vacuums.  This allows a OLTP-like system with big tables to continue
regular vacuuming on small-but-frequently-updated tables while the
big tables are being vacuumed.

Original patch from Hannu Krossing, rewritten by Tom Lane and updated
by me.

> * Consider detoasting keys before sorting

because they are used for testing the return value from system().
(WIN32 doesn't overlay the return code with other failure conditions
like Unix does, so they are just simple macros.)

Fix regression checks to properly handle diff failures on Win32 using
the new macros.

prevent multiplexing Windows kernel event objects we listen for across various sockets - should fix the occasional stats test regression failures we see.

> * Add column to pg_stat_activity that shows the progress of long-running
>   commands like CREATE INDEX and VACUUM

Hiroshi Saito

> * Add support for SQL-standard GENERATED/IDENTITY columns
>
>   http://archives.postgresql.org/pgsql-hackers/2006-07/msg00543.php

pg-specific code in those files, or might be some day.

it's handled just about like timezone; in particular, don't try
to read anything during InitializeGUCOptions.  Should solve current
startup failure on Windows, and avoid wasted cycles if a nondefault
setting is specified in postgresql.conf too.  Possibly we need to
think about a more general solution for handling 'expensive to set'
GUC options.

discussion in hackers list.  Also enhance predefined benchmark
scenarios to reflect the scaling factor parameter flexibly.

> * Allow DISTINCT to work in multiple-argument aggregate calls
< 	o Allow UPDATE to handle complex aggregates [update]?

the float8 versions of the aggregates, which is all that the standard requires.
Sergey's original patch also provided versions using numeric arithmetic,
but given the size and slowness of the code, I doubt we ought to include
those in core.

server-side character set.

< * Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp> of Software Research Assoc.
> * Tatsuo is Tatsuo Ishii <ishii@sraoss.co.jp> of SRA OSS, Inc. Japan

Connection identifier has to be unique

	- SHOW statement puts result into a variable
	- COPY TO STDOUT works

>
>           A subselect can also be used as the value source.

update regression expected files to what I think is correct.

the opportunity to treat COUNT(*) as a zero-argument aggregate instead
of the old hack that equated it to COUNT(1); this is materially cleaner
(no more weird ANYOID cases) and ought to be at least a tiny bit faster.
Original patch by Sergey Koposov; review, documentation, simple regression
tests, pg_dump and psql support by moi.

with restrictive permissions, which was not the behavior of the shell
script and doesn't seem very desirable.  Use the umask setting instead.

Albe Laurenz

eliminate unnecessary code, force initdb because stored rules change
(limit nodes are now supposed to be int8 not int4 expressions).
Update comments and error messages, which still all said 'integer'.

< 	  o Allow point-in-time recovery to archive partially filled
< 	    write-ahead logs? [pitr]
> 	  o Add command to archive partially filled write-ahead logs? [pitr]
< 	    of a disk failure. This could be triggered by a user command or
< 	    a timer.
> 	    of a disk failure.
< 	    recovery.  A function call to do this would also be useful.
> 	    recovery.
> 	  o Add reporting of the current WAL file and offset, perhaps as
> 	    part of partial log file archiving
>
> 	    The offset allows parts of a WAL file to be archived using
> 	    an external program.
>
< 	  o Add reporting of the current WAL file and offset, perhaps as
< 	    part of partial log file archiving
<
< 	    The offset allows parts of a WAL file to be archived using
< 	    an external program.

William ZHANG

not "unset".  An "unset" state doesn't really exist; all variables behave
like an empty string value if the string being pointed to has not been
initialized.

upcoming units feature.

- predefined variable "tps"
  The value of variable tps is taken from the scaling factor
  specified by -s option.

- -D option
  Variable values can be defined by -D option.

- \set command now allows arithmetic calculations.