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Refactor more the regression tests of pg_stat_statements

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This commit expands more the refactoring of the regression tests of
pg_stat_statements, with tests moved out of pg_stat_statements.sql into
separate files.  The following file structure is now used:
- select is mostly the former pg_stat_statements.sql, renamed.
- dml for INSERT/UPDATE/DELETE and MERGE
- user_activity, to test role-level checks and stat resets.
- wal, to check the WAL generation after some queries.

Like e8dbdb1, there is no change in terms of code coverage or results,
and this finishes the split I was aiming for in these tests.  Most of
the tests used "test" of "pgss_test" as names for the tables used, these
are renamed to less generic names.

Reviewed-by: Bertrand Drouvot
Discussion: https://postgr.es/m/Y/7Y9U/y/keAW3qH@paquier.xyz
pull/132/head^2
Michael Paquier 2 years ago
parent 98a88bc2bc
commit d0028e35a0
12 changed files with 1109 additions and 1071 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 4
      contrib/pg_stat_statements/Makefile
  2. 147
      contrib/pg_stat_statements/expected/dml.out
  3. 768
      contrib/pg_stat_statements/expected/pg_stat_statements.out
  4. 414
      contrib/pg_stat_statements/expected/select.out
  5. 199
      contrib/pg_stat_statements/expected/user_activity.out
  6. 33
      contrib/pg_stat_statements/expected/wal.out
  7. 5
      contrib/pg_stat_statements/meson.build
  8. 76
      contrib/pg_stat_statements/sql/dml.sql
  9. 300
      contrib/pg_stat_statements/sql/pg_stat_statements.sql
  10. 149
      contrib/pg_stat_statements/sql/select.sql
  11. 65
      contrib/pg_stat_statements/sql/user_activity.sql
  12. 20
      contrib/pg_stat_statements/sql/wal.sql

4
contrib/pg_stat_statements/Makefile
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@ -17,8 +17,8 @@ PGFILEDESC = "pg_stat_statements - execution statistics of SQL statements"
LDFLAGS_SL += $(filter -lm, $(LIBS)) LDFLAGS_SL += $(filter -lm, $(LIBS))
REGRESS_OPTS = --temp-config $(top_srcdir)/contrib/pg_stat_statements/pg_stat_statements.conf REGRESS_OPTS = --temp-config $(top_srcdir)/contrib/pg_stat_statements/pg_stat_statements.conf
REGRESS = pg_stat_statements cursors utility level_tracking planning \ REGRESS = select dml cursors utility level_tracking planning \
cleanup oldextversions user_activity wal cleanup oldextversions
# Disabled because these tests require "shared_preload_libraries=pg_stat_statements", # Disabled because these tests require "shared_preload_libraries=pg_stat_statements",
# which typical installcheck users do not have (e.g. buildfarm clients). # which typical installcheck users do not have (e.g. buildfarm clients).
NO_INSTALLCHECK = 1 NO_INSTALLCHECK = 1

147
contrib/pg_stat_statements/expected/dml.out
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@ -0,0 +1,147 @@
--
-- DMLs on test table
--
SET pg_stat_statements.track_utility = FALSE;
CREATE TEMP TABLE pgss_dml_tab (a int, b char(20));
INSERT INTO pgss_dml_tab VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_dml_tab SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_dml_tab WHERE a > 9;
-- explicit transaction
BEGIN;
UPDATE pgss_dml_tab SET b = '111' WHERE a = 1 ;
COMMIT;
BEGIN \;
UPDATE pgss_dml_tab SET b = '222' WHERE a = 2 \;
COMMIT ;
UPDATE pgss_dml_tab SET b = '333' WHERE a = 3 \;
UPDATE pgss_dml_tab SET b = '444' WHERE a = 4 ;
BEGIN \;
UPDATE pgss_dml_tab SET b = '555' WHERE a = 5 \;
UPDATE pgss_dml_tab SET b = '666' WHERE a = 6 \;
COMMIT ;
-- many INSERT values
INSERT INTO pgss_dml_tab (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
-- SELECT with constants
SELECT * FROM pgss_dml_tab WHERE a > 5 ORDER BY a ;
a | b
---+----------------------
6 | 666
7 | aaa
8 | bbb
9 | bbb
(4 rows)
SELECT *
FROM pgss_dml_tab
WHERE a > 9
ORDER BY a ;
a | b
---+---
(0 rows)
-- these two need to be done on a different table
-- SELECT without constants
SELECT * FROM pgss_dml_tab ORDER BY a;
a | b
---+----------------------
1 | a
1 | 111
2 | b
2 | 222
3 | c
3 | 333
4 | 444
5 | 555
6 | 666
7 | aaa
8 | bbb
9 | bbb
(12 rows)
-- SELECT with IN clause
SELECT * FROM pgss_dml_tab WHERE a IN (1, 2, 3, 4, 5);
a | b
---+----------------------
1 | 111
2 | 222
3 | 333
4 | 444
5 | 555
1 | a
2 | b
3 | c
(8 rows)
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | rows | query
-------+------+---------------------------------------------------------------------
1 | 1 | DELETE FROM pgss_dml_tab WHERE a > $1
1 | 3 | INSERT INTO pgss_dml_tab (a, b) VALUES ($1, $2), ($3, $4), ($5, $6)
1 | 10 | INSERT INTO pgss_dml_tab VALUES(generate_series($1, $2), $3)
1 | 12 | SELECT * FROM pgss_dml_tab ORDER BY a
2 | 4 | SELECT * FROM pgss_dml_tab WHERE a > $1 ORDER BY a
1 | 8 | SELECT * FROM pgss_dml_tab WHERE a IN ($1, $2, $3, $4, $5)
1 | 1 | SELECT pg_stat_statements_reset()
1 | 0 | SET pg_stat_statements.track_utility = FALSE
6 | 6 | UPDATE pgss_dml_tab SET b = $1 WHERE a = $2
1 | 3 | UPDATE pgss_dml_tab SET b = $1 WHERE a > $2
(10 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
-- MERGE
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = pgss_dml_tab.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED AND length(st.b) > 1 THEN UPDATE SET b = pgss_dml_tab.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (a, b) VALUES (0, NULL);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT VALUES (0, NULL); -- same as above
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (b, a) VALUES (NULL, 0);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (a) VALUES (0);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN DELETE;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN DO NOTHING;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN NOT MATCHED THEN DO NOTHING;
DROP TABLE pgss_dml_tab;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | rows | query
-------+------+-----------------------------------------------------------------------------------------
1 | 6 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN MATCHED AND length(st.b) > $2 THEN UPDATE SET b = pgss_dml_tab.b || st.a::text
1 | 6 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN MATCHED THEN DELETE
1 | 0 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN MATCHED THEN DO NOTHING
1 | 6 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN MATCHED THEN UPDATE SET b = pgss_dml_tab.b || st.a::text
1 | 6 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text
1 | 0 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= $1)+
| | WHEN NOT MATCHED THEN DO NOTHING
1 | 0 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a) +
| | WHEN NOT MATCHED THEN INSERT (a) VALUES ($1)
2 | 0 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a) +
| | WHEN NOT MATCHED THEN INSERT (a, b) VALUES ($1, $2)
1 | 0 | MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a) +
| | WHEN NOT MATCHED THEN INSERT (b, a) VALUES ($1, $2)
1 | 1 | SELECT pg_stat_statements_reset()
(10 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

768
contrib/pg_stat_statements/expected/pg_stat_statements.out
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@ -1,768 +0,0 @@
CREATE EXTENSION pg_stat_statements;
--
-- simple and compound statements
--
SET pg_stat_statements.track_utility = FALSE;
SET pg_stat_statements.track_planning = TRUE;
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
SELECT 1 AS "int";
int
-----
1
(1 row)
SELECT 'hello'
-- multiline
AS "text";
text
-------
hello
(1 row)
SELECT 'world' AS "text";
text
-------
world
(1 row)
-- transaction
BEGIN;
SELECT 1 AS "int";
int
-----
1
(1 row)
SELECT 'hello' AS "text";
text
-------
hello
(1 row)
COMMIT;
-- compound transaction
BEGIN \;
SELECT 2.0 AS "float" \;
SELECT 'world' AS "text" \;
COMMIT;
float
-------
2.0
(1 row)
text
-------
world
(1 row)
-- compound with empty statements and spurious leading spacing
\;\; SELECT 3 + 3 \;\;\; SELECT ' ' || ' !' \;\; SELECT 1 + 4 \;;
?column?
----------
6
(1 row)
?column?
----------
!
(1 row)
?column?
----------
5
(1 row)
-- non ;-terminated statements
SELECT 1 + 1 + 1 AS "add" \gset
SELECT :add + 1 + 1 AS "add" \;
SELECT :add + 1 + 1 AS "add" \gset
add
-----
5
(1 row)
-- set operator
SELECT 1 AS i UNION SELECT 2 ORDER BY i;
i
---
1
2
(2 rows)
-- ? operator
select '{"a":1, "b":2}'::jsonb ? 'b';
?column?
----------
t
(1 row)
-- cte
WITH t(f) AS (
VALUES (1.0), (2.0)
)
SELECT f FROM t ORDER BY f;
f
-----
1.0
2.0
(2 rows)
-- prepared statement with parameter
PREPARE pgss_test (int) AS SELECT $1, 'test' LIMIT 1;
EXECUTE pgss_test(1);
?column? | ?column?
----------+----------
1 | test
(1 row)
DEALLOCATE pgss_test;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
PREPARE pgss_test (int) AS SELECT $1, $2 LIMIT $3 | 1 | 1
SELECT $1 +| 4 | 4
-- multiline +| |
AS "text" | |
SELECT $1 + $2 | 2 | 2
SELECT $1 + $2 + $3 AS "add" | 3 | 3
SELECT $1 AS "float" | 1 | 1
SELECT $1 AS "int" | 2 | 2
SELECT $1 AS i UNION SELECT $2 ORDER BY i | 1 | 2
SELECT $1 || $2 | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 0 | 0
WITH t(f) AS ( +| 1 | 2
VALUES ($1), ($2) +| |
) +| |
SELECT f FROM t ORDER BY f | |
select $1::jsonb ? $2 | 1 | 1
(12 rows)
--
-- CRUD: INSERT SELECT UPDATE DELETE on test table
--
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
-- utility "create table" should not be shown
CREATE TEMP TABLE test (a int, b char(20));
INSERT INTO test VALUES(generate_series(1, 10), 'aaa');
UPDATE test SET b = 'bbb' WHERE a > 7;
DELETE FROM test WHERE a > 9;
-- explicit transaction
BEGIN;
UPDATE test SET b = '111' WHERE a = 1 ;
COMMIT;
BEGIN \;
UPDATE test SET b = '222' WHERE a = 2 \;
COMMIT ;
UPDATE test SET b = '333' WHERE a = 3 \;
UPDATE test SET b = '444' WHERE a = 4 ;
BEGIN \;
UPDATE test SET b = '555' WHERE a = 5 \;
UPDATE test SET b = '666' WHERE a = 6 \;
COMMIT ;
-- many INSERT values
INSERT INTO test (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
-- SELECT with constants
SELECT * FROM test WHERE a > 5 ORDER BY a ;
a | b
---+----------------------
6 | 666
7 | aaa
8 | bbb
9 | bbb
(4 rows)
SELECT *
FROM test
WHERE a > 9
ORDER BY a ;
a | b
---+---
(0 rows)
-- SELECT without constants
SELECT * FROM test ORDER BY a;
a | b
---+----------------------
1 | a
1 | 111
2 | b
2 | 222
3 | c
3 | 333
4 | 444
5 | 555
6 | 666
7 | aaa
8 | bbb
9 | bbb
(12 rows)
-- SELECT with IN clause
SELECT * FROM test WHERE a IN (1, 2, 3, 4, 5);
a | b
---+----------------------
1 | 111
2 | 222
3 | 333
4 | 444
5 | 555
1 | a
2 | b
3 | c
(8 rows)
-- MERGE
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = test.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED AND length(st.b) > 1 THEN UPDATE SET b = test.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (a, b) VALUES (0, NULL);
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT VALUES (0, NULL); -- same as above
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (b, a) VALUES (NULL, 0);
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (a) VALUES (0);
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN DELETE;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN DO NOTHING;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN NOT MATCHED THEN DO NOTHING;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
DELETE FROM test WHERE a > $1 | 1 | 1
INSERT INTO test (a, b) VALUES ($1, $2), ($3, $4), ($5, $6) | 1 | 3
INSERT INTO test VALUES(generate_series($1, $2), $3) | 1 | 10
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 6
WHEN MATCHED AND length(st.b) > $2 THEN UPDATE SET b = test.b || st.a::text | |
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 6
WHEN MATCHED THEN DELETE | |
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 0
WHEN MATCHED THEN DO NOTHING | |
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 6
WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text | |
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 6
WHEN MATCHED THEN UPDATE SET b = test.b || st.a::text | |
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= $1) +| 1 | 0
WHEN NOT MATCHED THEN DO NOTHING | |
MERGE INTO test USING test st ON (st.a = test.a) +| 1 | 0
WHEN NOT MATCHED THEN INSERT (a) VALUES ($1) | |
MERGE INTO test USING test st ON (st.a = test.a) +| 2 | 0
WHEN NOT MATCHED THEN INSERT (a, b) VALUES ($1, $2) | |
MERGE INTO test USING test st ON (st.a = test.a) +| 1 | 0
WHEN NOT MATCHED THEN INSERT (b, a) VALUES ($1, $2) | |
SELECT * FROM test ORDER BY a | 1 | 12
SELECT * FROM test WHERE a > $1 ORDER BY a | 2 | 4
SELECT * FROM test WHERE a IN ($1, $2, $3, $4, $5) | 1 | 8
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 0 | 0
UPDATE test SET b = $1 WHERE a = $2 | 6 | 6
UPDATE test SET b = $1 WHERE a > $2 | 1 | 3
(19 rows)
--
-- INSERT, UPDATE, DELETE on test table to validate WAL generation metrics
--
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
-- utility "create table" should not be shown
CREATE TABLE pgss_test (a int, b char(20));
INSERT INTO pgss_test VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_test SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_test WHERE a > 9;
-- DROP test table
DROP TABLE pgss_test;
-- Check WAL is generated for the above statements
SELECT query, calls, rows,
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_test WHERE a > $1 | 1 | 1 | t | t | t
INSERT INTO pgss_test VALUES(generate_series($1, $2), $3) | 1 | 10 | t | t | t
SELECT pg_stat_statements_reset() | 1 | 1 | f | f | f
SELECT query, calls, rows, +| 0 | 0 | f | f | t
wal_bytes > $1 as wal_bytes_generated, +| | | | |
wal_records > $2 as wal_records_generated, +| | | | |
wal_records >= rows as wal_records_ge_rows +| | | | |
FROM pg_stat_statements ORDER BY query COLLATE "C" | | | | |
UPDATE pgss_test SET b = $1 WHERE a > $2 | 1 | 3 | t | t | t
(5 rows)
--
-- queries with locking clauses
--
CREATE TABLE pgss_a (id integer PRIMARY KEY);
CREATE TABLE pgss_b (id integer PRIMARY KEY, a_id integer REFERENCES pgss_a);
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
-- control query
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id;
id | id | a_id
----+----+------
(0 rows)
-- test range tables
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a, pgss_b; -- matches plain "FOR UPDATE"
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a;
id | id | a_id
----+----+------
(0 rows)
-- test strengths
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE;
id | id | a_id
----+----+------
(0 rows)
-- test wait policies
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED;
id | id | a_id
----+----+------
(0 rows)
SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | query
-------+------------------------------------------------------------------------------------------
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE
2 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED
0 | SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C"
1 | SELECT pg_stat_statements_reset()
(12 rows)
DROP TABLE pgss_a, pgss_b CASCADE;
--
-- Track user activity and reset them
--
SET pg_stat_statements.track_utility = TRUE;
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
CREATE ROLE regress_stats_user1;
CREATE ROLE regress_stats_user2;
SET ROLE regress_stats_user1;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SET ROLE regress_stats_user2;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 0 | 0
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(11 rows)
--
-- Don't reset anything if any of the parameter is NULL
--
SELECT pg_stat_statements_reset(NULL);
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 1 | 11
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- remove query ('SELECT $1+$2 AS "TWO"') executed by regress_stats_user2
-- in the current_database
--
SELECT pg_stat_statements_reset(
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user2'),
(SELECT d.oid FROM pg_database As d where datname = current_database()),
(SELECT s.queryid FROM pg_stat_statements AS s
WHERE s.query = 'SELECT $1+$2 AS "TWO"' LIMIT 1));
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 2 | 23
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- remove query ('SELECT $1 AS "ONE"') executed by two users
--
SELECT pg_stat_statements_reset(0,0,s.queryid)
FROM pg_stat_statements AS s WHERE s.query = 'SELECT $1 AS "ONE"';
pg_stat_statements_reset
--------------------------
(2 rows)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 3 | 35
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(11 rows)
--
-- remove query of a user (regress_stats_user1)
--
SELECT pg_stat_statements_reset(r.oid)
FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user1';
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() | 1 | 1
SELECT pg_stat_statements_reset(r.oid) +| 1 | 1
FROM pg_roles AS r WHERE r.rolname = $1 | |
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 4 | 46
SET ROLE regress_stats_user2 | 1 | 0
(10 rows)
--
-- reset all
--
SELECT pg_stat_statements_reset(0,0,0);
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
SELECT pg_stat_statements_reset(0,0,0) | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 0 | 0
(2 rows)
--
-- cleanup
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;
--
-- access to pg_stat_statements_info view
--
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
SELECT dealloc FROM pg_stat_statements_info;
dealloc
---------
0
(1 row)
-- FROM [ONLY]
CREATE TABLE tbl_inh(id integer);
CREATE TABLE tbl_inh_1() INHERITS (tbl_inh);
INSERT INTO tbl_inh_1 SELECT 1;
SELECT * FROM tbl_inh;
id
----
1
(1 row)
SELECT * FROM ONLY tbl_inh;
id
----
(0 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FROM%tbl_inh%';
count
-------
2
(1 row)
-- WITH TIES
CREATE TABLE limitoption AS SELECT 0 AS val FROM generate_series(1, 10);
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROWS WITH TIES;
val
-----
0
0
0
0
0
0
0
0
0
0
(10 rows)
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROW ONLY;
val
-----
0
0
(2 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FETCH FIRST%';
count
-------
2
(1 row)
-- GROUP BY [DISTINCT]
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
a | b | c
---+---+---
1 | 2 | 3
1 | 2 |
1 | 2 |
1 | | 3
1 | | 3
1 | |
1 | |
1 | |
4 | | 6
4 | | 6
4 | | 6
4 | |
4 | |
4 | |
4 | |
4 | |
7 | 8 | 9
7 | 8 |
7 | 8 |
7 | | 9
7 | | 9
7 | |
7 | |
7 | |
| |
(25 rows)
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY DISTINCT ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
a | b | c
---+---+---
1 | 2 | 3
1 | 2 |
1 | | 3
1 | |
4 | | 6
4 | | 6
4 | |
4 | |
7 | 8 | 9
7 | 8 |
7 | | 9
7 | |
| |
(13 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%GROUP BY%ROLLUP%';
count
-------
2
(1 row)
-- GROUPING SET agglevelsup
SELECT (
SELECT (
SELECT GROUPING(a,b) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
grouping
----------
0
0
0
(3 rows)
SELECT (
SELECT (
SELECT GROUPING(e,f) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
grouping
----------
3
0
1
(3 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%SELECT GROUPING%';
count
-------
2
(1 row)

414
contrib/pg_stat_statements/expected/select.out
Unescape View File

@ -0,0 +1,414 @@
--
-- SELECT statements
--
CREATE EXTENSION pg_stat_statements;
SET pg_stat_statements.track_utility = FALSE;
SET pg_stat_statements.track_planning = TRUE;
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
--
-- simple and compound statements
--
SELECT 1 AS "int";
int
-----
1
(1 row)
SELECT 'hello'
-- multiline
AS "text";
text
-------
hello
(1 row)
SELECT 'world' AS "text";
text
-------
world
(1 row)
-- transaction
BEGIN;
SELECT 1 AS "int";
int
-----
1
(1 row)
SELECT 'hello' AS "text";
text
-------
hello
(1 row)
COMMIT;
-- compound transaction
BEGIN \;
SELECT 2.0 AS "float" \;
SELECT 'world' AS "text" \;
COMMIT;
float
-------
2.0
(1 row)
text
-------
world
(1 row)
-- compound with empty statements and spurious leading spacing
\;\; SELECT 3 + 3 \;\;\; SELECT ' ' || ' !' \;\; SELECT 1 + 4 \;;
?column?
----------
6
(1 row)
?column?
----------
!
(1 row)
?column?
----------
5
(1 row)
-- non ;-terminated statements
SELECT 1 + 1 + 1 AS "add" \gset
SELECT :add + 1 + 1 AS "add" \;
SELECT :add + 1 + 1 AS "add" \gset
add
-----
5
(1 row)
-- set operator
SELECT 1 AS i UNION SELECT 2 ORDER BY i;
i
---
1
2
(2 rows)
-- ? operator
select '{"a":1, "b":2}'::jsonb ? 'b';
?column?
----------
t
(1 row)
-- cte
WITH t(f) AS (
VALUES (1.0), (2.0)
)
SELECT f FROM t ORDER BY f;
f
-----
1.0
2.0
(2 rows)
-- prepared statement with parameter
PREPARE pgss_test (int) AS SELECT $1, 'test' LIMIT 1;
EXECUTE pgss_test(1);
?column? | ?column?
----------+----------
1 | test
(1 row)
DEALLOCATE pgss_test;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | rows | query
-------+------+------------------------------------------------------------------------------
1 | 1 | PREPARE pgss_test (int) AS SELECT $1, $2 LIMIT $3
4 | 4 | SELECT $1 +
| | -- multiline +
| | AS "text"
2 | 2 | SELECT $1 + $2
3 | 3 | SELECT $1 + $2 + $3 AS "add"
1 | 1 | SELECT $1 AS "float"
2 | 2 | SELECT $1 AS "int"
1 | 2 | SELECT $1 AS i UNION SELECT $2 ORDER BY i
1 | 1 | SELECT $1 || $2
0 | 0 | SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C"
1 | 1 | SELECT pg_stat_statements_reset()
1 | 2 | WITH t(f) AS ( +
| | VALUES ($1), ($2) +
| | ) +
| | SELECT f FROM t ORDER BY f
1 | 1 | select $1::jsonb ? $2
(12 rows)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
--
-- queries with locking clauses
--
CREATE TABLE pgss_a (id integer PRIMARY KEY);
CREATE TABLE pgss_b (id integer PRIMARY KEY, a_id integer REFERENCES pgss_a);
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
-- control query
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id;
id | id | a_id
----+----+------
(0 rows)
-- test range tables
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a, pgss_b; -- matches plain "FOR UPDATE"
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a;
id | id | a_id
----+----+------
(0 rows)
-- test strengths
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE;
id | id | a_id
----+----+------
(0 rows)
-- test wait policies
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT;
id | id | a_id
----+----+------
(0 rows)
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED;
id | id | a_id
----+----+------
(0 rows)
SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | query
-------+------------------------------------------------------------------------------------------
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE
2 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a
1 | SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED
0 | SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C"
1 | SELECT pg_stat_statements_reset()
(12 rows)
DROP TABLE pgss_a, pgss_b CASCADE;
--
-- access to pg_stat_statements_info view
--
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
SELECT dealloc FROM pg_stat_statements_info;
dealloc
---------
0
(1 row)
-- FROM [ONLY]
CREATE TABLE tbl_inh(id integer);
CREATE TABLE tbl_inh_1() INHERITS (tbl_inh);
INSERT INTO tbl_inh_1 SELECT 1;
SELECT * FROM tbl_inh;
id
----
1
(1 row)
SELECT * FROM ONLY tbl_inh;
id
----
(0 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FROM%tbl_inh%';
count
-------
2
(1 row)
-- WITH TIES
CREATE TABLE limitoption AS SELECT 0 AS val FROM generate_series(1, 10);
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROWS WITH TIES;
val
-----
0
0
0
0
0
0
0
0
0
0
(10 rows)
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROW ONLY;
val
-----
0
0
(2 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FETCH FIRST%';
count
-------
2
(1 row)
-- GROUP BY [DISTINCT]
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
a | b | c
---+---+---
1 | 2 | 3
1 | 2 |
1 | 2 |
1 | | 3
1 | | 3
1 | |
1 | |
1 | |
4 | | 6
4 | | 6
4 | | 6
4 | |
4 | |
4 | |
4 | |
4 | |
7 | 8 | 9
7 | 8 |
7 | 8 |
7 | | 9
7 | | 9
7 | |
7 | |
7 | |
| |
(25 rows)
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY DISTINCT ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
a | b | c
---+---+---
1 | 2 | 3
1 | 2 |
1 | | 3
1 | |
4 | | 6
4 | | 6
4 | |
4 | |
7 | 8 | 9
7 | 8 |
7 | | 9
7 | |
| |
(13 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%GROUP BY%ROLLUP%';
count
-------
2
(1 row)
-- GROUPING SET agglevelsup
SELECT (
SELECT (
SELECT GROUPING(a,b) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
grouping
----------
0
0
0
(3 rows)
SELECT (
SELECT (
SELECT GROUPING(e,f) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
grouping
----------
3
0
1
(3 rows)
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%SELECT GROUPING%';
count
-------
2
(1 row)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

199
contrib/pg_stat_statements/expected/user_activity.out
Unescape View File

@ -0,0 +1,199 @@
--
-- Track user activity and reset them
--
SET pg_stat_statements.track_utility = TRUE;
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)
CREATE ROLE regress_stats_user1;
CREATE ROLE regress_stats_user2;
SET ROLE regress_stats_user1;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SET ROLE regress_stats_user2;
SELECT 1 AS "ONE";
ONE
-----
1
(1 row)
SELECT 1+1 AS "TWO";
TWO
-----
2
(1 row)
RESET ROLE;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
-----------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(10 rows)
--
-- Don't reset anything if any of the parameter is NULL
--
SELECT pg_stat_statements_reset(NULL);
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 1 | 10
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- remove query ('SELECT $1+$2 AS "TWO"') executed by regress_stats_user2
-- in the current_database
--
SELECT pg_stat_statements_reset(
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user2'),
(SELECT d.oid FROM pg_database As d where datname = current_database()),
(SELECT s.queryid FROM pg_stat_statements AS s
WHERE s.query = 'SELECT $1+$2 AS "TWO"' LIMIT 1));
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1 AS "ONE" | 1 | 1
SELECT $1 AS "ONE" | 1 | 1
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 2 | 22
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(12 rows)
--
-- remove query ('SELECT $1 AS "ONE"') executed by two users
--
SELECT pg_stat_statements_reset(0,0,s.queryid)
FROM pg_stat_statements AS s WHERE s.query = 'SELECT $1 AS "ONE"';
pg_stat_statements_reset
--------------------------
(2 rows)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT $1+$2 AS "TWO" | 1 | 1
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() | 1 | 1
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 3 | 34
SET ROLE regress_stats_user1 | 1 | 0
SET ROLE regress_stats_user2 | 1 | 0
(11 rows)
--
-- remove query of a user (regress_stats_user1)
--
SELECT pg_stat_statements_reset(r.oid)
FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user1';
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------------------------------------------------+-------+------
CREATE ROLE regress_stats_user1 | 1 | 0
CREATE ROLE regress_stats_user2 | 1 | 0
RESET ROLE | 2 | 0
SELECT pg_stat_statements_reset( +| 1 | 1
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = $1), +| |
(SELECT d.oid FROM pg_database As d where datname = current_database()),+| |
(SELECT s.queryid FROM pg_stat_statements AS s +| |
WHERE s.query = $2 LIMIT $3)) | |
SELECT pg_stat_statements_reset($1) | 1 | 1
SELECT pg_stat_statements_reset($1,$2,s.queryid) +| 1 | 2
FROM pg_stat_statements AS s WHERE s.query = $3 | |
SELECT pg_stat_statements_reset() | 1 | 1
SELECT pg_stat_statements_reset(r.oid) +| 1 | 1
FROM pg_roles AS r WHERE r.rolname = $1 | |
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C" | 4 | 45
SET ROLE regress_stats_user2 | 1 | 0
(10 rows)
--
-- reset all
--
SELECT pg_stat_statements_reset(0,0,0);
pg_stat_statements_reset
--------------------------
(1 row)
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls | rows
----------------------------------------+-------+------
SELECT pg_stat_statements_reset(0,0,0) | 1 | 1
(1 row)
--
-- cleanup
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;

33
contrib/pg_stat_statements/expected/wal.out
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@ -0,0 +1,33 @@
--
-- Validate WAL generation metrics
--
SET pg_stat_statements.track_utility = FALSE;
CREATE TABLE pgss_wal_tab (a int, b char(20));
INSERT INTO pgss_wal_tab VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_wal_tab SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_wal_tab WHERE a > 9;
DROP TABLE pgss_wal_tab;
-- Check WAL is generated for the above statements
SELECT query, calls, rows,
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)
SELECT pg_stat_statements_reset();
pg_stat_statements_reset
--------------------------
(1 row)

5
contrib/pg_stat_statements/meson.build
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@ -40,11 +40,14 @@ tests += {
'bd': meson.current_build_dir(), 'bd': meson.current_build_dir(),
'regress': { 'regress': {
'sql': [ 'sql': [
'pg_stat_statements', 'select',
'dml',
'cursors', 'cursors',
'utility', 'utility',
'level_tracking', 'level_tracking',
'planning', 'planning',
'user_activity',
'wal',
'cleanup', 'cleanup',
'oldextversions', 'oldextversions',
], ],

76
contrib/pg_stat_statements/sql/dml.sql
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@ -0,0 +1,76 @@
--
-- DMLs on test table
--
SET pg_stat_statements.track_utility = FALSE;
CREATE TEMP TABLE pgss_dml_tab (a int, b char(20));
INSERT INTO pgss_dml_tab VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_dml_tab SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_dml_tab WHERE a > 9;
-- explicit transaction
BEGIN;
UPDATE pgss_dml_tab SET b = '111' WHERE a = 1 ;
COMMIT;
BEGIN \;
UPDATE pgss_dml_tab SET b = '222' WHERE a = 2 \;
COMMIT ;
UPDATE pgss_dml_tab SET b = '333' WHERE a = 3 \;
UPDATE pgss_dml_tab SET b = '444' WHERE a = 4 ;
BEGIN \;
UPDATE pgss_dml_tab SET b = '555' WHERE a = 5 \;
UPDATE pgss_dml_tab SET b = '666' WHERE a = 6 \;
COMMIT ;
-- many INSERT values
INSERT INTO pgss_dml_tab (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
-- SELECT with constants
SELECT * FROM pgss_dml_tab WHERE a > 5 ORDER BY a ;
SELECT *
FROM pgss_dml_tab
WHERE a > 9
ORDER BY a ;
-- these two need to be done on a different table
-- SELECT without constants
SELECT * FROM pgss_dml_tab ORDER BY a;
-- SELECT with IN clause
SELECT * FROM pgss_dml_tab WHERE a IN (1, 2, 3, 4, 5);
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset();
-- MERGE
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = pgss_dml_tab.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED AND length(st.b) > 1 THEN UPDATE SET b = pgss_dml_tab.b || st.a::text;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (a, b) VALUES (0, NULL);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT VALUES (0, NULL); -- same as above
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (b, a) VALUES (NULL, 0);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a)
WHEN NOT MATCHED THEN INSERT (a) VALUES (0);
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN DELETE;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN MATCHED THEN DO NOTHING;
MERGE INTO pgss_dml_tab USING pgss_dml_tab st ON (st.a = pgss_dml_tab.a AND st.a >= 4)
WHEN NOT MATCHED THEN DO NOTHING;
DROP TABLE pgss_dml_tab;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset();

300
contrib/pg_stat_statements/sql/pg_stat_statements.sql
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@ -1,300 +0,0 @@
CREATE EXTENSION pg_stat_statements;
--
-- simple and compound statements
--
SET pg_stat_statements.track_utility = FALSE;
SET pg_stat_statements.track_planning = TRUE;
SELECT pg_stat_statements_reset();
SELECT 1 AS "int";
SELECT 'hello'
-- multiline
AS "text";
SELECT 'world' AS "text";
-- transaction
BEGIN;
SELECT 1 AS "int";
SELECT 'hello' AS "text";
COMMIT;
-- compound transaction
BEGIN \;
SELECT 2.0 AS "float" \;
SELECT 'world' AS "text" \;
COMMIT;
-- compound with empty statements and spurious leading spacing
\;\; SELECT 3 + 3 \;\;\; SELECT ' ' || ' !' \;\; SELECT 1 + 4 \;;
-- non ;-terminated statements
SELECT 1 + 1 + 1 AS "add" \gset
SELECT :add + 1 + 1 AS "add" \;
SELECT :add + 1 + 1 AS "add" \gset
-- set operator
SELECT 1 AS i UNION SELECT 2 ORDER BY i;
-- ? operator
select '{"a":1, "b":2}'::jsonb ? 'b';
-- cte
WITH t(f) AS (
VALUES (1.0), (2.0)
)
SELECT f FROM t ORDER BY f;
-- prepared statement with parameter
PREPARE pgss_test (int) AS SELECT $1, 'test' LIMIT 1;
EXECUTE pgss_test(1);
DEALLOCATE pgss_test;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- CRUD: INSERT SELECT UPDATE DELETE on test table
--
SELECT pg_stat_statements_reset();
-- utility "create table" should not be shown
CREATE TEMP TABLE test (a int, b char(20));
INSERT INTO test VALUES(generate_series(1, 10), 'aaa');
UPDATE test SET b = 'bbb' WHERE a > 7;
DELETE FROM test WHERE a > 9;
-- explicit transaction
BEGIN;
UPDATE test SET b = '111' WHERE a = 1 ;
COMMIT;
BEGIN \;
UPDATE test SET b = '222' WHERE a = 2 \;
COMMIT ;
UPDATE test SET b = '333' WHERE a = 3 \;
UPDATE test SET b = '444' WHERE a = 4 ;
BEGIN \;
UPDATE test SET b = '555' WHERE a = 5 \;
UPDATE test SET b = '666' WHERE a = 6 \;
COMMIT ;
-- many INSERT values
INSERT INTO test (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
-- SELECT with constants
SELECT * FROM test WHERE a > 5 ORDER BY a ;
SELECT *
FROM test
WHERE a > 9
ORDER BY a ;
-- SELECT without constants
SELECT * FROM test ORDER BY a;
-- SELECT with IN clause
SELECT * FROM test WHERE a IN (1, 2, 3, 4, 5);
-- MERGE
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = st.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN UPDATE SET b = test.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED AND length(st.b) > 1 THEN UPDATE SET b = test.b || st.a::text;
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (a, b) VALUES (0, NULL);
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT VALUES (0, NULL); -- same as above
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (b, a) VALUES (NULL, 0);
MERGE INTO test USING test st ON (st.a = test.a)
WHEN NOT MATCHED THEN INSERT (a) VALUES (0);
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN DELETE;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN MATCHED THEN DO NOTHING;
MERGE INTO test USING test st ON (st.a = test.a AND st.a >= 4)
WHEN NOT MATCHED THEN DO NOTHING;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- INSERT, UPDATE, DELETE on test table to validate WAL generation metrics
--
SELECT pg_stat_statements_reset();
-- utility "create table" should not be shown
CREATE TABLE pgss_test (a int, b char(20));
INSERT INTO pgss_test VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_test SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_test WHERE a > 9;
-- DROP test table
DROP TABLE pgss_test;
-- Check WAL is generated for the above statements
SELECT query, calls, rows,
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";
--
-- queries with locking clauses
--
CREATE TABLE pgss_a (id integer PRIMARY KEY);
CREATE TABLE pgss_b (id integer PRIMARY KEY, a_id integer REFERENCES pgss_a);
SELECT pg_stat_statements_reset();
-- control query
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id;
-- test range tables
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a, pgss_b; -- matches plain "FOR UPDATE"
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a;
-- test strengths
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE;
-- test wait policies
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED;
SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C";
DROP TABLE pgss_a, pgss_b CASCADE;
--
-- Track user activity and reset them
--
SET pg_stat_statements.track_utility = TRUE;
SELECT pg_stat_statements_reset();
CREATE ROLE regress_stats_user1;
CREATE ROLE regress_stats_user2;
SET ROLE regress_stats_user1;
SELECT 1 AS "ONE";
SELECT 1+1 AS "TWO";
RESET ROLE;
SET ROLE regress_stats_user2;
SELECT 1 AS "ONE";
SELECT 1+1 AS "TWO";
RESET ROLE;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- Don't reset anything if any of the parameter is NULL
--
SELECT pg_stat_statements_reset(NULL);
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query ('SELECT $1+$2 AS "TWO"') executed by regress_stats_user2
-- in the current_database
--
SELECT pg_stat_statements_reset(
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user2'),
(SELECT d.oid FROM pg_database As d where datname = current_database()),
(SELECT s.queryid FROM pg_stat_statements AS s
WHERE s.query = 'SELECT $1+$2 AS "TWO"' LIMIT 1));
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query ('SELECT $1 AS "ONE"') executed by two users
--
SELECT pg_stat_statements_reset(0,0,s.queryid)
FROM pg_stat_statements AS s WHERE s.query = 'SELECT $1 AS "ONE"';
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query of a user (regress_stats_user1)
--
SELECT pg_stat_statements_reset(r.oid)
FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user1';
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- reset all
--
SELECT pg_stat_statements_reset(0,0,0);
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- cleanup
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;
--
-- access to pg_stat_statements_info view
--
SELECT pg_stat_statements_reset();
SELECT dealloc FROM pg_stat_statements_info;
-- FROM [ONLY]
CREATE TABLE tbl_inh(id integer);
CREATE TABLE tbl_inh_1() INHERITS (tbl_inh);
INSERT INTO tbl_inh_1 SELECT 1;
SELECT * FROM tbl_inh;
SELECT * FROM ONLY tbl_inh;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FROM%tbl_inh%';
-- WITH TIES
CREATE TABLE limitoption AS SELECT 0 AS val FROM generate_series(1, 10);
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROWS WITH TIES;
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROW ONLY;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FETCH FIRST%';
-- GROUP BY [DISTINCT]
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY DISTINCT ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%GROUP BY%ROLLUP%';
-- GROUPING SET agglevelsup
SELECT (
SELECT (
SELECT GROUPING(a,b) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
SELECT (
SELECT (
SELECT GROUPING(e,f) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%SELECT GROUPING%';

149
contrib/pg_stat_statements/sql/select.sql
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@ -0,0 +1,149 @@
--
-- SELECT statements
--
CREATE EXTENSION pg_stat_statements;
SET pg_stat_statements.track_utility = FALSE;
SET pg_stat_statements.track_planning = TRUE;
SELECT pg_stat_statements_reset();
--
-- simple and compound statements
--
SELECT 1 AS "int";
SELECT 'hello'
-- multiline
AS "text";
SELECT 'world' AS "text";
-- transaction
BEGIN;
SELECT 1 AS "int";
SELECT 'hello' AS "text";
COMMIT;
-- compound transaction
BEGIN \;
SELECT 2.0 AS "float" \;
SELECT 'world' AS "text" \;
COMMIT;
-- compound with empty statements and spurious leading spacing
\;\; SELECT 3 + 3 \;\;\; SELECT ' ' || ' !' \;\; SELECT 1 + 4 \;;
-- non ;-terminated statements
SELECT 1 + 1 + 1 AS "add" \gset
SELECT :add + 1 + 1 AS "add" \;
SELECT :add + 1 + 1 AS "add" \gset
-- set operator
SELECT 1 AS i UNION SELECT 2 ORDER BY i;
-- ? operator
select '{"a":1, "b":2}'::jsonb ? 'b';
-- cte
WITH t(f) AS (
VALUES (1.0), (2.0)
)
SELECT f FROM t ORDER BY f;
-- prepared statement with parameter
PREPARE pgss_test (int) AS SELECT $1, 'test' LIMIT 1;
EXECUTE pgss_test(1);
DEALLOCATE pgss_test;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
SELECT pg_stat_statements_reset();
--
-- queries with locking clauses
--
CREATE TABLE pgss_a (id integer PRIMARY KEY);
CREATE TABLE pgss_b (id integer PRIMARY KEY, a_id integer REFERENCES pgss_a);
SELECT pg_stat_statements_reset();
-- control query
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id;
-- test range tables
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_a, pgss_b; -- matches plain "FOR UPDATE"
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE OF pgss_b, pgss_a;
-- test strengths
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR NO KEY UPDATE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR SHARE;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR KEY SHARE;
-- test wait policies
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE NOWAIT;
SELECT * FROM pgss_a JOIN pgss_b ON pgss_b.a_id = pgss_a.id FOR UPDATE SKIP LOCKED;
SELECT calls, query FROM pg_stat_statements ORDER BY query COLLATE "C";
DROP TABLE pgss_a, pgss_b CASCADE;
--
-- access to pg_stat_statements_info view
--
SELECT pg_stat_statements_reset();
SELECT dealloc FROM pg_stat_statements_info;
-- FROM [ONLY]
CREATE TABLE tbl_inh(id integer);
CREATE TABLE tbl_inh_1() INHERITS (tbl_inh);
INSERT INTO tbl_inh_1 SELECT 1;
SELECT * FROM tbl_inh;
SELECT * FROM ONLY tbl_inh;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FROM%tbl_inh%';
-- WITH TIES
CREATE TABLE limitoption AS SELECT 0 AS val FROM generate_series(1, 10);
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROWS WITH TIES;
SELECT *
FROM limitoption
WHERE val < 2
ORDER BY val
FETCH FIRST 2 ROW ONLY;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%FETCH FIRST%';
-- GROUP BY [DISTINCT]
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
SELECT a, b, c
FROM (VALUES (1, 2, 3), (4, NULL, 6), (7, 8, 9)) AS t (a, b, c)
GROUP BY DISTINCT ROLLUP(a, b), rollup(a, c)
ORDER BY a, b, c;
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%GROUP BY%ROLLUP%';
-- GROUPING SET agglevelsup
SELECT (
SELECT (
SELECT GROUPING(a,b) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
SELECT (
SELECT (
SELECT GROUPING(e,f) FROM (VALUES (1)) v2(c)
) FROM (VALUES (1,2)) v1(a,b) GROUP BY (a,b)
) FROM (VALUES(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
SELECT COUNT(*) FROM pg_stat_statements WHERE query LIKE '%SELECT GROUPING%';
SELECT pg_stat_statements_reset();

65
contrib/pg_stat_statements/sql/user_activity.sql
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@ -0,0 +1,65 @@
--
-- Track user activity and reset them
--
SET pg_stat_statements.track_utility = TRUE;
SELECT pg_stat_statements_reset();
CREATE ROLE regress_stats_user1;
CREATE ROLE regress_stats_user2;
SET ROLE regress_stats_user1;
SELECT 1 AS "ONE";
SELECT 1+1 AS "TWO";
RESET ROLE;
SET ROLE regress_stats_user2;
SELECT 1 AS "ONE";
SELECT 1+1 AS "TWO";
RESET ROLE;
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- Don't reset anything if any of the parameter is NULL
--
SELECT pg_stat_statements_reset(NULL);
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query ('SELECT $1+$2 AS "TWO"') executed by regress_stats_user2
-- in the current_database
--
SELECT pg_stat_statements_reset(
(SELECT r.oid FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user2'),
(SELECT d.oid FROM pg_database As d where datname = current_database()),
(SELECT s.queryid FROM pg_stat_statements AS s
WHERE s.query = 'SELECT $1+$2 AS "TWO"' LIMIT 1));
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query ('SELECT $1 AS "ONE"') executed by two users
--
SELECT pg_stat_statements_reset(0,0,s.queryid)
FROM pg_stat_statements AS s WHERE s.query = 'SELECT $1 AS "ONE"';
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- remove query of a user (regress_stats_user1)
--
SELECT pg_stat_statements_reset(r.oid)
FROM pg_roles AS r WHERE r.rolname = 'regress_stats_user1';
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- reset all
--
SELECT pg_stat_statements_reset(0,0,0);
SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- cleanup
--
DROP ROLE regress_stats_user1;
DROP ROLE regress_stats_user2;

20
contrib/pg_stat_statements/sql/wal.sql
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@ -0,0 +1,20 @@
--
-- Validate WAL generation metrics
--
SET pg_stat_statements.track_utility = FALSE;
CREATE TABLE pgss_wal_tab (a int, b char(20));
INSERT INTO pgss_wal_tab VALUES(generate_series(1, 10), 'aaa');
UPDATE pgss_wal_tab SET b = 'bbb' WHERE a > 7;
DELETE FROM pgss_wal_tab WHERE a > 9;
DROP TABLE pgss_wal_tab;
-- Check WAL is generated for the above statements
SELECT query, calls, rows,
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";
SELECT pg_stat_statements_reset();
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