diff --git a/src/pl/ob_pl_resolver.cpp b/src/pl/ob_pl_resolver.cpp
index 8d46eea110..683a525b6c 100644
--- a/src/pl/ob_pl_resolver.cpp
+++ b/src/pl/ob_pl_resolver.cpp
@@ -4456,11 +4456,11 @@ int ObPLResolver::resolve_cursor_for_loop(
           const ObPLCursor *cursor = stmt->get_cursor();
           if (OB_FAIL(stmt->get_var(var))) {
             LOG_WARN("failed to get var", K(ret));
-          } else if (OB_ISNULL(cursor) || OB_ISNULL(var)) {
+          } else if (OB_ISNULL(cursor)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("value is NULL", K(ret));
           } else if (ObPLCursor::DEFINED != cursor->get_state()) {
-            if (var->get_pl_data_type().is_ref_cursor_type()) {
+            if (OB_NOT_NULL(var) && var->get_pl_data_type().is_ref_cursor_type()) {
               ret = OB_ERR_UNDEFINED;
               LOG_WARN("ref cursor not defined", KPC(var), K(ret));
               LOG_USER_ERROR(OB_ERR_UNDEFINED, var->get_name().ptr());
diff --git a/src/pl/ob_pl_user_type.cpp b/src/pl/ob_pl_user_type.cpp
index a7a5bc47ea..e895ed8f86 100644
--- a/src/pl/ob_pl_user_type.cpp
+++ b/src/pl/ob_pl_user_type.cpp
@@ -1849,7 +1849,6 @@ int ObCollectionType::newx(common::ObIAllocator &allocator, const ObPLINS *ns, i
       OX (new (table)class(user_type_id_)); \
       OX (collection_allocator = new(collection_allocator)ObPLCollAllocator(table)); \
       OX (table->set_allocator(collection_allocator)); \
-      OX (table->set_count(0)); \
       if (OB_SUCC(ret)) { \
         ObElemDesc elem_desc; \
         elem_desc.set_pl_type(element_type_.get_type()); \
diff --git a/src/sql/ob_spi.cpp b/src/sql/ob_spi.cpp
index 8f3cd4ecdf..aadbc5509f 100644
--- a/src/sql/ob_spi.cpp
+++ b/src/sql/ob_spi.cpp
@@ -5486,6 +5486,11 @@ int ObSPIService::spi_set_collection(int64_t tenant_id,
             CK (type->is_collection_type());
             CK (OB_NOT_NULL(collection_type = static_cast<const ObCollectionType*>(type)));
             OZ (collection_type->get_element_type().newx(*coll.get_allocator(), ns, ptr));
+            if (OB_SUCC(ret) && collection_type->get_element_type().is_collection_type()) {
+              ObPLCollection *collection = NULL;
+              CK (OB_NOT_NULL(collection = reinterpret_cast<ObPLCollection*>(ptr)));
+              OX (collection->set_count(0));
+            }
             OZ (collection_type->get_element_type().get_size(*ns, PL_TYPE_INIT_SIZE, init_size));
             OX (row->set_extend(ptr, collection_type->get_element_type().get_type(), init_size));
           }