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PG-1907 Add columns to track parallel worker activity

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These are the same counters as were intorduced in pg_stat_statements in
commit cf54a2c.
This commit is contained in:
Artem Gavrilov
2025-09-18 19:04:42 +02:00
committed by Artem Gavrilov
parent 9496937c9f
commit bd0546b7c9
10 changed files with 157 additions and 7 deletions
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1
t/018_column_names.pl
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@@ -31,6 +31,7 @@ my %pg_versions_pgsm_columns = ( 18 => "application_name,".
"local_blk_read_time,local_blk_write_time,local_blks_dirtied,local_blks_hit,".
"local_blks_read,local_blks_written,max_exec_time,max_plan_time,mean_exec_time," .
"mean_plan_time,message,min_exec_time,min_plan_time,minmax_stats_since," .
"parallel_workers_launched,parallel_workers_to_launch," .
"pgsm_query_id,planid,plans,query,query_plan,queryid,relations,resp_calls,rows," .
"shared_blk_read_time,shared_blk_write_time,shared_blks_dirtied," .
"shared_blks_hit,shared_blks_read,shared_blks_written,sqlcode,stats_since," .

32
t/025_compare_pgss.pl
View File

@@ -145,6 +145,14 @@ if ($PGSM::PG_MAJOR_VERSION >= 18)
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.wal_buffers_full) = SUM(PGSS.wal_buffers_full) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%DELETE FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: wal_buffers_full are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_to_launch) = SUM(PGSS.parallel_workers_to_launch) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%DELETE FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_to_launch are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_launched) = SUM(PGSS.parallel_workers_launched) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%DELETE FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_launched are equal.");
}
# Compare values for query 'INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES ($1, $2, $3, $4, CURRENT_TIMESTAMP)'
@@ -201,6 +209,14 @@ if ($PGSM::PG_MAJOR_VERSION >= 18)
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.wal_buffers_full) = SUM(PGSS.wal_buffers_full) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%INSERT INTO pgbench_history%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: wal_buffers_full are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_to_launch) = SUM(PGSS.parallel_workers_to_launch) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%INSERT INTO pgbench_history%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_to_launch are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_launched) = SUM(PGSS.parallel_workers_launched) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%INSERT INTO pgbench_history%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_launched are equal.");
}
# Compare values for query 'SELECT abalance FROM pgbench_accounts WHERE aid = $1'
@@ -257,6 +273,14 @@ if ($PGSM::PG_MAJOR_VERSION >= 18)
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.wal_buffers_full) = SUM(PGSS.wal_buffers_full) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%SELECT abalance FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: wal_buffers_full are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_to_launch) = SUM(PGSS.parallel_workers_to_launch) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%SELECT abalance FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_to_launch are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_launched) = SUM(PGSS.parallel_workers_launched) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%SELECT abalance FROM pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_launched are equal.");
}
# Compare values for query 'UPDATE pgbench_accounts SET abalance = abalance + $1 WHERE aid = $2'
@@ -309,6 +333,14 @@ if ($PGSM::PG_MAJOR_VERSION >= 18)
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.wal_buffers_full) = SUM(PGSS.wal_buffers_full) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%UPDATE pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: wal_buffers_full are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_to_launch) = SUM(PGSS.parallel_workers_to_launch) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%UPDATE pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_to_launch are equal.");
($cmdret, $stdout, $stderr) = $node->psql('postgres', 'SELECT SUM(PGSM.parallel_workers_launched) = SUM(PGSS.parallel_workers_launched) FROM pg_stat_monitor AS PGSM INNER JOIN pg_stat_statements AS PGSS ON PGSS.query = PGSM.query WHERE PGSM.query LIKE \'%UPDATE pgbench_accounts%\' GROUP BY PGSM.query;', extra_params => ['-Pformat=unaligned','-Ptuples_only=on']);
trim($stdout);
is($stdout,'t',"Compare: parallel_workers_launched are equal.");
}
# DROP EXTENSION