postgresql/contrib/pg_stat_statements/sql
Álvaro Herrera c2da1a5d63
Make query jumbling also squash PARAM_EXTERN params
Commit 62d712ecfd made query jumbling squash lists of Consts as a
single element, but there's no reason not to treat PARAM_EXTERN
parameters the same.  For these purposes, these values are indeed
constants for any particular execution of a query.

In particular, this should make list squashing more useful for
applications using extended query protocol, which would use parameters
extensively.

A complication arises: if a query has both external parameters and
squashable lists, then the parameter number used as placeholder for the
squashed list might be inconsistent with regards to the parameter
numbers used by the query literal.  To reduce the surprise factor, all
parameters are renumbered starting from 1 in that case.

Author: Sami Imseih <samimseih@gmail.com>
Author: Dmitry Dolgov <9erthalion6@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CAA5RZ0tRXoPG2y6bMgBCWNDt0Tn=unRerbzYM=oW0syi1=C1OA@mail.gmail.com
2025-06-24 19:36:32 +02:00
..
cleanup.sql Refactor tests of pg_stat_statements for planning, utility and level tracking 2023-02-20 09:28:29 +09:00
cursors.sql Add NOT NULL checking of pg_stat_statements_reset() in tests 2023-11-27 02:52:17 +02:00
dml.sql Add NOT NULL checking of pg_stat_statements_reset() in tests 2023-11-27 02:52:17 +02:00
entry_timestamp.sql Track statement entry timestamp in contrib/pg_stat_statements 2023-11-27 02:52:17 +02:00
extended.sql Make query jumbling also squash PARAM_EXTERN params 2025-06-24 19:36:32 +02:00
level_tracking.sql Fix regression with location calculation of nested statements 2025-05-21 10:22:12 +09:00
oldextversions.sql pg_stat_statements: Add columns to track parallel worker activity 2024-10-09 08:30:45 +09:00
parallel.sql pg_stat_statements: Add columns to track parallel worker activity 2024-10-09 08:30:45 +09:00
planning.sql Revert support for improved tracking of nested queries 2025-06-12 10:08:55 +09:00
privileges.sql pg_stat_statements: Add regression test for privilege handling. 2024-07-24 20:54:51 +09:00
select.sql Fix squashing algorithm for query texts 2025-06-12 14:21:21 +02:00
squashing.sql Make query jumbling also squash PARAM_EXTERN params 2025-06-24 19:36:32 +02:00
user_activity.sql Add NOT NULL checking of pg_stat_statements_reset() in tests 2023-11-27 02:52:17 +02:00
utility.sql pg_stat_statements: Expand tests for SET statements 2024-09-25 10:04:44 +09:00
wal.sql Add NOT NULL checking of pg_stat_statements_reset() in tests 2023-11-27 02:52:17 +02:00