postgresql/contrib/pg_stat_statements/sql
Michael Paquier 5d95219faa pg_stat_statements: Fix crash in list squashing with Vars
When IN/ANY clauses contain both constants and variable expressions, the
optimizer transforms them into separate structures: constants become
an array expression while variables become individual OR conditions.

This transformation was creating an overlap with the token locations,
causing pg_stat_statements query normalization to crash because it
could not calculate the amount of bytes remaining to write for the
normalized query.

This commit disables squashing for mixed IN list expressions when
constructing a scalar array op, by setting list_start and list_end
to -1 when both variables and non-variables are present.  Some
regression tests are added to PGSS to verify these patterns.

Author: Sami Imseih <samimseih@gmail.com>
Reviewed-by: Dmitry Dolgov <9erthalion6@gmail.com>
Discussion: https://postgr.es/m/CAA5RZ0ts9qiONnHjjHxPxtePs22GBo4d3jZ_s2BQC59AN7XbAA@mail.gmail.com
Backpatch-through: 18
2026-01-20 08:11:12 +09:00
..
cleanup.sql Refactor tests of pg_stat_statements for planning, utility and level tracking 2023-02-20 09:28:29 +09:00
cursors.sql Show sizes of FETCH queries as constants in pg_stat_statements 2025-07-02 08:39:25 +09:00
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 counters for generic and custom plans 2025-07-31 11:37:37 +09:00
parallel.sql pg_stat_statements: Add columns to track parallel worker activity 2024-10-09 08:30:45 +09:00
plancache.sql pg_stat_statements: Add counters for generic and custom plans 2025-07-31 11:37:37 +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 query jumbling with GROUP BY clauses 2026-01-14 08:44:12 +09:00
squashing.sql pg_stat_statements: Fix crash in list squashing with Vars 2026-01-20 08:11:12 +09:00
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