diff --git a/src/pl/ob_pl_resolver.cpp b/src/pl/ob_pl_resolver.cpp
index eb5cab01a3..e6ceec154b 100644
--- a/src/pl/ob_pl_resolver.cpp
+++ b/src/pl/ob_pl_resolver.cpp
@@ -6775,6 +6775,16 @@ int ObPLResolver::convert_cursor_actual_params(
                                                convert_expr));
     OZ (func.add_expr(convert_expr));
     OX (idx = func.get_exprs().count() - 1);
+  } else if (pl_data_type.is_cursor_type()) {
+    if (convert_expr->get_result_type().get_extend_type() != PL_CURSOR_TYPE
+        && convert_expr->get_result_type().get_extend_type() != PL_REF_CURSOR_TYPE) {
+      ret = OB_ERR_INVALID_TYPE_FOR_OP;
+      LOG_WARN("PLS-00382: expression is of wrong type",
+                  K(ret), K(pl_data_type.is_obj_type()), KPC(convert_expr),
+                  K(convert_expr->get_result_type().get_obj_meta().get_type()),
+                  K(pl_data_type.get_user_type_id()),
+                  K(convert_expr->get_result_type().get_udt_id()));
+    }
   } else if (pl_data_type.get_user_type_id() != convert_expr->get_result_type().get_udt_id()) {
     bool is_compatible = false;
     CK (OB_NOT_NULL(current_block_));
diff --git a/src/sql/engine/expr/ob_expr_get_package_var.cpp b/src/sql/engine/expr/ob_expr_get_package_var.cpp
index bd9c8f0bac..396b6a85a2 100644
--- a/src/sql/engine/expr/ob_expr_get_package_var.cpp
+++ b/src/sql/engine/expr/ob_expr_get_package_var.cpp
@@ -110,6 +110,8 @@ int ObExprGetPackageVar::calc_result_typeN(ObExprResType &type,
     type.set_collation_type(result_type->get_collation_type());
     type.set_collation_level(result_type->get_collation_level());
     type.set_scale(result_type->get_scale());
+  } else if (ob_is_extend(result_type->get_type())) {
+    type.set_extend_type(result_type->get_extend_type());
   }
   return ret;
 }