diff --git a/src/meta/service/src/ddl_service.rs b/src/meta/service/src/ddl_service.rs
index f85f69322e6f..7b7d46260052 100644
--- a/src/meta/service/src/ddl_service.rs
+++ b/src/meta/service/src/ddl_service.rs
@@ -88,10 +88,9 @@ impl DdlServiceImpl {
         if let Some(OptionalAssociatedSourceId::AssociatedSourceId(source_id)) =
             table.optional_associated_source_id
         {
-            let source = source.as_mut().unwrap();
-            source.id = source_id;
+            source.as_mut().unwrap().id = source_id;
             fill_table_stream_graph_info(
-                source,
+                &mut source,
                 &mut table,
                 TableJobType::General,
                 &mut fragment_graph,
diff --git a/src/meta/src/rpc/ddl_controller.rs b/src/meta/src/rpc/ddl_controller.rs
index 3bff278d32e0..3937944e66d9 100644
--- a/src/meta/src/rpc/ddl_controller.rs
+++ b/src/meta/src/rpc/ddl_controller.rs
@@ -644,9 +644,11 @@ impl DdlController {
         stream_job.set_id(id);
 
         match &mut stream_job {
-            StreamingJob::Table(Some(src), table, job_type) => {
+            StreamingJob::Table(src, table, job_type) => {
                 // If we're creating a table with connector, we should additionally fill its ID first.
-                src.id = self.gen_unique_id::<{ IdCategory::Table }>().await?;
+                if let Some(src) = src {
+                    src.id = self.gen_unique_id::<{ IdCategory::Table }>().await?;
+                }
                 fill_table_stream_graph_info(src, table, *job_type, &mut fragment_graph);
             }
             StreamingJob::Source(_) => {
@@ -1979,19 +1981,12 @@ impl DdlController {
 
 /// Fill in necessary information for table stream graph.
 pub fn fill_table_stream_graph_info(
-    source: &mut PbSource,
+    source: &mut Option<PbSource>,
     table: &mut PbTable,
     table_job_type: TableJobType,
     fragment_graph: &mut PbStreamFragmentGraph,
 ) {
     let mut source_count = 0;
-    // Fill in the correct table id for source.
-    source.optional_associated_table_id =
-        Some(OptionalAssociatedTableId::AssociatedTableId(table.id));
-    // Fill in the correct source id for mview.
-    table.optional_associated_source_id =
-        Some(OptionalAssociatedSourceId::AssociatedSourceId(source.id));
-
     for fragment in fragment_graph.fragments.values_mut() {
         visit_fragment(fragment, |node_body| {
             if let NodeBody::Source(source_node) = node_body {
@@ -2001,26 +1996,40 @@ pub fn fill_table_stream_graph_info(
                 }
 
                 // If we're creating a table with connector, we should additionally fill its ID first.
-                source_node.source_inner.as_mut().unwrap().source_id = source.id;
-                source_count += 1;
-
-                // Generate a random server id for mysql cdc source if needed
-                // `server.id` (in the range from 1 to 2^32 - 1). This value MUST be unique across whole replication
-                // group (that is, different from any other server id being used by any master or slave)
-                if let Some(connector) = source.with_properties.get(UPSTREAM_SOURCE_KEY)
-                    && matches!(
-                        CdcSourceType::from(connector.as_str()),
-                        CdcSourceType::Mysql
-                    )
-                {
-                    let props = &mut source_node.source_inner.as_mut().unwrap().with_properties;
-                    let rand_server_id = rand::thread_rng().gen_range(1..u32::MAX);
-                    props
-                        .entry("server.id".to_string())
-                        .or_insert(rand_server_id.to_string());
-
-                    // make these two `Source` consistent
-                    props.clone_into(&mut source.with_properties);
+                if let Some(source) = source {
+                    source_node.source_inner.as_mut().unwrap().source_id = source.id;
+                    source_count += 1;
+
+                    // Generate a random server id for mysql cdc source if needed
+                    // `server.id` (in the range from 1 to 2^32 - 1). This value MUST be unique across whole replication
+                    // group (that is, different from any other server id being used by any master or slave)
+                    if let Some(connector) = source.with_properties.get(UPSTREAM_SOURCE_KEY)
+                        && matches!(
+                            CdcSourceType::from(connector.as_str()),
+                            CdcSourceType::Mysql
+                        )
+                    {
+                        let props = &mut source_node.source_inner.as_mut().unwrap().with_properties;
+                        let rand_server_id = rand::thread_rng().gen_range(1..u32::MAX);
+                        props
+                            .entry("server.id".to_string())
+                            .or_insert(rand_server_id.to_string());
+
+                        // make these two `Source` consistent
+                        props.clone_into(&mut source.with_properties);
+                    }
+
+                    assert_eq!(
+                        source_count, 1,
+                        "require exactly 1 external stream source when creating table with a connector"
+                    );
+
+                    // Fill in the correct table id for source.
+                    source.optional_associated_table_id =
+                        Some(OptionalAssociatedTableId::AssociatedTableId(table.id));
+                    // Fill in the correct source id for mview.
+                    table.optional_associated_source_id =
+                        Some(OptionalAssociatedSourceId::AssociatedSourceId(source.id));
                 }
             }
 
@@ -2034,8 +2043,4 @@ pub fn fill_table_stream_graph_info(
             }
         });
     }
-    assert_eq!(
-        source_count, 1,
-        "require exactly 1 external stream source when creating table with a connector"
-    );
 }
diff --git a/src/meta/src/rpc/ddl_controller_v2.rs b/src/meta/src/rpc/ddl_controller_v2.rs
index 852d9776d61d..4a83914f4f08 100644
--- a/src/meta/src/rpc/ddl_controller_v2.rs
+++ b/src/meta/src/rpc/ddl_controller_v2.rs
@@ -46,7 +46,7 @@ impl DdlController {
         let job_id = streaming_job.id();
 
         match &mut streaming_job {
-            StreamingJob::Table(Some(src), table, job_type) => {
+            StreamingJob::Table(src, table, job_type) => {
                 // If we're creating a table with connector, we should additionally fill its ID first.
                 fill_table_stream_graph_info(src, table, *job_type, &mut fragment_graph);
             }