diff --git a/src/sql/engine/expr/ob_datum_cast.cpp b/src/sql/engine/expr/ob_datum_cast.cpp
index 1d1bd32897..5ab5cd3e22 100644
--- a/src/sql/engine/expr/ob_datum_cast.cpp
+++ b/src/sql/engine/expr/ob_datum_cast.cpp
@@ -8768,6 +8768,8 @@ CAST_FUNC_NAME(geometry, decimalint)
     } else {
       ObDecimalIntBuilder res_val;
       res_val.from((int32_t)0);
+      ObPrecision out_prec = expr.datum_meta_.precision_;
+      res_val.extend(wide::ObDecimalIntConstValue::get_int_bytes_by_precision(out_prec));
       res_datum.set_decimal_int(res_val.get_decimal_int(), res_val.get_int_bytes());
     }
   }
diff --git a/src/sql/engine/expr/ob_expr_assign.cpp b/src/sql/engine/expr/ob_expr_assign.cpp
index 28f4bfae8c..6d75e34e00 100644
--- a/src/sql/engine/expr/ob_expr_assign.cpp
+++ b/src/sql/engine/expr/ob_expr_assign.cpp
@@ -53,6 +53,10 @@ int ObExprAssign::calc_result_type2(ObExprResType &type,
     type.set_varchar();
     type.set_collation_level(common::CS_LEVEL_IMPLICIT);
     type.set_collation_type(common::CS_TYPE_BINARY);
+  } else if (ob_is_enum_or_set_type(value.get_type())) {
+    type.set_varchar();
+    type.set_collation_level(value.get_collation_level());
+    type.set_collation_type(value.get_collation_type());
   } else {
     type.set_type(val_type);
     type.set_collation_level(common::CS_LEVEL_IMPLICIT);