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(parent: 5fa060c) | patch
Disallow CREATE STATISTICS on system catalogs
authorTomas Vondra <tomas.vondra@postgresql.org>
Fri, 15 Jan 2021 22:24:19 +0000 (23:24 +0100)
committerTomas Vondra <tomas.vondra@postgresql.org>
Fri, 15 Jan 2021 22:34:02 +0000 (23:34 +0100)
commitc22539756ee5492547badc821023e7fdf4bee4ef
treeb8c3cde87e2d7ec4eb6d4587851f19f79e5416c3tree | snapshot
parent5fa060c8f5937d304d9e966486d3750278ef3175commit | diff
Disallow CREATE STATISTICS on system catalogs

Add a check that CREATE STATISTICS does not add extended statistics on
system catalogs, similarly to indexes etc.  It can be overriden using
the allow_system_table_mods GUC.

This bug exists since 7b504eb282c, adding the extended statistics, so
backpatch all the way back to PostgreSQL 10.

Author: Tomas Vondra
Reported-by: Dean Rasheed
Backpatch-through: 10
Discussion: https://postgr.es/m/CAEZATCXAPrrOKwEsyZKQ4uzzJQWBCt6QAvOcgqRGdWwT1zb%2BrQ%40mail.gmail.com
src/backend/commands/statscmds.c diff | blob | blame | history
src/test/regress/expected/stats_ext.out diff | blob | blame | history
src/test/regress/sql/stats_ext.sql diff | blob | blame | history
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