Using postgres functions in custom permissions check

Using postgres functions in custom permissions check #2944 - GitHub

Postgres functions generally are not supported, but as now() is a postgres literal, it works. But the issue is Hasura uses prepared statements.

How to check permissions to functions under psql console

For a simpler query, use: SELECT proacl FROM pg_proc WHERE proname='FUNCTION-NAME';. The results is like:

How To Use Roles and Manage Grant Permissions in PostgreSQL ...

Postgres manages permissions through the concept of roles. Roles are different from traditional Unix-style permissions in that there is no ...

Using Custom SQL functions for queries with Postgres and GraphQL

Access control permissions configured for the SETOF table of a function are also applicable to the function itself. How to query functions in GraphQL API. #.

Grant function execute to user in Postgres - permissions

There was lack of "argument data types" in brackets after function_name . Function name and arguments data types we can check that by \df ...

List the database privileges using psql - DBA Stack Exchange

Documentation: 17: CREATE FUNCTION - PostgreSQL

SECURITY INVOKER indicates that the function is to be executed with the privileges of the user that calls it. That is the default. SECURITY DEFINER specifies ...

How to Modify User Privileges in PostgreSQL Databases

... customize its data types, functions, and more. By default, PostgreSQL database clusters come with a user, doadmin , which has full access to every database ...

Documentation: 17: CREATE POLICY - PostgreSQL

A policy grants the permission to select, insert, update, or delete rows that match the relevant policy expression. Existing table rows are checked against the ...

PostgreSQL: Permission to execute function (that inserts into a table ...

You have to have another role, that has privileges to write directly to tables. Then you create the function using this another role, ...

Database Authorization — PostgREST 12.2 documentation

Another option is to define the function with the SECURITY DEFINER option. Then only one permission check will take place, the permission to call the function, ...

Postgres: Extend Schema with Custom SQL Functions - Hasura

A custom function f is only accessible to a role r if there is a function permission (see Create function permission) defined on the function f for the role r .

PostgreSQL Basics: Object Ownership and Default Privileges

Although there are many privileges that can be assigned in Postgres, object ownership comes with a specific level of privilege that cannot be ...

How to override PostgreSQL's now() function for testing? - Reddit

Is there a way to achieve this in PostgreSQL? I've looked into using SET and ALTER commands or creating custom functions, but there are tons ...

Custom Claims & Role-based Access Control (RBAC) - Supabase

The Custom Access Token Auth Hook runs before a token is issued. You can use it to edit the JWT. PL/pgSQL (best performance) JavaScript (PLV8).

Documentation: 17: 5.9. Row Security Policies - PostgreSQL

... functions can be used to access data not available to the calling user. ... The policy above implicitly provides a WITH CHECK clause identical to its USING ...

Except admin role, user role can't access and view postgresql ...

When the --infer-function-permissions flag is set to false, a function f, stable, immutable or volatile is only exposed for a role r if there is ...

PostgreSQL Basics: Roles and Privileges - Simple Talk

If your PostgreSQL database is hosted with a service such as AWS RDS or Azure Postgres, you will probably not have access to a superuser role.

Hasura Postgres Functions Guide — Restack

Hasura's integration with Postgres allows for the use of custom SQL functions ... Integrating Postgres Functions with Hasura Permissions. Integrating ...

Database Functions | Supabase Docs

Using Custom Postgres Roles · Managing secrets with Vault · Superuser Access and ... Value checking is common, so Postgres provides a shorthand: the assert ...