://www.isotc211.org/2005/gmd

http://www.opengis.net/cat/csw/2.0.2

Bbox

TEXT

NULL

Boundaries POLYGON

Xml

TEXT

NOT NULL

The whole metadata is stored in the field in text

Source

VARCHAR (256)

NOT NULL

Source of metadata

Insert_date

VARCHAR (20)

NOT NULL

Date