SQLSTATE 0L000 ERROR Class 0L: Invalid Grantor

invalid_grantor Invalid Grantor — SQLSTATE 0L000

SQLSTATE 0L000 (invalid_grantor): The grantor or grant operation is invalid.

PG 12, 13, 14, 15, 16, 17, 18 Official docs
Last reviewed May 2025 Grounded in source

Symptoms

The server reports SQLSTATE 0L000 (invalid_grantor), a condition in the Invalid Grantor class.

  • The error is written to the server log and returned to the client carrying SQLSTATE 0L000.
  • Any driver (libpq, JDBC, psycopg, npgsql, pgx) surfaces this code in its error object so you can branch on it programmatically.
  • PL/pgSQL can trap it by name: EXCEPTION WHEN invalid_grantor THEN.

Environment

Severity: ERROR  |  PostgreSQL versions: 12, 13, 14, 15, 16, 17

Reproduce with the exact statement and read the full message in the server log (raise log_min_messages / set log_min_error_statement for more context).

Root Cause

0L000 belongs to Class 0L — Invalid Grantor. In this class, the grantor or grant operation is invalid.

The first two characters (0L) identify the error class, so application code can match the whole class via 0L000 when the specific code is not needed.

Diagnostic Queries

Recovery

Verify the granting role exists and holds the privilege WITH GRANT OPTION (admin option) before it can grant to others.

Reference: PostgreSQL error codes — Class 0L (Invalid Grantor).

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