ObjPgSQL  Diff

		return [PGResult PG_resultWithResult: result];

	PQclear(result);
	return nil;
}

- (PGResult*)executeCommand: (OFString*)command
		 parameters: (OFArray*)parameters_
		 parameters: (id)parameter, ...
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	PGresult *result;
	const char **values;
	va_list args, args2;
	size_t argsCount;

	va_start(args, parameter);
	va_copy(args2, args);

	for (argsCount = 1; va_arg(args2, id) != nil; argsCount++);

	values = [self allocMemoryWithSize: sizeof(*values)
				     count: [parameters_ count]];
				     count: argsCount];
	@try {
		OFEnumerator *enumerator = [parameters_ objectEnumerator];
		size_t i = 0;
		id parameter;

		while ((parameter = [enumerator nextObject]) != nil) {
		do {
			if ([parameter isKindOfClass: [OFNull class]])
				values[i++] = NULL;
			else
				values[i++] = [parameter UTF8String];
		}
		} while ((parameter = va_arg(args, id)) != nil);

		result = PQexecParams(conn, [command UTF8String],
		    [parameters_ count], NULL, values, NULL, NULL, 0);
		    argsCount, NULL, values, NULL, NULL, 0);
	} @finally {
		[self freeMemory: values];
	}

	[pool release];

	if (PQresultStatus(result) == PGRES_FATAL_ERROR) {