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From: Álvaro Herrera <[email protected]>
To: [email protected]
Subject: pgsql: Remove the query_id_squash_values GUC
Date: Thu, 27 Mar 2025 12:37:55 +0000
Message-ID: <[email protected]> (raw)

Remove the query_id_squash_values GUC

Commit 62d712ecfd94 introduced the capability to calculate the same
queryId for queries with different lengths of constants in a list for an
IN clause.  This behavior was originally enabled with a GUC
query_id_squash_values.  After a discussion about the value of such a
GUC, it was decided to back out of the use of a GUC and make the
squashing behavior the only available option.

Author: Sami Imseih <[email protected]>
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/CA+q6zcVTK-3C-8NWV1oY2NZrvtnMCDqnyYYyk1T7WMUG65MeOQ@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/9fbd53dea5d513a78ca04834101ca1aa73b63e59

Modified Files
--------------
contrib/pg_stat_statements/expected/dml.out       |  2 +-
contrib/pg_stat_statements/expected/squashing.out | 33 -----------------------
contrib/pg_stat_statements/sql/squashing.sql      | 10 -------
doc/src/sgml/config.sgml                          | 30 ---------------------
doc/src/sgml/pgstatstatements.sgml                |  6 ++---
src/backend/nodes/queryjumblefuncs.c              | 16 ++++-------
src/backend/postmaster/launch_backend.c           |  3 ---
src/backend/utils/misc/guc_tables.c               | 10 -------
src/backend/utils/misc/postgresql.conf.sample     |  1 -
src/include/nodes/queryjumble.h                   |  1 -
10 files changed, 8 insertions(+), 104 deletions(-)



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