postgres/contrib/pg_stat_statements/sql/extended.sql

-- 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

-- Various parameter numbering patterns
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
-- Unique query IDs with parameter numbers switched.
SELECT WHERE ($1::int, 7) IN ((8, $2::int), ($3::int, 9)) \bind '1' '2' '3' \g
SELECT WHERE ($2::int, 10) IN ((11, $3::int), ($1::int, 12)) \bind '1' '2' '3' \g
SELECT WHERE $1::int IN ($2::int, $3::int) \bind '1' '2' '3' \g
SELECT WHERE $2::int IN ($3::int, $1::int) \bind '1' '2' '3' \g
SELECT WHERE $3::int IN ($1::int, $2::int) \bind '1' '2' '3' \g
-- Two groups of two queries with the same query ID.
SELECT WHERE '1'::int IN ($1::int, '2'::int) \bind '1' \g
SELECT WHERE '4'::int IN ($1::int, '5'::int) \bind '2' \g
SELECT WHERE $2::int IN ($1::int, '1'::int) \bind '1' '2' \g
SELECT WHERE $2::int IN ($1::int, '2'::int) \bind '3' '4' \g

SELECT query, calls FROM pg_stat_statements ORDER BY query COLLATE "C";