Metacat

/*

 * reviseformetacat13_postgres.sql -- Add three columns to xml_access tables

 * and create a new table in Production Metacat

 *

 *      Created: 07/14/2002

 *       Author: Jing Tao

 * Organization: National Center for Ecological Analysis and Synthesis

 *    Copyright: 2000 Regents of the University of California and the

 *               National Center for Ecological Analysis and Synthesis

 *  For Details: http://www.nceas.ucsb.edu/

 *    File Info: '$Id$'

 *

 */

/*

 * Add tow columns - datareplicate and hub to xml_access

 */

ALTER TABLE xml_access ADD subtreeid VARCHAR(32);

ALTER TABLE xml_access ADD startnodeid INT8;

ALTER TABLE xml_access ADD endnodeid INT8;

/*

 * accesssubtree -- table to store access subtree info

 */

CREATE TABLE xml_accesssubtree (

        docid           VARCHAR(250),   -- the document id #

  rev           INT8 default 1, --the revision number of the docume

  controllevel VARCHAR(50), -- the level it control -- document or subtree

  subtreeid VARCHAR(250), -- the subtree id

        startnodeid     INT8,   -- the start node id of access subtree

  endnodeid INT8 -- the end node if of access subtree

);

/*

 * We need to drop constraint(subject, relationship, object) and create new

 * new (docid, subject, relationship, object). Unfortunately, progres doesn't

 * remove the constrain directly and we should create a new one and copy the

 * old data to new one, then rename them.

 */

DROP SEQUENCE xml_relation_id_seq;

CREATE SEQUENCE xml_relation_id_seq;

CREATE TABLE new_xml_relation (

        relationid INT8 default nextval('xml_relation_id_seq') PRIMARY KEY,

                                             -- unique id

        docid VARCHAR(250) ,         -- the docid of the package file

                                             -- that this relation came from

        packagetype VARCHAR(250),          -- the type of the package

        subject VARCHAR(512) NOT NULL, -- the subject of the relation

        subdoctype VARCHAR(128),                -- the doctype of the subject

        relationship VARCHAR(128)  NOT NULL,-- the relationship type

        object VARCHAR(512) NOT NULL, -- the object of the relation

        objdoctype VARCHAR(128),          -- the doctype of the object

        CONSTRAINT xml_relation_uk UNIQUE (docid, subject, relationship, object),

        CONSTRAINT xml_relation_docid_fk

                FOREIGN KEY (docid) REFERENCES xml_documents

) AS SELECT relationid, docid, packagetype, subject, subdoctype, relationship, object, objdoctype FROM xml_relaion;

ALTER TABLE xml_relation RENAME TO old_xml_relation;

ALTER TABLE new_xml_relation RENAME TO xml_relation;