Horton

Remove the query_id_squash_values GUC

Álvaro Herrera <alvherre@alvh.no-ip.org>

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Commit: 9fbd53dea5d513a78ca04834101ca1aa73b63e59
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2025-03-27T12:33:37Z
Releases: 18.0 
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 <samimseih@gmail.com>
Discussion: https://postgr.es/m/Z-LZyygkkNyA8-kR@msg.df7cb.de
Discussion: https://postgr.es/m/CA+q6zcVTK-3C-8NWV1oY2NZrvtnMCDqnyYYyk1T7WMUG65MeOQ@mail.gmail.com

Files

PathChange+/−
contrib/pg_stat_statements/expected/dml.out modified +1 −1
contrib/pg_stat_statements/expected/squashing.out modified +0 −33
contrib/pg_stat_statements/sql/squashing.sql modified +0 −10
doc/src/sgml/config.sgml modified +0 −30
doc/src/sgml/pgstatstatements.sgml modified +2 −4
src/backend/nodes/queryjumblefuncs.c modified +5 −11
src/backend/postmaster/launch_backend.c modified +0 −3
src/backend/utils/misc/guc_tables.c modified +0 −10
src/backend/utils/misc/postgresql.conf.sample modified +0 −1
src/include/nodes/queryjumble.h modified +0 −1

Documentation touched

Discussion