I wrote:
> That number is the total space actually requested from malloc() for
> the PGresult object. But we request space in blocks (typically 2KB
> each), so there's some overhead due to fields not exactly filling
> a block, unused space in the last block, etc. If you're testing
> with very small result sets (say a couple hundred KB)
Sigh, obviously I meant a couple hundred *bytes* there. -ENOCAFFEINE
regards, tom lane