Michael Paquier 3357471cf9 pg_stat_statements: Add counters for generic and custom plans
This patch adds two new counters to pg_stat_statements:
- generic_plan_calls
- custom_plan_calls

These counters track how many times a prepared statement was executed
using a generic or custom plan, respectively, providing a global
equivalent at query level, for top and non-top levels, of
pg_prepared_statements whose data is restricted to a single session.

This commit builds upon e125e360020a.  The module is bumped to version
1.13.  PGSS_FILE_HEADER is bumped as well, something that the latest
patches touching the on-disk format of the PGSS file did not actually
bother with since 2022..

Author: Sami Imseih <samimseih@gmail.com>
Reviewed-by: Ilia Evdokimov <ilya.evdokimov@tantorlabs.com>
Reviewed-by: Andrei Lepikhov <lepihov@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Nikolay Samokhvalov <nik@postgres.ai>
Discussion: https://postgr.es/m/CAA5RZ0uFw8Y9GCFvafhC=OA8NnMqVZyzXPfv_EePOt+iv1T-qQ@mail.gmail.com
2025-07-31 11:37:37 +09:00

72 lines
2.8 KiB
SQL

-- test old extension version entry points
CREATE EXTENSION pg_stat_statements WITH VERSION '1.4';
-- Execution of pg_stat_statements_reset() is granted only to
-- superusers in 1.4, so this fails.
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
RESET SESSION AUTHORIZATION;
AlTER EXTENSION pg_stat_statements UPDATE TO '1.5';
-- Execution of pg_stat_statements_reset() should be granted to
-- pg_read_all_stats now, so this works.
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
RESET SESSION AUTHORIZATION;
-- In 1.6, it got restricted back to superusers.
AlTER EXTENSION pg_stat_statements UPDATE TO '1.6';
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
RESET SESSION AUTHORIZATION;
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
-- New function for pg_stat_statements_reset introduced, still
-- restricted for non-superusers.
AlTER EXTENSION pg_stat_statements UPDATE TO '1.7';
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
RESET SESSION AUTHORIZATION;
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
SELECT pg_stat_statements_reset();
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New functions and views for pg_stat_statements in 1.8
AlTER EXTENSION pg_stat_statements UPDATE TO '1.8';
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New function pg_stat_statement_info, and new function
-- and view for pg_stat_statements introduced in 1.9
AlTER EXTENSION pg_stat_statements UPDATE TO '1.9';
SELECT pg_get_functiondef('pg_stat_statements_info'::regproc);
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New functions and views for pg_stat_statements in 1.10
AlTER EXTENSION pg_stat_statements UPDATE TO '1.10';
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New functions and views for pg_stat_statements in 1.11
AlTER EXTENSION pg_stat_statements UPDATE TO '1.11';
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New parameter minmax_only of pg_stat_statements_reset function
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
SELECT pg_stat_statements_reset() IS NOT NULL AS t;
-- New functions and views for pg_stat_statements in 1.12
AlTER EXTENSION pg_stat_statements UPDATE TO '1.12';
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
-- New functions and views for pg_stat_statements in 1.13
AlTER EXTENSION pg_stat_statements UPDATE TO '1.13';
\d pg_stat_statements
SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
DROP EXTENSION pg_stat_statements;