CREATE TABLE &registry..releases (
    version           FLOAT         PRIMARY KEY,
    installed_at      TIMESTAMP WITH LOCAL TIME ZONE DEFAULT current_timestamp NOT NULL,
    installer_name    VARCHAR2(512) NOT NULL,
    installer_email   VARCHAR2(512) NOT NULL
);

COMMENT ON TABLE  &registry..releases                 IS 'Sqitch registry releases.';
COMMENT ON COLUMN &registry..releases.version         IS 'Version of the Sqitch registry.';
COMMENT ON COLUMN &registry..releases.installed_at    IS 'Date the registry release was installed.';
COMMENT ON COLUMN &registry..releases.installer_name  IS 'Name of the user who installed the registry release.';
COMMENT ON COLUMN &registry..releases.installer_email IS 'Email address of the user who installed the registry release.';

-- Add the script_hash column to the changes table. Copy change_id for now.
ALTER TABLE &registry..changes ADD script_hash CHAR(40) NULL;
UPDATE &registry..changes SET script_hash = change_id;
COMMENT ON COLUMN &registry..changes.script_hash IS 'Deploy script SHA-1 hash.';

COMMIT;