Re: potential integer overflow in md.c

Tom Lane wrote:
> Zdenek Kotala <Zdenek.Kotala@Sun.COM> writes:
>> I found following expression in md.c:
>>   seekpos = (long) (BLCKSZ * (blocknum % ((BlockNumber) RELSEG_SIZE)));
>
> There's no percentage in touching that code unless you intend to enable
> the non-segmented behavior; which will probably need more fixes than
> just this.

For non-segment code is following section:

  seekpos = (long) (BLCKSZ * (blocknum));

and FileSeek function also accept only 32bit offset.

        Zdenek