1 files changed, 2 insertions, 1 deletions
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index 650225d30..dea71a3c9 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -1889,8 +1889,9 @@ static void releaseMemArray(Mem *p, int N){
         sqlite3DbFreeNN(db, p->zMalloc);
         p->szMalloc = 0;
       }
-
+#ifdef SQLITE_DEBUG
       p->flags = MEM_Undefined;
+#endif
     }while( (++p)<pEnd );
   }
 }