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