presto-main/src/main/java/io/prestosql/execution/scheduler/AllAtOnceExecutionSchedule.java/AllAtOnceExecutionSchedule/visitSpatialJoin
class AllAtOnceExecutionSchedule:        @Override
        public Void visitSpatialJoin(SpatialJoinNode node, Void context)
        {
            node.getRight().accept(this, context);
            node.getLeft().accept(this, context);
            return null;
        }