async fn handle_drop_flow_task(
ddl_manager: &DdlManager,
drop_flow_task: DropFlowTask,
procedure_context: ProcedureContext,
) -> Result<SubmitDdlTaskResponse>async fn handle_drop_flow_task(
ddl_manager: &DdlManager,
drop_flow_task: DropFlowTask,
procedure_context: ProcedureContext,
) -> Result<SubmitDdlTaskResponse>