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Improve cleanup phases in regression tests of pg_stat_statements

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As shaped, two DROP ROLE queries included in "user_activity" were
showing in the reports for "wal".  The intention is to keep each test
isolated and independent, so this is incorrect.  This commit adds some
calls to pg_stat_statements_reset() to clean up the statistics once each
test finishes, so as there are no risks of overlap in the reports for
individial scenarios.

The addition in "user_activity" fixes the output of "wal".  The new
resets done in "level_tracking" and "utility" are added for consistency
with the rest, though they do not affect the stats generated in the
other tests.

Oversight in d0028e3.

Reported-by: Andrei Zubkov
Discussion: https://postgr.es/m/7beb722dd016bf54f1c78bfd6d44a684e28da624.camel@moonset.ru
This commit is contained in:
Michael Paquier 2023-03-07 08:58:13 +09:00
parent 7fee7871b4
commit 9a714b9d6e
7 changed files with 29 additions and 11 deletions
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6
contrib/pg_stat_statements/expected/level_tracking.out
View File

@ -202,3 +202,9 @@ SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
-------+------+-------
(0 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

6
contrib/pg_stat_statements/expected/user_activity.out
View File

@ -197,3 +197,9 @@ SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

6
contrib/pg_stat_statements/expected/utility.out
View File

@ -554,3 +554,9 @@ SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
1 | 0 | SET work_mem = '2MB'
(7 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

19
contrib/pg_stat_statements/expected/wal.out
View File

@ -13,17 +13,14 @@ 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_statements ORDER BY query COLLATE "C";
query | calls | rows | wal_bytes_generated | wal_records_generated | wal_records_ge_rows
------------------------------------------------------------------------------+-------+------+---------------------+-----------------------+---------------------
DELETE FROM pgss_wal_tab WHERE a > $1 | 1 | 1 | t | t | t
DROP ROLE regress_stats_user1 | 1 | 0 | t | t | t
DROP ROLE regress_stats_user2 | 1 | 0 | t | t | t
INSERT INTO pgss_wal_tab VALUES(generate_series($1, $2), $3) | 1 | 10 | t | t | t
SELECT pg_stat_statements_reset(0,0,0) | 1 | 1 | f | f | f
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 1 | 1 | f | f | f
SET pg_stat_statements.track_utility = FALSE | 1 | 0 | f | f | t
UPDATE pgss_wal_tab SET b = $1 WHERE a > $2 | 1 | 3 | t | t | t
(8 rows)
query | calls | rows | wal_bytes_generated | wal_records_generated | wal_records_ge_rows
--------------------------------------------------------------+-------+------+---------------------+-----------------------+---------------------
DELETE FROM pgss_wal_tab WHERE a > $1 | 1 | 1 | t | t | t
INSERT INTO pgss_wal_tab VALUES(generate_series($1, $2), $3) | 1 | 10 | t | t | t
SELECT pg_stat_statements_reset() | 1 | 1 | f | f | f
SET pg_stat_statements.track_utility = FALSE | 1 | 0 | f | f | t
UPDATE pgss_wal_tab SET b = $1 WHERE a > $2 | 1 | 3 | t | t | t
(5 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset

1
contrib/pg_stat_statements/sql/level_tracking.sql
View File

@ -97,3 +97,4 @@ SELECT 1 AS "one";
SELECT 1 + 1 AS "two";
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset();

1
contrib/pg_stat_statements/sql/user_activity.sql
View File

@ -63,3 +63,4 @@ SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;
SELECT pg_stat_statements_reset();

1
contrib/pg_stat_statements/sql/utility.sql
View File

@ -276,3 +276,4 @@ SET enable_seqscan = on;
RESET enable_seqscan;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset();