85 lines
3.2 KiB
Plaintext
85 lines
3.2 KiB
Plaintext
CREATE EXTENSION pg_stat_monitor;
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Set pg_stat_monitor.pgsm_track='all';
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SELECT pg_stat_monitor_reset();
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pg_stat_monitor_reset
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-----------------------
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(1 row)
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CREATE TABLE t1 (a INTEGER);
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CREATE TABLE t2 (b INTEGER);
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CREATE TABLE t3 (c INTEGER);
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CREATE TABLE t4 (d INTEGER);
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SELECT pg_stat_monitor_reset();
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pg_stat_monitor_reset
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-----------------------
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(1 row)
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;
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a | b | c | d
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---+---+---+---
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(0 rows)
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;
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a | b | c | d
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---+---+---+---
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(0 rows)
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;
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a | b | c | d
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---+---+---+---
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(0 rows)
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;
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a | b | c | d
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---+---+---+---
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(0 rows)
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SELECT query,calls FROM pg_stat_monitor ORDER BY query COLLATE "C";
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query | calls
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---------------------------------------------------------------------------------+-------
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a | 4
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SELECT pg_stat_monitor_reset() | 1
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(2 rows)
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SELECT pg_stat_monitor_reset();
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pg_stat_monitor_reset
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-----------------------
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(1 row)
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do $$
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declare
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n integer:= 1;
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begin
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loop
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PERFORM a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;
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exit when n = 1000;
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n := n + 1;
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end loop;
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end $$;
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SELECT query,calls FROM pg_stat_monitor ORDER BY query COLLATE "C";
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query | calls
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---------------------------------------------------------------------------------------------------+-------
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SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a | 1000
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SELECT pg_stat_monitor_reset() | 1
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SELECT query,calls FROM pg_stat_monitor ORDER BY query COLLATE "C" | 1
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do $$ +| 1
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declare +|
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n integer:= 1; +|
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begin +|
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loop +|
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PERFORM a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;+|
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exit when n = 1000; +|
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n := n + 1; +|
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end loop; +|
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end $$ |
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(3 rows)
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DROP TABLE t1;
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DROP TABLE t2;
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DROP TABLE t3;
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DROP TABLE t4;
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DROP EXTENSION pg_stat_monitor;
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