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