Metacat

	guid   text,          -- the globally unique string identifier of the object that the system metadata describes

	date_uploaded TIMESTAMP, -- the date/time the document was first submitted

	rights_holder VARCHAR(250), --the user who has rights to the document, usually the first persons to upload it

	checksum VARCHAR(512), --the checksum of the doc using the given algorithm (see below)

	checksum_algorithm VARCHAR(250), --the algorithm used to calculate the checksum

	origin_member_node VARCHAR(250), --the member node where the document was first uploaded

	authoritive_member_node VARCHAR(250), --the member node that currently controls the document

	date_modified TIMESTAMP, -- the last date/time that the file was changed

	submitter VARCHAR(256), -- the user who originally submitted the doc

	object_format VARCHAR(256), --the format of the object

	size VARCHAR(256), --the size of the object

	replication_allowed boolean,	 -- replication allowed

	number_replicas INT8, 	-- the number of replicas allowed

	CONSTRAINT systemMetadata_pk PRIMARY KEY (guid)

/*

 * Table used to store system metadata provenance information

 */

CREATE TABLE systemMetadataProvenance (

   guid   		text,          -- the globally unique string identifier of the object that the system metadata describes

   relationship	VARCHAR(250),	 -- the provenance relationship defined between objects

   target_guid	text,          -- the globally unique string identifier of the other object

   CONSTRAINT systemMetadataProvenance_fk 

		FOREIGN KEY (guid) REFERENCES systemMetadata

);

CREATE TABLE systemMetadataReplicationPolicy (

	guid text,	-- the globally unique string identifier of the object that the system metadata describes

	member_node VARCHAR(250),	 -- replication member node

	policy text,	 -- the policy (preferred, blocked, etc...TBD)

	CONSTRAINT systemMetadataReplicationPolicy_fk 

		FOREIGN KEY (guid) REFERENCES systemMetadata

);

CREATE TABLE systemMetadataReplicationStatus (

	guid text,	-- the globally unique string identifier of the object that the system metadata describes

	member_node VARCHAR(250),	 -- replication member node

	status VARCHAR(250),	 -- replication status

	date_verified TIMESTAMP, 	-- the date replication was verified   

	CONSTRAINT systemMetadataReplicationStatus_fk 

		FOREIGN KEY (guid) REFERENCES systemMetadata

);

 * Replication changes to support DataONE System Metadata replication

 */

ALTER TABLE xml_replication ADD COLUMN systemmetadatareplicate INT8;

/*

 *  Allow guid in xml_access table (for system metadata)

*/

ALTER TABLE xml_access ADD COLUMN guid text;

/*