diff --git a/src/sql/engine/expr/ob_expr_to_days.cpp b/src/sql/engine/expr/ob_expr_to_days.cpp
index e70030f09..8596f5616 100644
--- a/src/sql/engine/expr/ob_expr_to_days.cpp
+++ b/src/sql/engine/expr/ob_expr_to_days.cpp
@@ -40,11 +40,7 @@ int ObExprToDays::calc_result_type1(ObExprResType &type,
   type.set_int();
   type.set_scale(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].scale_);
   type.set_precision(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].precision_);
-  if (ob_is_enumset_tc(date.get_type())) {
-    date.set_calc_type(ObVarcharType);
-  } else {
-    date.set_calc_type(ObDateType);
-  }
+  date.set_calc_type(ObDateType);
   return ret;
 }