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9a714b9d6e
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
31 lines
1.6 KiB
Plaintext
31 lines
1.6 KiB
Plaintext
--
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-- Validate WAL generation metrics
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--
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SET pg_stat_statements.track_utility = FALSE;
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CREATE TABLE pgss_wal_tab (a int, b char(20));
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INSERT INTO pgss_wal_tab VALUES(generate_series(1, 10), 'aaa');
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UPDATE pgss_wal_tab SET b = 'bbb' WHERE a > 7;
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DELETE FROM pgss_wal_tab WHERE a > 9;
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DROP TABLE pgss_wal_tab;
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-- Check WAL is generated for the above statements
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SELECT query, calls, rows,
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wal_bytes > 0 as wal_bytes_generated,
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wal_records > 0 as wal_records_generated,
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wal_records >= rows as wal_records_ge_rows
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FROM pg_stat_statements ORDER BY query COLLATE "C";
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query | calls | rows | wal_bytes_generated | wal_records_generated | wal_records_ge_rows
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--------------------------------------------------------------+-------+------+---------------------+-----------------------+---------------------
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DELETE FROM pgss_wal_tab WHERE a > $1 | 1 | 1 | t | t | t
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INSERT INTO pgss_wal_tab VALUES(generate_series($1, $2), $3) | 1 | 10 | t | t | t
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SELECT pg_stat_statements_reset() | 1 | 1 | f | f | f
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SET pg_stat_statements.track_utility = FALSE | 1 | 0 | f | f | t
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UPDATE pgss_wal_tab SET b = $1 WHERE a > $2 | 1 | 3 | t | t | t
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(5 rows)
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SELECT pg_stat_statements_reset();
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pg_stat_statements_reset
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--------------------------
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(1 row)
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