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--
-- Tests for parallel statistics
--
SET pg_stat_statements.track_utility = FALSE;
-- encourage use of parallel plans
SET parallel_setup_cost = 0;
SET parallel_tuple_cost = 0;
SET min_parallel_table_scan_size = 0;
SET max_parallel_workers_per_gather = 2;
CREATE TABLE pgss_parallel_tab (a int);
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
SELECT count(*) FROM pgss_parallel_tab;
count
-------
0
(1 row)
SELECT query,
parallel_workers_to_launch > 0 AS has_workers_to_launch,
parallel_workers_launched > 0 AS has_workers_launched
FROM pg_stat_statements
WHERE query ~ 'SELECT count'
ORDER BY query COLLATE "C";
query | has_workers_to_launch | has_workers_launched
----------------------------------------+-----------------------+----------------------
SELECT count(*) FROM pgss_parallel_tab | t | t
(1 row)
DROP TABLE pgss_parallel_tab;
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