On Wed, 30 Jan 2019 at 07:49, Jason W <js...@protonmail.com> wrote: > I have two postgresql accounts created by someone else who I do not know > (So I do not know setting for those accounts and tables created). One is > read only account e.g. read_only_user (This can perform select operations > only). The other is admin account e.g. admin_user (This can perform grant, > revoke, CRUD, and so on operations). > > The read only account can query (select sql) a table (suppose it's called > table1) under a specific schema (suppose it's schema1). For instance select > * from schema1.table1. Now I received a request to revoke select for that > read only account on table1. So I execute > > revoke select on schema1.table1 from read_only_user > > psql returns REVOKE string (or something similar showing the sql execution > was successful) on console. However, when check with read_only_user > account. I am still able to query table1. Searching the internet, [1] looks > like the closest to my problem. But I do not find solution in that thread. > > So my question: > What steps do I need to perform in order to exactly revoke select from > read only user account for a particular table? So the read only user > account wont' be able query that specific table with select permission > revoke (psql should returns info like permission denied). > > Thanks > > [1]. > https://www.postgresql.org/message-id/00ce01cbef04%24910606b0%24b3121410%24%40yahoo.com > > It is likely that permissions for the user are being granted via a role rather than granted directly to the user (think of a role as a user account which does not have the login permission). First thing to check would be to look at what roles have been granted to the read_only user and if one of those grants select on schema1.table1, revoke/remove it from the role. There may be other complications, such as roles which do a grant select on all tables in a schema, so getting the order of things correct is important. First step, understanding how permissions are granted, then you should be able to revoke them effectively.
Tim -- regards, Tim -- Tim Cross
