Обсуждение: [BUGS] BUG #14590: something wrong when create extension in schema pg_catalog
[BUGS] BUG #14590: something wrong when create extension in schema pg_catalog
От
digoal@126.com
Дата:
The following bug has been logged on the website: Bug reference: 14590 Logged by: Zhou Digoal Email address: digoal@126.com PostgreSQL version: 9.6.2 Operating system: CentOS 6.x x64 Description: ``` cd $PGHOME/share/extension cp btree_gist--1.2.sql btree_gist--9.9.9.sql vi btree_gist--9.9.9.sql -- add this create type new_type as ( id int, c1 int ); ``` test ``` postgres=# create extension btree_gist with schema pg_catalog; CREATE EXTENSION postgres=# drop extension btree_gist ; DROP EXTENSION postgres=# \set VERBOSITY verbose postgres=# create extension btree_gist with schema pg_catalog version '9.9.9'; ERROR: 42501: permission denied to create "pg_catalog.new_type" DETAIL: System catalog modifications are currently disallowed. LOCATION: heap_create, heap.c:280 ``` but why can do this? ``` postgres=# create extension btree_gist version '9.9.9';; CREATE EXTENSION postgres=# alter extension btree_gist set schema pg_catalog; ALTER EXTENSION ``` and why can do this? ``` vi $PGDATA/postgresql.conf allow_system_table_mods=on pg_ctl restart -m fast postgres=# create extension btree_gist with schema pg_catalog version '9.9.9'; CREATE EXTENSION ``` table, composite type, seq ... in extension sql, so cann't create in pg_catalog? it's a bug? best regards digoal -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
digoal@126.com writes: > postgres=# create extension btree_gist with schema pg_catalog; I would say that that's neither a good idea nor a supported operation. If it happens to work in some cases, okay, but you're definitely taking risks of getting tripped up by the restrictions on pg_catalog... > ERROR: 42501: permission denied to create "pg_catalog.new_type" > DETAIL: System catalog modifications are currently disallowed. ... like that one. regards, tom lane -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs