view db/sat_pubsub_update_2_3.sql @ 350:4d4575911060

sql (PostgreSQL): schema update: - added version check on top of update files, SQL will not be applied if the version is not the one expected - new db schema version (3) - added "presence" access_model in nodes - added "schema" column in nodes - converted items data to xml, this will allow the use of all XML functions PostgreSQL now needs to have been compiled with --with-libxml .
author Goffi <goffi@goffi.org>
date Fri, 08 Sep 2017 08:02:04 +0200
parents
children 1dc606612405
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-- we check version of the database before doing anything
-- and stop execution if not good
\set ON_ERROR_STOP
DO $$
DECLARE ver text;
BEGIN
    SELECT value INTO ver FROM metadata WHERE key='version';
    IF NOT FOUND OR ver!='2' THEN
        RAISE EXCEPTION 'This update file need to be applied on database schema version 2, you use version %',ver;
    END IF;
END$$;
\unset ON_ERROR_STOP
-- end of version check

/* we add "presence" access model */
ALTER TABLE nodes DROP CONSTRAINT nodes_access_model_check;
ALTER TABLE nodes ADD CHECK (access_model IN ('open', 'presence', 'publisher-roster', 'whitelist', 'publish-only', 'self-publisher'));

/* and schema column */
ALTER TABLE nodes ADD COLUMN schema xml;

/* we want xml types for items data too */
ALTER TABLE items ALTER data TYPE xml using data::xml;

UPDATE metadata SET value='3' WHERE key='version';