risingwave_frontend::optimizer::plan_node::utils

Function plan_can_use_background_ddl

source 
pub(crate) fn plan_can_use_background_ddl(plan: &PlanRef) -> bool
Expand description

Check that all leaf nodes must be stream table scan, since that plan node maps to backfill executor, which supports recovery. Some other leaf nodes like StreamValues do not support recovery, and they cannot use background ddl.