Function TableCommandResultHandler

src/fe_utils/parallel_slot.c:508–533

* TableCommandResultHandler * * ParallelSlotResultHandler for results of commands (not queries) against * tables. * * Requires that the result status is either PGRES_COMMAND_OK or an error about * a missing table. This is useful for utilities that compile a list of tables * to process and then run commands (vacuum, reindex, or whatever) against * those tables, as there is a race condition

 * context: unused
 */
bool
TableCommandResultHandler(PGresult *res, PGconn *conn, void *context)
{
	Assert(res != NULL);
	Assert(conn != NULL);

	/*
	 * If it's an error, report it.  Errors about a missing table are harmless
	 * so we continue processing; but die for other errors.
	 */
	if (PQresultStatus(res) != PGRES_COMMAND_OK)
	{
		char	   *sqlState = PQresultErrorField(res, PG_DIAG_SQLSTATE);

		pg_log_error("processing of database \"%s\" failed: %s",
					 PQdb(conn), PQerrorMessage(conn));

		if (sqlState && strcmp(sqlState, ERRCODE_UNDEFINED_TABLE) != 0)
		{
			PQclear(res);
			return false;
		}
	}

	return true;
}