- Fixed several bugs concerning arrays of structs including a memory
  allocation bug.

machines.  I have just been observing some scenarios where set_ps_display
accounts for more than 10% of the backend CPU, and this loop has to be
the reason.

Thanks to Greg Sabino Mullane <greg@turnstep.com> for finding the problem.

 during the CVS update, leaving locks and bad files).

* Fix contrib/dbase to not require libiconv

only a partial solution but a step in the right direction.

Add a NetBSD/alpha and update info on a few other platforms.

 Makefile.custom, to allow finding it on Mandrake systems (at least).

Per report from Christopher Kings-Lynne.

prevents embarassments such as having the table dropped or truncated
partway through the scan.  Also, fix free space calculation to include
pages that currently contain no tuples.

do not use the undo pointer anyway.  This is a quick-hack solution for
the three-way deadlock condition discussed in pghackers 17-Dec-01.
Need to find a better way of doing it.

if presented with a tuple in process of being moved by VACUUM.  Per
bug report from Brian Hirt.