Error
Error Code:
2F003
PostgreSQL Error 2F003: Prohibited SQL Statement Attempted
Description
This error signifies that an SQL statement was executed within a routine, trigger, or function that is not permitted in its current context. It typically occurs when a function attempts an operation that violates security rules, transaction integrity, or its declared volatility.
Error Message
prohibited sql statement attempted
Known Causes
3 known causesRestricted Operations in Security Definer Functions
Security definer functions execute with elevated privileges, and PostgreSQL restricts certain operations (like transaction control or DDL) within them to prevent privilege escalation or unintended side effects.
Unsupported Statements in Trigger Functions
Trigger functions operate within strict transaction boundaries and have limitations on executing DDL or transaction control statements to maintain data integrity during DML operations.
Volatile Operations in Immutable/Stable Functions
Functions declared as IMMUTABLE or STABLE are expected not to modify the database or produce varying results. Attempting DML or DDL within such a function violates this declaration.
Solutions
3 solutions available1. Review and Modify Prohibited Statements easy
Identify and rewrite the SQL statement causing the error.
1
Examine the application code or client tool that generated the error. Identify the specific SQL statement that is being executed.
2
Consult PostgreSQL documentation or your specific configuration to understand why the statement is prohibited. Common reasons include security policies, restricted user roles, or specific server configurations.
3
Rewrite the SQL statement to achieve the same outcome without using the prohibited construct. For example, if a `TRUNCATE` statement is prohibited, consider using `DELETE FROM table_name;` instead, provided it meets your performance and transactional needs.
DELETE FROM your_table;4
Test the modified statement in a development or staging environment before deploying to production.
2. Adjust User Permissions and Roles medium
Ensure the user executing the statement has the necessary privileges.
1
Connect to your PostgreSQL database as a superuser or a user with sufficient privileges (e.g., `postgres`).
2
Identify the user role associated with the application or client that is encountering the error.
SELECT rolname FROM pg_roles WHERE oid = (SELECT usesysid FROM pg_user WHERE usename = 'your_application_user');3
Review the privileges granted to this role. The error often occurs when a role attempts to execute statements that are restricted for security reasons (e.g., DDL statements by non-superusers, or specific administrative commands).
4
Grant the necessary privileges to the role, or consider creating a new role with more appropriate permissions if the current role is too restrictive. Be cautious when granting broad privileges.
GRANT CREATE ON DATABASE your_database TO your_application_role;
-- Or for specific DML permissions:
GRANT INSERT, UPDATE, DELETE ON your_table TO your_application_role;5
If the prohibited statement is an administrative command that should only be run by trusted users, ensure only those users have the necessary role membership.
3. Review PostgreSQL Configuration Parameters advanced
Check `postgresql.conf` for parameters that might restrict certain SQL statements.
1
Locate your `postgresql.conf` file. The location varies depending on your operating system and PostgreSQL installation method.
2
Open `postgresql.conf` in a text editor.
3
Search for parameters that might be restricting SQL statements. While there isn't a single parameter directly named 'prohibited_sql_statement', certain configurations can lead to this error indirectly. For example, security-related extensions or specific session settings might be in play.
4
If you are using extensions like `pg_partman` or custom security modules, review their configurations for any statement restrictions.
5
If you suspect a specific parameter is causing the issue, temporarily disable it (if safe to do so) or adjust its value according to the PostgreSQL documentation. Remember to restart the PostgreSQL server for changes to take effect.
sudo systemctl restart postgresql6
If custom `pg_hba.conf` entries are involved, ensure they are not overly restrictive for the intended operations.