fix modify column

Author: SkyFan2002

src/query/service/src/interpreters/interpreter_table_create.rs

@@ -233,6 +233,7 @@ impl CreateTableInterpreter {
             Arc::new(self.plan.schema.clone().into()),
             false,
             self.ctx.clone(),
+            false,
         )
         .await?;
         let mut pipeline = InterpreterFactory::get(self.ctx.clone(), &append_plan)

src/query/service/src/interpreters/interpreter_table_modify_column.rs

@@ -360,6 +360,7 @@ impl ModifyTableColumnInterpreter {
             Arc::new(DataSchema::from(&new_schema)),
             true,
             self.ctx.clone(),
+            true,
         )
         .await?;
         InterpreterFactory::get(self.ctx.clone(), &append_plan)

src/query/sql/src/planner/plans/append.rs

@@ -75,6 +75,7 @@ pub async fn create_append_plan_from_subquery(
     target_schema: DataSchemaRef,
     forbid_occ_retry: bool,
     ctx: Arc<dyn TableContext>,
+    overwrite: bool,
 ) -> Result<Plan> {
     let (project_columns, source, metadata) = match subquery {
         Plan::Query {
@@ -115,7 +116,7 @@ pub async fn create_append_plan_from_subquery(
         s_expr: Box::new(s_expr),
         metadata: metadata.clone(),
         stage_table_info: None,
-        overwrite: false,
+        overwrite,
         forbid_occ_retry,
     };
     let opt_ctx = OptimizerContext::new(ctx.clone(), metadata)