only if configure found it was safe to do so; do not assume const_cast
is available.

* minor doc updates

Marko Kreen

scripts.

Justin Clift

Some compilers are pickier about this than gcc is.

execution, so that it restarts correctly if query tree is used again.

from the config file, so that these changes will propagate to backends
started later.  Already-started backends continue to ignore changes
in these variables.

postmaster ... it should not be set in the postmaster itself.

upper limit on what we will believe from sysconf(_SC_OPEN_MAX).  The
default value is 1000, so that under ordinary conditions it won't
affect the behavior.  But on platforms where the kernel promises far
more than it can deliver, this can be used to prevent running out of
file descriptors.  See numerous past discussions, eg, pgsql-hackers
around 23-Dec-2000.

cleverer than it actually is ;-) Braces are good for you :-)

Gerhard HÌring

 1. gist__int_ops is now without lossy
 2. added sort entry in picksplit

Oleg Bartunov

flexible about the extension of the graphic files, allow for other formats
in print output.  (Generating these formats is not implemented yet.)

* HOLDER/HOLDERTAB rename to PROCLOCKLINK/PROCLOCKLINKTAG (Bruce)

Will return later.

rightmost on its tree level, we split 2/3 to the left and 1/3 to the
new right page, rather than the even split we use elsewhere.  The idea
is that when faced with a steadily increasing series of inserted keys
(such as sequence or timestamp values), we'll end up with a btree that's
about 2/3ds full not 1/2 full, which is much closer to the desired
steady-state load for a btree.  Per suggestion from Ann Harrison of
IBPhoenix.

	* HOLDER/HOLDERTAB rename to PROCLOCK/PROCLOCKTAG (Tom)

Didn't use PROCLOCKLINK because it made PROCLOCKLINKTAG too long.

pointers to data that will be changed by any later call to setlocale.
Must copy what they return to be sure we get the right answer.
Karel Zak, further tweaks by Tom Lane.

returns a string corresponding to the new setting, not the old,
therefore the previous patch was quite wrong.

SInvalLock.  GetSnapshotData(true) has to use exclusive lock, since
it sets MyProc->xmin.

per tuple memory context doesn't discard them.

Still need an update for horology-solaris-1947.out ...

existing lock manager and spinlocks: it understands exclusive vs shared
lock but has few other fancy features.  Replace most uses of spinlocks
with lightweight locks.  All remaining uses of spinlocks have very short
lock hold times (a few dozen instructions), so tweak spinlock backoff
code to work efficiently given this assumption.  All per my proposal on
pghackers 26-Sep-01.

two performance improvements.  I put an explanation of the
changes at

http://cs1.cs.nyu.edu/been/postgres-rtree.html

The performance improvements are quite significant.

All the changes are in the file src/backend/access/rtree/rtree.c

I was working with the 7.1.3 code.

I'm including the diff output as an attachment.

Kenneth Been

Marko Kreen