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Fix nesting level tracking

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This commit is contained in:
Artem Gavrilov
2024-06-07 18:02:21 +02:00
parent 7c36562d42
commit 91c5683e36
6 changed files with 721 additions and 60 deletions
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53
regression/sql/level_tracking.sql
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@@ -34,6 +34,39 @@ END; $$;
SELECT toplevel, calls, query FROM pg_stat_monitor
ORDER BY query COLLATE "C", toplevel;
-- DO block - top-level tracking without utility.
SET pg_stat_monitor.pgsm_track = 'top';
SET pg_stat_monitor.pgsm_track_utility = FALSE;
SELECT pg_stat_monitor_reset();
DELETE FROM stats_track_tab;
DO $$
BEGIN
DELETE FROM stats_track_tab;
END; $$;
DO LANGUAGE plpgsql $$
BEGIN
-- this is a SELECT
PERFORM 'hello world'::TEXT;
END; $$;
SELECT toplevel, calls, query FROM pg_stat_monitor
ORDER BY query COLLATE "C", toplevel;
-- DO block - all-level tracking without utility.
SET pg_stat_monitor.pgsm_track = 'all';
SELECT pg_stat_monitor_reset();
DELETE FROM stats_track_tab;
DO $$
BEGIN
DELETE FROM stats_track_tab;
END; $$;
DO LANGUAGE plpgsql $$
BEGIN
-- this is a SELECT
PERFORM 'hello world'::TEXT;
END; $$;
SELECT toplevel, calls, query FROM pg_stat_monitor
ORDER BY query COLLATE "C", toplevel;
-- PL/pgSQL function - top-level tracking.
SET pg_stat_monitor.pgsm_track = 'top';
SET pg_stat_monitor.pgsm_track_utility = FALSE;
@@ -58,6 +91,15 @@ SELECT PLUS_ONE(10);
SELECT calls, rows, query FROM pg_stat_monitor ORDER BY query COLLATE "C";
-- immutable SQL function --- can be executed at plan time
CREATE FUNCTION PLUS_THREE(i INTEGER) RETURNS INTEGER AS
$$ SELECT i + 3 LIMIT 1 $$ IMMUTABLE LANGUAGE SQL;
SELECT PLUS_THREE(8);
SELECT PLUS_THREE(10);
SELECT toplevel, calls, rows, query FROM pg_stat_monitor ORDER BY query COLLATE "C";
-- PL/pgSQL function - all-level tracking.
SET pg_stat_monitor.pgsm_track = 'all';
SELECT pg_stat_monitor_reset();
@@ -65,6 +107,7 @@ SELECT pg_stat_monitor_reset();
-- we drop and recreate the functions to avoid any caching funnies
DROP FUNCTION PLUS_ONE(INTEGER);
DROP FUNCTION PLUS_TWO(INTEGER);
DROP FUNCTION PLUS_THREE(INTEGER);
-- PL/pgSQL function
CREATE FUNCTION PLUS_TWO(i INTEGER) RETURNS INTEGER AS $$
@@ -86,7 +129,15 @@ SELECT PLUS_ONE(3);
SELECT PLUS_ONE(1);
SELECT calls, rows, query FROM pg_stat_monitor ORDER BY query COLLATE "C";
DROP FUNCTION PLUS_ONE(INTEGER);
-- immutable SQL function --- can be executed at plan time
CREATE FUNCTION PLUS_THREE(i INTEGER) RETURNS INTEGER AS
$$ SELECT i + 3 LIMIT 1 $$ IMMUTABLE LANGUAGE SQL;
SELECT PLUS_THREE(8);
SELECT PLUS_THREE(10);
SELECT toplevel, calls, rows, query FROM pg_stat_monitor ORDER BY query COLLATE "C";
--
-- pg_stat_monitor.pgsm_track = none