Re: Change work_mem for one user

Wenjun Che <wenjun(at)openfin(dot)co> writes:
> We are running pg 10.10 on AWS RDS. I want to increase work_mem for one
> user with following command:
> ALTER ROLE test_user SET work_mem TO '50 MB';
> After I run the command and log in as test_user, "show work_mem" still
> shows the default 4MB.

Hmm, works for me:

regression=# create user test_user;
CREATE ROLE
regression=# ALTER ROLE test_user SET work_mem TO '50 MB';
ALTER ROLE
regression=# show work_mem;
work_mem
----------
4MB
(1 row)

regression=# \c - test_user
You are now connected to database "regression" as user "test_user".
regression=> show work_mem;
work_mem
----------
50MB
(1 row)

Perhaps you also have a setting at the per-database level, or
per-user-and-database level? The latter would definitely override
a per-user setting; I don't recall offhand whether per-database
overrides per-user. Look into pg_db_role_setting to see what
there is.

regards, tom lane