DO $$
    const res = plv8.execute('SHOW search_path');
    plv8.elog(INFO, JSON.stringify(res));
$$ language plv8;
INFO:  [{"search_path":"\"$user\", public"}]
DO $$
    const res = plv8.execute('EXPLAIN (FORMAT JSON, COSTS OFF) SELECT 1');
    plv8.elog(INFO, JSON.stringify(res));
$$ language plv8;
INFO:  [{"QUERY PLAN":[{"Plan":{"Node Type":"Result","Parallel Aware":false,"Async Capable":false}}]}]