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|
-- Tests with extended query protocol
SET pg_stat_statements.track_utility = FALSE;
-- This test checks that an execute message sets a query ID.
SELECT query_id IS NOT NULL AS query_id_set
FROM pg_stat_activity WHERE pid = pg_backend_pid() \bind \g
query_id_set
--------------
t
(1 row)
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
SELECT $1 \parse stmt1
SELECT $1, $2 \parse stmt2
SELECT $1, $2, $3 \parse stmt3
SELECT $1 \bind 'unnamed_val1' \g
?column?
--------------
unnamed_val1
(1 row)
\bind_named stmt1 'stmt1_val1' \g
?column?
------------
stmt1_val1
(1 row)
\bind_named stmt2 'stmt2_val1' 'stmt2_val2' \g
?column? | ?column?
------------+------------
stmt2_val1 | stmt2_val2
(1 row)
\bind_named stmt3 'stmt3_val1' 'stmt3_val2' 'stmt3_val3' \g
?column? | ?column? | ?column?
------------+------------+------------
stmt3_val1 | stmt3_val2 | stmt3_val3
(1 row)
\bind_named stmt3 'stmt3_val4' 'stmt3_val5' 'stmt3_val6' \g
?column? | ?column? | ?column?
------------+------------+------------
stmt3_val4 | stmt3_val5 | stmt3_val6
(1 row)
\bind_named stmt2 'stmt2_val3' 'stmt2_val4' \g
?column? | ?column?
------------+------------
stmt2_val3 | stmt2_val4
(1 row)
\bind_named stmt1 'stmt1_val1' \g
?column?
------------
stmt1_val1
(1 row)
SELECT calls, rows, query FROM pg_stat_statements ORDER BY query COLLATE "C";
calls | rows | query
-------+------+----------------------------------------------------
3 | 3 | SELECT $1
2 | 2 | SELECT $1, $2
2 | 2 | SELECT $1, $2, $3
1 | 1 | SELECT pg_stat_statements_reset() IS NOT NULL AS t
(4 rows)
-- Various parameter numbering patterns
-- Unique query IDs with parameter numbers switched.
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
SELECT WHERE ($1::int, 7) IN ((8, $2::int), ($3::int, 9)) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE ($2::int, 10) IN ((11, $3::int), ($1::int, 12)) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $1::int IN ($2::int, $3::int) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $2::int IN ($3::int, $1::int) \bind '1' '2' '3' \g
--
(0 rows)
SELECT WHERE $3::int IN ($1::int, $2::int) \bind '1' '2' '3' \g
--
(0 rows)
SELECT query, calls FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls
--------------------------------------------------------------+-------
SELECT WHERE $1::int IN ($2 /*, ... */) | 1
SELECT WHERE $1::int IN ($2 /*, ... */) | 1
SELECT WHERE $1::int IN ($2 /*, ... */) | 1
SELECT WHERE ($1::int, $4) IN (($5, $2::int), ($3::int, $6)) | 1
SELECT WHERE ($2::int, $4) IN (($5, $3::int), ($1::int, $6)) | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1
(6 rows)
-- Two groups of two queries with the same query ID.
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
SELECT WHERE '1'::int IN ($1::int, '2'::int) \bind '1' \g
--
(1 row)
SELECT WHERE '4'::int IN ($1::int, '5'::int) \bind '2' \g
--
(0 rows)
SELECT WHERE $2::int IN ($1::int, '1'::int) \bind '1' '2' \g
--
(0 rows)
SELECT WHERE $2::int IN ($1::int, '2'::int) \bind '3' '4' \g
--
(0 rows)
SELECT query, calls FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls
----------------------------------------------------+-------
SELECT WHERE $1::int IN ($2 /*, ... */) | 2
SELECT WHERE $1::int IN ($2 /*, ... */) | 2
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1
(3 rows)
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
t
---
t
(1 row)
-- no squashable list, the parameters id's are kept as-is
SELECT WHERE $3 = $1 AND $2 = $4 \bind 1 2 1 2 \g
--
(1 row)
-- squashable list, so the parameter IDs will be re-assigned
SELECT WHERE 1 IN (1, 2, 3) AND $3 = $1 AND $2 = $4 \bind 1 2 1 2 \g
--
(1 row)
SELECT query, calls FROM pg_stat_statements ORDER BY query COLLATE "C";
query | calls
------------------------------------------------------------+-------
SELECT WHERE $1 IN ($2 /*, ... */) AND $3 = $4 AND $5 = $6 | 1
SELECT WHERE $3 = $1 AND $2 = $4 | 1
SELECT pg_stat_statements_reset() IS NOT NULL AS t | 1
(3 rows)
|
