Merge lp:~stub/launchpad/db-cleanups into lp:launchpad/db-devel

[Stuart Bishop]

Switch the index on BugTaskFlat.fti from GIST to GIN. This is a preliminary to switching all of our full text indexes from GIST to GIN.

[Stuart Bishop (stub)]

review: Approve (db)

[Stuart Bishop (stub)]

2209-21-0 has been applied live

=== added file 'database/schema/patch-2209-21-0.sql'
--- database/schema/patch-2209-21-0.sql	1970-01-01 00:00:00 +0000
+++ database/schema/patch-2209-21-0.sql	2012-05-30 12:26:31 +0000
@@ -0,0 +1,5 @@
+SET client_min_messages = ERROR;
+
+CREATE INDEX bugtaskflat__fti__idx2 ON BugTaskFlat USING GIN (fti);
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2209, 21, 0);
 
=== added file 'database/schema/patch-2209-21-1.sql'
--- database/schema/patch-2209-21-1.sql	1970-01-01 00:00:00 +0000
+++ database/schema/patch-2209-21-1.sql	2012-05-30 12:26:31 +0000
@@ -0,0 +1,6 @@
+SET client_min_messages = ERROR;
+
+DROP INDEX bugtaskflat__fti__idx;
+ALTER INDEX bugtaskflat__fti__idx2 RENAME TO bugtaskflat__fti__idx;
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2209, 21, 1);