source: TI01-discovery/branches/ingestAutomation-upgrade/database/original_document.sql @ 5524

Subversion URL:
Revision 5524, 1.7 KB checked in by sdonegan, 12 years ago (diff)

Updated to allow extraction of end date into special column to allow ordering by this

  • Property svn:executable set to *
2 * Table storing the original document with its format and the TSVector format - for text searches
3 *
4 * C Byrom Apr 08
5 *
6 */
7DROP TABLE original_document CASCADE;
8CREATE TABLE original_document (
9        original_document_id SERIAL primary key,
10                original_document_filename varchar(255),
11                discovery_id    varchar(255) unique not null,
12                original_format text,
13                datacentre_name text,
14                dataset_name text,
15                dataset_metadata_update_date timestamp,
16                dataset_start_date_nom timestamp, -- simplest method to allow ordering by date when no date info present in temporal table!!
17                dataset_end_date_nom timestamp, -- ditto for end data ordering
18                original_document text,
19                document_ts_vector      tsvector,
20                authors_ts_vector       tsvector,
21                parameters_ts_vector    tsvector,
22                scope_ts_vector tsvector,
23                create_date     timestamp,
24                update_date timestamp,
25                harvest_count int,      -- this is a counter to store the number of times a doc is repeatedly harvested, even though it hasn't changed
26                resultset_count int,    -- this is a counter to store the number of times a doc has been included in a resultset
27                access_count int,       -- this is a counter to store the number of times a link within the document has been used
28                scn                     int
31-- create the mirror table for this table - to store audit histories
32DROP TABLE original_document_history CASCADE;
33SELECT * INTO original_document_history FROM original_document; 
35-- add a trigger to ensure the history table is populated by records when these change
36CREATE TRIGGER add_to_history_table
37   BEFORE UPDATE ON original_document
38                FOR EACH ROW EXECUTE PROCEDURE add_document_to_history();
40-- Create index on searchable column to speed up searches
41CREATE INDEX textsearch_idx ON original_document USING gin(document_ts_vector);
Note: See TracBrowser for help on using the repository browser.