diff --git a/src/frontend/src/handler/create_mv.rs b/src/frontend/src/handler/create_mv.rs
index 83d8759735899..4fbb9f972ec41 100644
--- a/src/frontend/src/handler/create_mv.rs
+++ b/src/frontend/src/handler/create_mv.rs
@@ -15,7 +15,6 @@
 use std::collections::HashSet;
 
 use either::Either;
-use itertools::Itertools;
 use pgwire::pg_response::{PgResponse, StatementType};
 use risingwave_common::acl::AclMode;
 use risingwave_common::catalog::{FunctionId, ObjectId, TableId};
diff --git a/src/meta/src/rpc/ddl_controller.rs b/src/meta/src/rpc/ddl_controller.rs
index d318058905102..f4610ee82cd52 100644
--- a/src/meta/src/rpc/ddl_controller.rs
+++ b/src/meta/src/rpc/ddl_controller.rs
@@ -36,10 +36,9 @@ use risingwave_connector::source::{
 };
 use risingwave_connector::{dispatch_source_prop, WithOptionsSecResolved};
 use risingwave_meta_model::object::ObjectType;
-use risingwave_meta_model::prelude::ObjectDependency;
 use risingwave_meta_model::{
-    object_dependency, ConnectionId, DatabaseId, FunctionId, IndexId, ObjectId, SchemaId, SecretId,
-    SinkId, SourceId, SubscriptionId, TableId, UserId, ViewId,
+    ConnectionId, DatabaseId, FunctionId, IndexId, ObjectId, SchemaId, SecretId, SinkId, SourceId,
+    SubscriptionId, TableId, UserId, ViewId,
 };
 use risingwave_pb::catalog::{
     Comment, Connection, CreateType, Database, Function, PbSink, Schema, Secret, Sink, Source,
@@ -59,7 +58,6 @@ use risingwave_pb::stream_plan::{
     Dispatcher, DispatcherType, FragmentTypeFlag, MergeNode, PbStreamFragmentGraph,
     StreamFragmentGraph as StreamFragmentGraphProto,
 };
-use sea_orm::{EntityTrait, Set};
 use thiserror_ext::AsReport;
 use tokio::sync::Semaphore;
 use tokio::time::sleep;