Re: relation_byte_size()

Your patch has been added to the PostgreSQL unapplied patches list at:

http://momjian.postgresql.org/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

---------------------------------------------------------------------------

Sailesh Krishnamurthy wrote:
>
> Hackers
>
> Here is the definition of relation_byte_size() in optimizer/path/costsize.c:
>
> ----------------------------------------------------------------------
> /*
> * relation_byte_size
> * Estimate the storage space in bytes for a given number of tuples
> * of a given width (size in bytes).
> */
> static double
> relation_byte_size(double tuples, int width)
> {
> return tuples * (MAXALIGN(width) + MAXALIGN(sizeof(HeapTupleData)));
> }
>
> ----------------------------------------------------------------------
>
> Shouldn't this be HeapTupleHeaderData and not HeapTupleData ?
>
> (Of course, from a costing perspective these shouldn't be very different but ...)
>
> --
> Pip-pip
> Sailesh
> http://www.cs.berkeley.edu/~sailesh
>
>
>
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