minute and a half to decode a 500Kb on a fairly fast machine. I think the
culprit is sscanf.

I attach a patch that replaces the function with one used to perform the same
task in pyPgSQL (a Python interface to PostgreSQL). This code was written by
Billy Allie, author of pyPgSQL. I've changed a few variable names to match
those in the original code and removed a bit of Pythonness.

Billy has kindly looked at the code and points out that it is slightly
stricter than the original implementation and if it encounters an invalid
bytea such as '\12C' it drops the unescape '\' and outputs '12C'.

The code is licensed by the author under a BSD license.

I've performed limited testing of the function by putting JPEGs into
PostgreSQL, extracting them using them using the new function and diffing
against the original files.

The new function is significantly faster on my machine with the JPEGs being
decoded in less than a second. I attach a modified libpq example program that
I used for my testing.

Ben Lamb.

least-recently-used strategy from clog.c into slru.c.  It doesn't
change any visible behaviour and passes all regression tests plus a
TruncateCLOG test done manually.

Apart from refactoring I made a little change to SlruRecentlyUsed,
formerly ClogRecentlyUsed:  It now skips incrementing lru_counts, if
slotno is already the LRU slot, thus saving a few CPU cycles.  To make
this work, lru_counts are initialised to 1 in SimpleLruInit.

SimpleLru will be used by pg_subtrans (part of the nested transactions
project), so the main purpose of this patch is to avoid future code
duplication.

Manfred Koizar

Nigel J. Andrews

* -Add config variable to prevent auto-adding missing FROM-clause tables

USERLIMIT patch.

1 intarray: bugfix for int[]-int[] operation
2 intarray: split _int.c to several files (_int.c now is unused)
3 ntarray (gist__intbig_ops opclass): use special type for index storage
4 ltree (gist__ltree_ops opclass), intarray (gist__intbig_ops): optimize
GiST's
penalty and picksplit interface functions, now use Hemming distance.

Teodor Sigaev

Christopher Kings-Lynne

not all SQL identifiers taken from command line arguments.  We decided
years ago that that was a bad idea: identifiers taken from the command
line should be treated as literally correct.  Remove the inconsistent
code that has crept in recently.  Also fix pg_dump so that the combination
of --schema and --table does what you'd expect, namely dump exactly one
table from exactly one schema.  Per gripe from Deepak Bhole of Red Hat.

some reading on the subject.

1) PostgreSQL uses ephemeral keying, for its connections (good thing)

2) PostgreSQL doesn't set the cipher list that it allows (bad thing,
   fixed)

3) PostgreSQL's renegotiation code wasn't text book correct (could be
   bad, fixed)

4) The rate of renegotiating was insanely low (as Tom pointed out, set
   to a more reasonable level)

I haven't checked around much to see if there are any other SSL bits
that need some review, but I'm doing some OpenSSL work right now
and'll send patches for improvements along the way (if I find them).
At the very least, the changes in this patch will make security folks
happier for sure.  The constant renegotiation of sessions was likely a
boon to systems that had bad entropy gathering means (read: Slowaris
/dev/rand|/dev/urand != ANDIrand).  The new limit for renegotiations
is 512MB which should be much more reasonable.

Sean Chittenden

I'd placed the check for newly created matching pk rows for on update no
action earlier than it needed to be so that it'd check even when the key
values hadn't changed.  This patch moves it to after checking for NULLs
in the old row and comparing the values since the select's probably more
expensive.

Stephan Szabo

src/include/optimizer/cost.h.

This is required to compile the PostGIS extension module with Cygwin
http://postgis.refractions.net

Norman Vine

Fixed counting bug in parsing "->" operator.
Removed that silly debugging function I accidently committed last night.

name.

Document why certain GUC variables aren't in postgresql.conf.

Add support for PGHOST, PGPORT, PGUSER environment variables

Kurt Roeckx.  Add some documentation to try to prevent others from
repeating my mistake.

protocol 3, then falls back to 2 if postmaster rejects the startup packet
with an old-format error message.  A side benefit of the rewrite is that
SSL-encrypted connections can now be made without blocking.  (I think,
anyway, but do not have a good way to test.)

> 	o Have COPY return number of rows loaded/unloaded

catalog lookups when not in a transaction.  This prevents bizarre
failures if someone tries to set a value for session_authorization in
postgresql.conf.  Per report from Fernando Nasser.

> * Add checks for fclose() failure

extensions to support our historical behavior.  An aggregate belongs
to the closest query level of any of the variables in its argument,
or the current query level if there are no variables (e.g., COUNT(*)).
The implementation involves adding an agglevelsup field to Aggref,
and treating outer aggregates like outer variables at planning time.