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(parent: 4823621) | 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 22:31:22 +0000 (23:31 +0100)
commitc9a0dc34865f2f82d8e186f534d9b605afaa4d11
tree6e5f79407516b510de96762df6c501cc6a4af004tree
parent4823621db312a0597c40686c4c94d47428889fefcommit | 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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