1 files changed, 9 insertions, 0 deletions
diff --git a/sql/field.h b/sql/field.h
index 7006e0bfbe8..da78a7c7674 100644
--- a/sql/field.h
+++ b/sql/field.h
@@ -342,6 +342,15 @@ public:
       unireg_check == TIMESTAMP_DNUN_FIELD;
   }
 
+  /*
+    Mark the field as having a value supplied by the client, thus it should
+    not be auto-updated.
+  */
+  void set_has_explicit_value()
+  {
+    flags|= HAS_EXPLICIT_VALUE;
+  }
+
   virtual void set_explicit_default(Item *value);
 
   /**