SET parallel_tuple_cost=0;
SET parallel_setup_cost=0;
SET min_parallel_table_scan_size=0;
+SET max_parallel_workers_per_gather=2;
-- Ensure we get a parallel plan
EXPLAIN (costs off)
SELECT DISTINCT four FROM tenk1;
-> Parallel Seq Scan on tenk1
(6 rows)
+RESET max_parallel_workers_per_gather;
RESET min_parallel_table_scan_size;
RESET parallel_setup_cost;
RESET parallel_tuple_cost;
SET parallel_tuple_cost=0;
SET parallel_setup_cost=0;
SET min_parallel_table_scan_size=0;
+SET max_parallel_workers_per_gather=2;
-- Ensure we get a parallel plan
EXPLAIN (costs off)
EXPLAIN (COSTS OFF)
SELECT DISTINCT distinct_func(1) FROM tenk1;
+RESET max_parallel_workers_per_gather;
RESET min_parallel_table_scan_size;
RESET parallel_setup_cost;
RESET parallel_tuple_cost;