Contents

• pg_set_acl
• Installation
  • Compiling
  • PostgreSQL setup
• Usage
• Example
  • grant
  • work_mem

pg_set_acl

PostgreSQL extension that implements a SET command access control list.

Installation

Compiling

This module can be built using the standard PGXS infrastructure. For this to work, the pg_config program must be available in your $PATH:

git clone https://github.com/pierreforstmann/pg_set_acl.git cd pg_set_acl make make install

This extension has been validated with PostgreSQL 10, 11, 12, 13 and 14.

PostgreSQL setup

Extension should be loaded at server level with shared_preload_libraries parameter: shared_preload_libraries='pg_set_acl' Extension must be created in each database with: create extension pg_set_acl;

Usage

pg_set_acl has no specific GUC setting. Note that installing pg_set_acl removes execution privilege on set_config function from PUBLIC.

Example

``` testdb=# \c testdb postgres You are now connected to database "testdb" as user "postgres". testdb=# create extension pg_set_acl; CREATE EXTENSION testdb=# \c testdb testuser; You are now connected to database "testdb" as user "testuser". testdb=> select * from set_acl.privs; privilege | parameter_name | user_name -----------+----------------+----------- (0 rows)

testdb=> set work_mem='1GB'; ERROR: pg_set_acl: permission denied for (work_mem,testuser) testdb=> \c testdb postgres You are now connected to database "testdb" as user "postgres". testdb=# select set_acl.grant('work_mem','testuser');

grant

t (1 row)

testdb=# \c testdb testuser; You are now connected to database "testdb" as user "testuser". testdb=> select * from set_acl.privs; privilege | parameter_name | user_name -----------+----------------+----------- SET | work_mem | testuser (1 row)

testdb=> set work_mem='1GB'; SET testdb=> show work_mem;

work_mem

1GB (1 row)

testdb=> ```