Index: lams_common/src/java/org/lamsfoundation/lams/dbupdates/patch2040053.sql
===================================================================
diff -u -r00794f9716e5009fdde3af9736321699e1ed1c7b -rf82ef72444321711ae42b266b63161aca46fa6f5
--- lams_common/src/java/org/lamsfoundation/lams/dbupdates/patch2040053.sql	(.../patch2040053.sql)	(revision 00794f9716e5009fdde3af9736321699e1ed1c7b)
+++ lams_common/src/java/org/lamsfoundation/lams/dbupdates/patch2040053.sql	(.../patch2040053.sql)	(revision f82ef72444321711ae42b266b63161aca46fa6f5)
@@ -2,7 +2,7 @@
 SET AUTOCOMMIT = 0;
 
 -- LDEV-3631 	Simple Commenting Widget
-CREATE TABLE lams_comment_session (
+CREATE TABLE IF NOT EXISTS lams_comment_session (
   `uid` bigint(20) NOT NULL AUTO_INCREMENT,
   `external_id` bigint(20) DEFAULT NULL,
   `external_id_type` int(1) DEFAULT NULL,
@@ -11,7 +11,7 @@
   UNIQUE INDEX `comment_ext_sig_user` (`external_id`,`external_id_type`,`external_signature`)
 );
 
-CREATE TABLE lams_comment (
+CREATE TABLE IF NOT EXISTS lams_comment (
   `uid` bigint(20) NOT NULL AUTO_INCREMENT,
   `session_id` bigint(20) NOT NULL,
   `body` text DEFAULT NULL,
@@ -42,7 +42,7 @@
   CONSTRAINT `FK_comment_thread` FOREIGN KEY (`thread_comment_uid`) REFERENCES `lams_comment` (`uid`)
 );
 
-CREATE TABLE lams_comment_likes (
+CREATE TABLE IF NOT EXISTS lams_comment_likes (
   `uid` bigint(20) NOT NULL AUTO_INCREMENT,
   `comment_uid` bigint(20) NOT NULL,
   `user_id` bigint(20) NOT NULL,