On Fri, Mar 28, 2008 at 2:04 PM, ITAGAKI Takahiro
[EMAIL PROTECTED] wrote:
Gokulakannan Somasundaram [EMAIL PROTECTED] wrote:
I think the creation of minimal_tuple in the middle is a overhead which
can
be avoided by creating a mem-map and directly creating the minimal_tuple
in
the
Gokulakannan Somasundaram [EMAIL PROTECTED] wrote:
I think the creation of minimal_tuple in the middle is a overhead which can
be avoided by creating a mem-map and directly creating the minimal_tuple in
the mem-map.
Many implementations of mem-map disallow to extend the sizes.
Do you have
Hi,
I had a chance to go through the Hash join code of Postgresql and had the
following thoughts.
- Currently postgres takes the heaptuple from the slot and creates and
minimal_tuple and copies it into the temp file.
I think the creation of minimal_tuple in the middle is a overhead which can
