diff --git a/src/meta/src/manager/catalog/database.rs b/src/meta/src/manager/catalog/database.rs
index d6523060e967..73943d021556 100644
--- a/src/meta/src/manager/catalog/database.rs
+++ b/src/meta/src/manager/catalog/database.rs
@@ -502,6 +502,9 @@ impl DatabaseManager {
                 .all(|s| s.schema_id != schema_id)
             && self.indexes.values().all(|i| i.schema_id != schema_id)
             && self.views.values().all(|v| v.schema_id != schema_id)
+            && self.functions.values().all(|f| f.schema_id != schema_id)
+            && self.connections.values().all(|c| c.schema_id != schema_id)
+            && self.secrets.values().all(|s| s.schema_id != schema_id)
     }
 
     pub fn increase_relation_ref_count(&mut self, relation_id: RelationId) {