--
-- Validate WAL generation metrics
--
CREATE EXTENSION pg_stat_monitor;
SET pg_stat_monitor.pgsm_track_utility = off;
SET pg_stat_monitor.pgsm_normalized_query = on;
SELECT pg_stat_monitor_reset() IS NOT NULL AS t;
 t 
---
 t
(1 row)

CREATE TABLE pgsm_wal_tab (a int, b char(20));
INSERT INTO pgsm_wal_tab VALUES(generate_series(1, 10), 'aaa');
UPDATE pgsm_wal_tab SET b = 'bbb' WHERE a > 7;
DELETE FROM pgsm_wal_tab WHERE a > 9;
DROP TABLE pgsm_wal_tab;
-- Check WAL is generated for the above statements
SELECT query, calls, rows,
    wal_bytes > 0 AS wal_bytes_generated,
    wal_records > 0 AS wal_records_generated,
    wal_records >= rows AS wal_records_ge_rows
FROM pg_stat_monitor ORDER BY query COLLATE "C";
                            query                             | calls | rows | wal_bytes_generated | wal_records_generated | wal_records_ge_rows 
--------------------------------------------------------------+-------+------+---------------------+-----------------------+---------------------
 DELETE FROM pgsm_wal_tab WHERE a > $1                        |     1 |    1 | t                   | t                     | t
 INSERT INTO pgsm_wal_tab VALUES(generate_series($1, $2), $3) |     1 |   10 | t                   | t                     | t
 SELECT pg_stat_monitor_reset() IS NOT NULL AS t              |     1 |    1 | f                   | f                     | f
 UPDATE pgsm_wal_tab SET b = $1 WHERE a > $2                  |     1 |    3 | t                   | t                     | t
(4 rows)

SELECT pg_stat_monitor_reset() IS NOT NULL AS t;
 t 
---
 t
(1 row)

DROP EXTENSION pg_stat_monitor;