postgresql/contrib/pg_stat_statements/expected/utility.out

--
-- Utility commands
--
-- These tests require track_utility to be enabled.
SET pg_stat_statements.track_utility = TRUE;
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Tables, indexes, triggers
CREATE TEMP TABLE tab_stats (a int, b char(20));
CREATE INDEX index_stats ON tab_stats(b, (b || 'data1'), (b || 'data2')) WHERE a > 0;
ALTER TABLE tab_stats ALTER COLUMN b set default 'a';
ALTER TABLE tab_stats ALTER COLUMN b TYPE text USING 'data' || b;
ALTER TABLE tab_stats ADD CONSTRAINT a_nonzero CHECK (a <> 0);
DROP TABLE tab_stats \;
DROP TABLE IF EXISTS tab_stats \;
-- This DROP query uses two different strings, still they count as one entry.
DROP TABLE IF EXISTS tab_stats \;
Drop Table If Exists tab_stats \;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
NOTICE:  table "tab_stats" does not exist, skipping
NOTICE:  table "tab_stats" does not exist, skipping
NOTICE:  table "tab_stats" does not exist, skipping
 calls | rows |                                        query                                         
-------+------+--------------------------------------------------------------------------------------
     1 |    0 | ALTER TABLE tab_stats ADD CONSTRAINT a_nonzero CHECK (a <> 0)
     1 |    0 | ALTER TABLE tab_stats ALTER COLUMN b TYPE text USING 'data' || b
     1 |    0 | ALTER TABLE tab_stats ALTER COLUMN b set default 'a'
     1 |    0 | CREATE INDEX index_stats ON tab_stats(b, (b || 'data1'), (b || 'data2')) WHERE a > 0
     1 |    0 | CREATE TEMP TABLE tab_stats (a int, b char(20))
     3 |    0 | DROP TABLE IF EXISTS tab_stats
     1 |    0 | DROP TABLE tab_stats
     1 |    1 | SELECT pg_stat_statements_reset()
(8 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Partitions
CREATE TABLE pt_stats (a int, b int) PARTITION BY range (a);
CREATE TABLE pt_stats1 (a int, b int);
ALTER TABLE pt_stats ATTACH PARTITION pt_stats1 FOR VALUES FROM (0) TO (100);
CREATE TABLE pt_stats2 PARTITION OF pt_stats FOR VALUES FROM (100) TO (200);
CREATE INDEX pt_stats_index ON ONLY pt_stats (a);
CREATE INDEX pt_stats2_index ON ONLY pt_stats2 (a);
ALTER INDEX pt_stats_index ATTACH PARTITION pt_stats2_index;
DROP TABLE pt_stats;
-- Views
CREATE VIEW view_stats AS SELECT 1::int AS a, 2::int AS b;
ALTER VIEW view_stats ALTER COLUMN a SET DEFAULT 2;
DROP VIEW view_stats;
-- Foreign tables
CREATE FOREIGN DATA WRAPPER wrapper_stats;
CREATE SERVER server_stats FOREIGN DATA WRAPPER wrapper_stats;
CREATE FOREIGN TABLE foreign_stats (a int) SERVER server_stats;
ALTER FOREIGN TABLE foreign_stats ADD COLUMN b integer DEFAULT 1;
ALTER FOREIGN TABLE foreign_stats ADD CONSTRAINT b_nonzero CHECK (b <> 0);
DROP FOREIGN TABLE foreign_stats;
DROP SERVER server_stats;
DROP FOREIGN DATA WRAPPER wrapper_stats;
-- Functions
CREATE FUNCTION func_stats(a text DEFAULT 'a_data', b text DEFAULT lower('b_data'))
  RETURNS text AS $$ SELECT $1::text || '_' || $2::text; $$ LANGUAGE SQL;
DROP FUNCTION func_stats;
-- Rules
CREATE TABLE tab_rule_stats (a int, b int);
CREATE TABLE tab_rule_stats_2 (a int, b int, c int, d int);
CREATE RULE rules_stats AS ON INSERT TO tab_rule_stats DO INSTEAD
  INSERT INTO tab_rule_stats_2 VALUES(new.*, 1, 2);
DROP RULE rules_stats ON tab_rule_stats;
DROP TABLE tab_rule_stats, tab_rule_stats_2;
-- Types
CREATE TYPE stats_type as (f1 numeric(35, 6), f2 numeric(35, 2));
DROP TYPE stats_type;
-- Triggers
CREATE TABLE trigger_tab_stats (a int, b int);
CREATE FUNCTION trigger_func_stats () RETURNS trigger LANGUAGE plpgsql
  AS $$ BEGIN return OLD; end; $$;
CREATE TRIGGER trigger_tab_stats
    AFTER UPDATE ON trigger_tab_stats
    FOR EACH ROW WHEN (OLD.a < 0 AND OLD.b < 1 AND true)
    EXECUTE FUNCTION trigger_func_stats();
DROP TABLE trigger_tab_stats;
-- Policies
CREATE TABLE tab_policy_stats (a int, b int);
CREATE POLICY policy_stats ON tab_policy_stats USING (a = 5) WITH CHECK (b < 5);
DROP TABLE tab_policy_stats;
-- Statistics
CREATE TABLE tab_expr_stats (a int, b int);
CREATE STATISTICS tab_expr_stats_1 (mcv) ON a, (2*a), (3*b) FROM tab_expr_stats;
DROP TABLE tab_expr_stats;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                                        query                                        
-------+------+-------------------------------------------------------------------------------------
     1 |    0 | ALTER FOREIGN TABLE foreign_stats ADD COLUMN b integer DEFAULT 1
     1 |    0 | ALTER FOREIGN TABLE foreign_stats ADD CONSTRAINT b_nonzero CHECK (b <> 0)
     1 |    0 | ALTER INDEX pt_stats_index ATTACH PARTITION pt_stats2_index
     1 |    0 | ALTER TABLE pt_stats ATTACH PARTITION pt_stats1 FOR VALUES FROM (0) TO (100)
     1 |    0 | ALTER VIEW view_stats ALTER COLUMN a SET DEFAULT 2
     1 |    0 | CREATE FOREIGN DATA WRAPPER wrapper_stats
     1 |    0 | CREATE FOREIGN TABLE foreign_stats (a int) SERVER server_stats
     1 |    0 | CREATE FUNCTION func_stats(a text DEFAULT 'a_data', b text DEFAULT lower('b_data'))+
       |      |   RETURNS text AS $$ SELECT $1::text || '_' || $2::text; $$ LANGUAGE SQL
     1 |    0 | CREATE FUNCTION trigger_func_stats () RETURNS trigger LANGUAGE plpgsql             +
       |      |   AS $$ BEGIN return OLD; end; $$
     1 |    0 | CREATE INDEX pt_stats2_index ON ONLY pt_stats2 (a)
     1 |    0 | CREATE INDEX pt_stats_index ON ONLY pt_stats (a)
     1 |    0 | CREATE POLICY policy_stats ON tab_policy_stats USING (a = 5) WITH CHECK (b < 5)
     1 |    0 | CREATE RULE rules_stats AS ON INSERT TO tab_rule_stats DO INSTEAD                  +
       |      |   INSERT INTO tab_rule_stats_2 VALUES(new.*, 1, 2)
     1 |    0 | CREATE SERVER server_stats FOREIGN DATA WRAPPER wrapper_stats
     1 |    0 | CREATE STATISTICS tab_expr_stats_1 (mcv) ON a, (2*a), (3*b) FROM tab_expr_stats
     1 |    0 | CREATE TABLE pt_stats (a int, b int) PARTITION BY range (a)
     1 |    0 | CREATE TABLE pt_stats1 (a int, b int)
     1 |    0 | CREATE TABLE pt_stats2 PARTITION OF pt_stats FOR VALUES FROM (100) TO (200)
     1 |    0 | CREATE TABLE tab_expr_stats (a int, b int)
     1 |    0 | CREATE TABLE tab_policy_stats (a int, b int)
     1 |    0 | CREATE TABLE tab_rule_stats (a int, b int)
     1 |    0 | CREATE TABLE tab_rule_stats_2 (a int, b int, c int, d int)
     1 |    0 | CREATE TABLE trigger_tab_stats (a int, b int)
     1 |    0 | CREATE TRIGGER trigger_tab_stats                                                   +
       |      |     AFTER UPDATE ON trigger_tab_stats                                              +
       |      |     FOR EACH ROW WHEN (OLD.a < 0 AND OLD.b < 1 AND true)                           +
       |      |     EXECUTE FUNCTION trigger_func_stats()
     1 |    0 | CREATE TYPE stats_type as (f1 numeric(35, 6), f2 numeric(35, 2))
     1 |    0 | CREATE VIEW view_stats AS SELECT 1::int AS a, 2::int AS b
     1 |    0 | DROP FOREIGN DATA WRAPPER wrapper_stats
     1 |    0 | DROP FOREIGN TABLE foreign_stats
     1 |    0 | DROP FUNCTION func_stats
     1 |    0 | DROP RULE rules_stats ON tab_rule_stats
     1 |    0 | DROP SERVER server_stats
     1 |    0 | DROP TABLE pt_stats
     1 |    0 | DROP TABLE tab_expr_stats
     1 |    0 | DROP TABLE tab_policy_stats
     1 |    0 | DROP TABLE tab_rule_stats, tab_rule_stats_2
     1 |    0 | DROP TABLE trigger_tab_stats
     1 |    0 | DROP TYPE stats_type
     1 |    0 | DROP VIEW view_stats
     1 |    1 | SELECT pg_stat_statements_reset()
(39 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Transaction statements
BEGIN;
ABORT;
BEGIN;
ROLLBACK;
-- WORK
BEGIN WORK;
COMMIT WORK;
BEGIN WORK;
ABORT WORK;
-- TRANSACTION
BEGIN TRANSACTION;
COMMIT TRANSACTION;
BEGIN TRANSACTION;
ABORT TRANSACTION;
-- More isolation levels
BEGIN TRANSACTION DEFERRABLE;
COMMIT TRANSACTION AND NO CHAIN;
BEGIN ISOLATION LEVEL SERIALIZABLE;
COMMIT;
BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
COMMIT;
-- List of A_Const nodes, same lists.
BEGIN TRANSACTION READ ONLY, READ WRITE, DEFERRABLE, NOT DEFERRABLE;
COMMIT;
BEGIN TRANSACTION NOT DEFERRABLE, READ ONLY, READ WRITE, DEFERRABLE;
COMMIT;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                                query                                
-------+------+---------------------------------------------------------------------
     4 |    0 | ABORT
     6 |    0 | BEGIN
     2 |    0 | BEGIN ISOLATION LEVEL SERIALIZABLE
     1 |    0 | BEGIN TRANSACTION DEFERRABLE
     1 |    0 | BEGIN TRANSACTION NOT DEFERRABLE, READ ONLY, READ WRITE, DEFERRABLE
     1 |    0 | BEGIN TRANSACTION READ ONLY, READ WRITE, DEFERRABLE, NOT DEFERRABLE
     7 |    0 | COMMIT WORK
     1 |    1 | SELECT pg_stat_statements_reset()
(8 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Two-phase transactions
BEGIN;
PREPARE TRANSACTION 'stat_trans1';
COMMIT PREPARED 'stat_trans1';
BEGIN;
PREPARE TRANSACTION 'stat_trans2';
ROLLBACK PREPARED 'stat_trans2';
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |               query               
-------+------+-----------------------------------
     2 |    0 | BEGIN
     1 |    0 | COMMIT PREPARED $1
     2 |    0 | PREPARE TRANSACTION $1
     1 |    0 | ROLLBACK PREPARED $1
     1 |    1 | SELECT pg_stat_statements_reset()
(5 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Savepoints
BEGIN;
SAVEPOINT sp1;
SAVEPOINT sp2;
SAVEPOINT sp3;
SAVEPOINT sp4;
ROLLBACK TO sp4;
ROLLBACK TO SAVEPOINT sp4;
ROLLBACK TRANSACTION TO SAVEPOINT sp3;
RELEASE sp3;
RELEASE SAVEPOINT sp2;
ROLLBACK TO sp1;
RELEASE SAVEPOINT sp1;
COMMIT;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |               query               
-------+------+-----------------------------------
     1 |    0 | BEGIN
     1 |    0 | COMMIT
     3 |    0 | RELEASE $1
     4 |    0 | ROLLBACK TO $1
     4 |    0 | SAVEPOINT $1
     1 |    1 | SELECT pg_stat_statements_reset()
(6 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- EXPLAIN statements
-- A Query is used, normalized by the query jumbling.
EXPLAIN (costs off) SELECT 1;
 QUERY PLAN 
------------
 Result
(1 row)

EXPLAIN (costs off) SELECT 2;
 QUERY PLAN 
------------
 Result
(1 row)

EXPLAIN (costs off) SELECT a FROM generate_series(1,10) AS tab(a) WHERE a = 3;
              QUERY PLAN              
--------------------------------------
 Function Scan on generate_series tab
   Filter: (a = 3)
(2 rows)

EXPLAIN (costs off) SELECT a FROM generate_series(1,10) AS tab(a) WHERE a = 7;
              QUERY PLAN              
--------------------------------------
 Function Scan on generate_series tab
   Filter: (a = 7)
(2 rows)

SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                                      query                                      
-------+------+---------------------------------------------------------------------------------
     2 |    0 | EXPLAIN (costs off) SELECT $1
     2 |    0 | EXPLAIN (costs off) SELECT a FROM generate_series($1,$2) AS tab(a) WHERE a = $3
     1 |    1 | SELECT pg_stat_statements_reset()
(3 rows)

-- CALL
CREATE OR REPLACE PROCEDURE sum_one(i int) AS $$
DECLARE
  r int;
BEGIN
  SELECT (i + i)::int INTO r;
END; $$ LANGUAGE plpgsql;
CREATE OR REPLACE PROCEDURE sum_two(i int, j int) AS $$
DECLARE
  r int;
BEGIN
  SELECT (i + j)::int INTO r;
END; $$ LANGUAGE plpgsql;
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

CALL sum_one(3);
CALL sum_one(199);
CALL sum_two(1,1);
CALL sum_two(1,2);
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |               query               
-------+------+-----------------------------------
     1 |    0 | CALL sum_one(199)
     1 |    0 | CALL sum_one(3)
     1 |    0 | CALL sum_two(1,1)
     1 |    0 | CALL sum_two(1,2)
     1 |    1 | SELECT pg_stat_statements_reset()
(5 rows)

-- COPY
CREATE TABLE copy_stats (a int, b int);
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Some queries with A_Const nodes.
COPY (SELECT 1) TO STDOUT;
1
COPY (SELECT 2) TO STDOUT;
2
COPY (INSERT INTO copy_stats VALUES (1, 1) RETURNING *) TO STDOUT;
1	1
COPY (INSERT INTO copy_stats VALUES (2, 2) RETURNING *) TO STDOUT;
2	2
COPY (UPDATE copy_stats SET b = b + 1 RETURNING *) TO STDOUT;
1	2
2	3
COPY (UPDATE copy_stats SET b = b + 2 RETURNING *) TO STDOUT;
1	4
2	5
COPY (DELETE FROM copy_stats WHERE a = 1 RETURNING *) TO STDOUT;
1	4
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                               query                               
-------+------+-------------------------------------------------------------------
     1 |    1 | COPY (DELETE FROM copy_stats WHERE a = 1 RETURNING *) TO STDOUT
     1 |    1 | COPY (INSERT INTO copy_stats VALUES (1, 1) RETURNING *) TO STDOUT
     1 |    1 | COPY (INSERT INTO copy_stats VALUES (2, 2) RETURNING *) TO STDOUT
     1 |    1 | COPY (SELECT 1) TO STDOUT
     1 |    1 | COPY (SELECT 2) TO STDOUT
     1 |    2 | COPY (UPDATE copy_stats SET b = b + 1 RETURNING *) TO STDOUT
     1 |    2 | COPY (UPDATE copy_stats SET b = b + 2 RETURNING *) TO STDOUT
     1 |    1 | SELECT pg_stat_statements_reset()
(8 rows)

DROP TABLE copy_stats;
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- CREATE TABLE AS
-- SELECT queries are normalized, creating matching query IDs.
CREATE TABLE ctas_stats_1 AS SELECT 1 AS a;
DROP TABLE ctas_stats_1;
CREATE TABLE ctas_stats_1 AS SELECT 2 AS a;
DROP TABLE ctas_stats_1;
CREATE TABLE ctas_stats_2 AS
  SELECT a AS col1, 2::int AS col2
    FROM generate_series(1, 10) AS tab(a) WHERE a < 5 AND a > 2;
DROP TABLE ctas_stats_2;
CREATE TABLE ctas_stats_2 AS
  SELECT a AS col1, 4::int AS col2
    FROM generate_series(1, 5) AS tab(a) WHERE a < 4 AND a > 1;
DROP TABLE ctas_stats_2;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                               query                                
-------+------+--------------------------------------------------------------------
     2 |    2 | CREATE TABLE ctas_stats_1 AS SELECT $1 AS a
     2 |    4 | CREATE TABLE ctas_stats_2 AS                                      +
       |      |   SELECT a AS col1, $1::int AS col2                               +
       |      |     FROM generate_series($2, $3) AS tab(a) WHERE a < $4 AND a > $5
     2 |    0 | DROP TABLE ctas_stats_1
     2 |    0 | DROP TABLE ctas_stats_2
     1 |    1 | SELECT pg_stat_statements_reset()
(5 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- CREATE MATERIALIZED VIEW
-- SELECT queries are normalized, creating matching query IDs.
CREATE MATERIALIZED VIEW matview_stats_1 AS
  SELECT a AS col1, 2::int AS col2
    FROM generate_series(1, 10) AS tab(a) WHERE a < 5 AND a > 2;
DROP MATERIALIZED VIEW matview_stats_1;
CREATE MATERIALIZED VIEW matview_stats_1 AS
  SELECT a AS col1, 4::int AS col2
    FROM generate_series(1, 5) AS tab(a) WHERE a < 4 AND a > 3;
DROP MATERIALIZED VIEW matview_stats_1;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                               query                                
-------+------+--------------------------------------------------------------------
     2 |    2 | CREATE MATERIALIZED VIEW matview_stats_1 AS                       +
       |      |   SELECT a AS col1, $1::int AS col2                               +
       |      |     FROM generate_series($2, $3) AS tab(a) WHERE a < $4 AND a > $5
     2 |    0 | DROP MATERIALIZED VIEW matview_stats_1
     1 |    1 | SELECT pg_stat_statements_reset()
(3 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- CREATE VIEW
CREATE VIEW view_stats_1 AS
  SELECT a AS col1, 2::int AS col2
    FROM generate_series(1, 10) AS tab(a) WHERE a < 5 AND a > 2;
DROP VIEW view_stats_1;
CREATE VIEW view_stats_1 AS
  SELECT a AS col1, 4::int AS col2
    FROM generate_series(1, 5) AS tab(a) WHERE a < 4 AND a > 3;
DROP VIEW view_stats_1;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                              query                              
-------+------+-----------------------------------------------------------------
     1 |    0 | CREATE VIEW view_stats_1 AS                                    +
       |      |   SELECT a AS col1, 2::int AS col2                             +
       |      |     FROM generate_series(1, 10) AS tab(a) WHERE a < 5 AND a > 2
     1 |    0 | CREATE VIEW view_stats_1 AS                                    +
       |      |   SELECT a AS col1, 4::int AS col2                             +
       |      |     FROM generate_series(1, 5) AS tab(a) WHERE a < 4 AND a > 3
     2 |    0 | DROP VIEW view_stats_1
     1 |    1 | SELECT pg_stat_statements_reset()
(4 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Domains
CREATE DOMAIN domain_stats AS int CHECK (VALUE > 0);
ALTER DOMAIN domain_stats SET DEFAULT '3';
ALTER DOMAIN domain_stats ADD CONSTRAINT higher_than_one CHECK (VALUE > 1);
DROP DOMAIN domain_stats;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                                   query                                    
-------+------+----------------------------------------------------------------------------
     1 |    0 | ALTER DOMAIN domain_stats ADD CONSTRAINT higher_than_one CHECK (VALUE > 1)
     1 |    0 | ALTER DOMAIN domain_stats SET DEFAULT '3'
     1 |    0 | CREATE DOMAIN domain_stats AS int CHECK (VALUE > 0)
     1 |    0 | DROP DOMAIN domain_stats
     1 |    1 | SELECT pg_stat_statements_reset()
(5 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- Execution statements
SELECT 1 as a;
 a 
---
 1
(1 row)

PREPARE stat_select AS SELECT $1 AS a;
EXECUTE stat_select (1);
 a 
---
 1
(1 row)

DEALLOCATE stat_select;
PREPARE stat_select AS SELECT $1 AS a;
EXECUTE stat_select (2);
 a 
---
 2
(1 row)

DEALLOCATE PREPARE stat_select;
DEALLOCATE ALL;
DEALLOCATE PREPARE ALL;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                 query                 
-------+------+---------------------------------------
     2 |    0 | DEALLOCATE $1
     2 |    0 | DEALLOCATE ALL
     2 |    2 | PREPARE stat_select AS SELECT $1 AS a
     1 |    1 | SELECT $1 as a
     1 |    1 | SELECT pg_stat_statements_reset()
(5 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- SET statements.
-- These use two different strings, still they count as one entry.
SET work_mem = '1MB';
Set work_mem = '1MB';
SET work_mem = '2MB';
RESET work_mem;
SET enable_seqscan = off;
SET enable_seqscan = on;
RESET enable_seqscan;
-- SET TRANSACTION ISOLATION
BEGIN;
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
COMMIT;
-- SET SESSION CHARACTERISTICS
SET SESSION SESSION AUTHORIZATION DEFAULT;
RESET SESSION AUTHORIZATION;
BEGIN;
SET LOCAL SESSION AUTHORIZATION DEFAULT;
RESET SESSION AUTHORIZATION;
COMMIT;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                      query                      
-------+------+-------------------------------------------------
     2 |    0 | BEGIN
     2 |    0 | COMMIT
     2 |    0 | RESET SESSION AUTHORIZATION
     1 |    0 | RESET enable_seqscan
     1 |    0 | RESET work_mem
     1 |    1 | SELECT pg_stat_statements_reset()
     1 |    0 | SET LOCAL SESSION AUTHORIZATION DEFAULT
     1 |    0 | SET SESSION SESSION AUTHORIZATION DEFAULT
     1 |    0 | SET TRANSACTION ISOLATION LEVEL READ COMMITTED
     1 |    0 | SET TRANSACTION ISOLATION LEVEL REPEATABLE READ
     1 |    0 | SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
     1 |    0 | SET enable_seqscan = off
     1 |    0 | SET enable_seqscan = on
     2 |    0 | SET work_mem = '1MB'
     1 |    0 | SET work_mem = '2MB'
(15 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

--
-- Track the total number of rows retrieved or affected by the utility
-- commands of COPY, FETCH, CREATE TABLE AS, CREATE MATERIALIZED VIEW,
-- REFRESH MATERIALIZED VIEW and SELECT INTO
--
CREATE TABLE pgss_ctas AS SELECT a, 'ctas' b FROM generate_series(1, 10) a;
SELECT generate_series(1, 10) c INTO pgss_select_into;
COPY pgss_ctas (a, b) FROM STDIN;
CREATE MATERIALIZED VIEW pgss_matv AS SELECT * FROM pgss_ctas;
REFRESH MATERIALIZED VIEW pgss_matv;
BEGIN;
DECLARE pgss_cursor CURSOR FOR SELECT * FROM pgss_matv;
FETCH NEXT pgss_cursor;
 a |  b   
---+------
 1 | ctas
(1 row)

FETCH FORWARD 5 pgss_cursor;
 a |  b   
---+------
 2 | ctas
 3 | ctas
 4 | ctas
 5 | ctas
 6 | ctas
(5 rows)

FETCH FORWARD ALL pgss_cursor;
 a  |  b   
----+------
  7 | ctas
  8 | ctas
  9 | ctas
 10 | ctas
 11 | copy
 12 | copy
 13 | copy
(7 rows)

COMMIT;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |                                  query                                  
-------+------+-------------------------------------------------------------------------
     1 |    0 | BEGIN
     1 |    0 | COMMIT
     1 |    3 | COPY pgss_ctas (a, b) FROM STDIN
     1 |   13 | CREATE MATERIALIZED VIEW pgss_matv AS SELECT * FROM pgss_ctas
     1 |   10 | CREATE TABLE pgss_ctas AS SELECT a, $1 b FROM generate_series($2, $3) a
     1 |    0 | DECLARE pgss_cursor CURSOR FOR SELECT * FROM pgss_matv
     1 |    5 | FETCH FORWARD 5 pgss_cursor
     1 |    7 | FETCH FORWARD ALL pgss_cursor
     1 |    1 | FETCH NEXT pgss_cursor
     1 |   13 | REFRESH MATERIALIZED VIEW pgss_matv
     1 |   10 | SELECT generate_series($1, $2) c INTO pgss_select_into
     1 |    1 | SELECT pg_stat_statements_reset()
(12 rows)

DROP MATERIALIZED VIEW pgss_matv;
DROP TABLE pgss_ctas;
DROP TABLE pgss_select_into;
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

-- SET statements.
-- These use two different strings, still they count as one entry.
SET work_mem = '1MB';
Set work_mem = '1MB';
SET work_mem = '2MB';
RESET work_mem;
SET enable_seqscan = off;
SET enable_seqscan = on;
RESET enable_seqscan;
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
 calls | rows |               query               
-------+------+-----------------------------------
     1 |    0 | RESET enable_seqscan
     1 |    0 | RESET work_mem
     1 |    1 | SELECT pg_stat_statements_reset()
     1 |    0 | SET enable_seqscan = off
     1 |    0 | SET enable_seqscan = on
     2 |    0 | SET work_mem = '1MB'
     1 |    0 | SET work_mem = '2MB'
(7 rows)

SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)