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
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/c9a0dc34865f2f82d8e186f534d9b605afaa4d11
Modified Files
--------------
src/backend/commands/statscmds.c | 7 +++++++
src/test/regress/expected/stats_ext.out | 12 +++++++-----
src/test/regress/sql/stats_ext.sql | 12 +++++++-----
3 files changed, 21 insertions(+), 10 deletions(-)
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