launchpad-reviewers team mailing list archive

[William Grant <me@xxxxxxxxxxxxxxxxxx>]

William Grant has proposed merging lp:~wgrant/launchpad/lpsprc-index-harder into lp:launchpad.

Commit message:
Add indices for Person:+(ppa|uploaded|maintained)-packages.

Requested reviews:
  Launchpad code reviewers (launchpad-reviewers): db

For more details, see:
https://code.launchpad.net/~wgrant/launchpad/lpsprc-index-harder/+merge/134848

Person:+(maintained|uploaded|ppa)-packages like to query LatestPersonSourcePackageReleaseCache filtering on either creator or maintainer, with archive.purpose == PPA or archive.purpose != PPA, ordered by date_uploaded DESC. This branch adds four indices to satisfy those queries rapidly.
-- 
https://code.launchpad.net/~wgrant/launchpad/lpsprc-index-harder/+merge/134848
Your team Launchpad code reviewers is requested to review the proposed merge of lp:~wgrant/launchpad/lpsprc-index-harder into lp:launchpad.

=== added file 'database/schema/patch-2209-38-3.sql'
--- database/schema/patch-2209-38-3.sql	1970-01-01 00:00:00 +0000
+++ database/schema/patch-2209-38-3.sql	2012-11-19 09:19:22 +0000
@@ -0,0 +1,17 @@
+-- Copyright 2012 Canonical Ltd.  This software is licensed under the
+-- GNU Affero General Public License version 3 (see the file LICENSE).
+
+SET client_min_messages=ERROR;
+
+-- Create indices for Person:+(ppa|uploaded|maintained)-packages.
+CREATE INDEX latestpersonsourcepackagereleasecache__creator__purpose__date__idx
+  ON latestpersonsourcepackagereleasecache (creator, archive_purpose, date_uploaded DESC);
+CREATE INDEX latestpersonsourcepackagereleasecache__creator__date__non_ppa__idx
+  ON latestpersonsourcepackagereleasecache (creator, date_uploaded) WHERE archive_purpose <> 2;
+
+CREATE INDEX latestpersonsourcepackagereleasecache__maintainer__purpose__date__idx
+  ON latestpersonsourcepackagereleasecache (maintainer, archive_purpose, date_uploaded DESC);
+CREATE INDEX latestpersonsourcepackagereleasecache__maintainer__date__non_ppa__idx
+  ON latestpersonsourcepackagereleasecache (maintainer, date_uploaded) WHERE archive_purpose <> 2;
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2209, 38, 3);