Merge lp:~maxiberta/launchpad/db-named-auth-tokens into lp:launchpad/db-devel

[Maximiliano Bertacchini]

Add ArchiveAuthToken.name; make ArchiveAuthToken.person nullable.

Add ArchiveAuthToken.name; make ArchiveAuthToken.person nullable. This is needed by the new named auth token API required for UA customer delivery of kernel livepatches. See https://code.launchpad.net/~maxiberta/launchpad/named-auth-tokens/+merge/299432.

[Colin Watson (cjwatson)]

review: Needs Fixing

[Maximiliano Bertacchini (maxiberta)]

Fixed the new ArchiveAuthToken index based on analysis of query execution plan. Thanks!

[Maximiliano Bertacchini (maxiberta)]

Added unique constraint on ArchiveAuthToken(archive,name).

[Colin Watson (cjwatson)]

review: Approve (db)

=== added file 'database/schema/patch-2209-79-0.sql'
--- database/schema/patch-2209-79-0.sql	1970-01-01 00:00:00 +0000
+++ database/schema/patch-2209-79-0.sql	2016-07-12 14:55:01 +0000
@@ -0,0 +1,14 @@
+-- Copyright 2016 Canonical Ltd.  This software is licensed under the
+-- GNU Affero General Public License version 3 (see the file LICENSE).
+
+SET client_min_messages=ERROR;
+
+ALTER TABLE ArchiveAuthToken
+    ALTER COLUMN person DROP NOT NULL,
+    ADD COLUMN name text;
+
+COMMENT ON COLUMN ArchiveAuthToken.name IS 'The name for this named token.';
+
+CREATE UNIQUE INDEX archiveauthtoken__archive__name__date_deactivated__idx ON ArchiveAuthToken(archive, name) WHERE date_deactivated IS NULL AND name IS NOT NULL;
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2209, 79, 0);