diff --git a/Jenkinsfile b/Jenkinsfile
index d8c96668287416e971963faa8cbc32f1c4abae1d..685fde662db40c234cd160dd4334d91df75e5a1a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -267,6 +267,17 @@ pipeline {
         }        
     }
   }
+  stage('after_build'){
+          agent{label 'master'}
+          when {
+              changeRequest()
+          }
+          steps {
+          sh'''
+          df -h
+          '''
+          }
+      }
   }
   post {  
         success {
diff --git a/tests/pytest/functions/function_operations.py b/tests/pytest/functions/function_operations.py
index 162aa3eb658a60615c9f20de0c363f9066096f0c..4f126371b9afa7d29ca697cb09acc2e4f16d232e 100644
--- a/tests/pytest/functions/function_operations.py
+++ b/tests/pytest/functions/function_operations.py
@@ -92,7 +92,7 @@ class TDTestCase:
         col_list = [ 'col1' , 'col2' , 'col3' , 'col4' , 'col5' , 'col6' , 'col7' , 'col8' , 'col9' , 'col11' , 'col12' , 'col13' , 'col14' , '1' , '1.1' , 'NULL' ]
         op_list = [ '+' , '-' , '*' , '/' , '%' ]
         err_list = [ 'col7' , 'col8' , 'col9' , 'NULL' ]
-        order_lsit = [ ' order by ts ', ' order by ts desc ', ' order by ts asc ']
+        order_lsit = [ ' order by ts ', ' order by ts desc ', ' order by ts asc']
         for i in col_list :
             for j in col_list :
                 for k in op_list :