PostgresDB 42501: Insufficient privilege

When a user lacks the necessary permissions to perform an action.
  1. Identify the failed operation (e.g., SELECT, INSERT, UPDATE, DELETE) and the specific object (table, schema) involved by reviewing the application logs or the error message context.
  2. Confirm your current role and its privileges with:
  3. SELECT current_user;
    SHOW is_superuser;
    SELECT * FROM information_schema.role_table_grants WHERE grantee = current_user;
  4. Check specific object privileges with:
    • For a table:
    • SELECT grantee, privilege_type
      FROM information_schema.table_privileges
      WHERE table_name = 'your_table_name';
    • For a schema:
    • SELECT grantee, privilege_type
      FROM information_schema.schema_privileges
      WHERE schema_name = 'your_schema_name';
  5. If the required privilege is missing, attempt to grant it (if you have the necessary permissions). For example, to grant SELECT on a table:
  6. GRANT SELECT ON your_table_name TO your_role_name;
  7. Replace SELECT with the needed privilege (e.g., INSERT, UPDATE, DELETE) and adjust your_table_name and your_role_name as necessary.
  8. If you do not have permission to grant privileges, contact someone who does, like a superuser or a role with GRANT OPTION on the object.

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