Index: openacs-4/packages/calendar/sql/postgresql/upgrade/upgrade-2.10.0d6-2.10.0d7.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/sql/postgresql/upgrade/upgrade-2.10.0d6-2.10.0d7.sql,v
diff -u -r1.1.2.1 -r1.1.2.2
--- openacs-4/packages/calendar/sql/postgresql/upgrade/upgrade-2.10.0d6-2.10.0d7.sql	11 Dec 2020 19:40:16 -0000	1.1.2.1
+++ openacs-4/packages/calendar/sql/postgresql/upgrade/upgrade-2.10.0d6-2.10.0d7.sql	19 Jan 2021 06:39:13 -0000	1.1.2.2
@@ -1,3 +1,3 @@
 -- create a partial index on public calendars
-create index calendars_package_id_pidx on calendars(package_id) where private_p = false;
+create index if not exists calendars_package_id_pidx on calendars(package_id) where private_p = false;