From b4568ee2553edc1acd16f50bcbc3ffe2219028fa Mon Sep 17 00:00:00 2001
From: Manjot Singh <manjot@manjotsingh.net>
Date: Fri, 27 May 2016 08:55:37 -0700
Subject: [PATCH] Fixed small issue with old trigger run when no old triggers

line 9554
---
 bin/pt-online-schema-change | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/bin/pt-online-schema-change b/bin/pt-online-schema-change
index d4ce86c3..58f6a77f 100755
--- a/bin/pt-online-schema-change
+++ b/bin/pt-online-schema-change
@@ -9551,9 +9551,11 @@ sub main {
       print "Adding original triggers to new table.\n";
 
       foreach my $orig_trigger (@orig_triggers) {
-         PTDEBUG && _d($orig_trigger);
-         print $orig_trigger, "\n" if $o->get('print');
-         $cxn->dbh()->do($orig_trigger);
+         if ($orig_trigger ne '') {
+            PTDEBUG && _d($orig_trigger);
+            print $orig_trigger, "\n" if $o->get('print');
+            $cxn->dbh()->do($orig_trigger);
+         }
       }
    }