only create extension if not exists

diff --git a/Open-ILS/src/sql/Pg/version-upgrade/3.6.2-3.7.0-upgrade-db.sql b/Open-ILS/src/sql/Pg/version-upgrade/3.6.2-3.7.0-upgrade-db.sql
index 21e88f5..8bbbb74 100644 (file)
--- a/Open-ILS/src/sql/Pg/version-upgrade/3.6.2-3.7.0-upgrade-db.sql
+++ b/Open-ILS/src/sql/Pg/version-upgrade/3.6.2-3.7.0-upgrade-db.sql
@@ -402,7 +402,7 @@ ALTER TABLE actor.org_lasso ADD COLUMN global BOOL NOT NULL DEFAULT FALSE;
 -- check whether patch can be applied
 SELECT evergreen.upgrade_deps_block_check('1255', :eg_version);
 
-CREATE EXTENSION earthdistance CASCADE;
+CREATE EXTENSION IF NOT EXISTS earthdistance CASCADE;
 
 -- 005.schema.actors.sql