Marc G. Fournier [Sat, 15 Mar 1997 01:23:58 +0000 (01:23 +0000)]
From: Massimo Dal Zotto <dz@cs.unitn.it>
Subject: [HACKERS] lock debug trace
This is an update to my previous patches for lock debugging, already applied
to the current sources. It adds some improvements in the output messages and
some more output in WaitOnLock(). I have used with success to trace a nasty
deadlock condition on pg_listener.
Marc G. Fournier [Fri, 14 Mar 1997 16:03:02 +0000 (16:03 +0000)]
> There are some minor fixes to the GEQO.
> Please apply them to the direcory "backend/optimizer/geqo".
> Two new files with different crossover techniques are included.
> Standard procedure is optimization by means of "geqo_erx.c"
> (Edge Recombination Crossover).
From: "Martin S. Utesch" <utesch@aut.tu-freiberg.de>
Marc G. Fournier [Wed, 12 Mar 1997 21:23:16 +0000 (21:23 +0000)]
From: Dan McGuirk <mcguirk@indirect.com>
Subject: [HACKERS] password authentication
This patch adds support for plaintext password authentication. To use
it, you add a line like
host all 0.0.0.0 0.0.0.0 password pg_pwd.conf
to your pg_hba.conf, where 'pg_pwd.conf' is the name of a file containing
the usernames and password hashes in the format of the first two fields
of a Unix /etc/passwd file. (Of course, you can use a specific database
name or IP instead.)
Then, to connect with a password through libpq, you use the PQconnectdb()
function, specifying the "password=" tag in the connect string and also
adding the tag "authtype=password".
I also added a command-line switch '-u' to psql that tells it to prompt
for a username and password and use password authentication.
Marc G. Fournier [Wed, 12 Mar 1997 21:13:19 +0000 (21:13 +0000)]
From: Dan McGuirk <mcguirk@indirect.com>
Subject: [HACKERS] linux/alpha patches
These patches lay the groundwork for a Linux/Alpha port. The port doesn't
actually work unless you tweak the linker to put all the pointers in the
first 32 bits of the address space, but it's at least a start. It
implements the test-and-set instruction in Alpha assembly, and also fixes
a lot of pointer-to-integer conversions, which is probably good anyway.
Marc G. Fournier [Wed, 12 Mar 1997 21:00:17 +0000 (21:00 +0000)]
From: Dan McGuirk <mcguirk@indirect.com>
Subject: [HACKERS] linux/alpha patches
These patches lay the groundwork for a Linux/Alpha port. The port doesn't
actually work unless you tweak the linker to put all the pointers in the
first 32 bits of the address space, but it's at least a start. It
implements the test-and-set instruction in Alpha assembly, and also fixes
a lot of pointer-to-integer conversions, which is probably good anyway.
Marc G. Fournier [Wed, 12 Mar 1997 20:48:48 +0000 (20:48 +0000)]
From: Dan McGuirk <mcguirk@indirect.com>
Subject: [HACKERS] better access control error messages
This patch replaces the 'no such class or insufficient privilege' with
distinct error messages that tell you whether the table really doesn't
exist or whether access was denied.
Marc G. Fournier [Wed, 12 Mar 1997 20:41:14 +0000 (20:41 +0000)]
From: Dan McGuirk <mcguirk@indirect.com>
Subject: [HACKERS] abort failed transaction patch
This patch allows you to end a transaction that has failed on an error
using the 'ABORT' statement without generating another error message.
(By default you get an error unless you use 'END' to terminate the
transaction, which has already been aborted anyway.)
Marc G. Fournier [Thu, 20 Feb 1997 22:54:18 +0000 (22:54 +0000)]
Make the error message output by AllocateFile() if failes to
open Nulldev a *bit* more user friendly...or, at least, admin
friendly...have it print strerror(errno) as well
Marc G. Fournier [Wed, 19 Feb 1997 14:52:06 +0000 (14:52 +0000)]
Various cleanups to satisfy -Werror, but there are some errors that I'm
not certain how to fix, so left them there and enabled -Wno-error for
this directory for now
Marc G. Fournier [Wed, 19 Feb 1997 13:11:58 +0000 (13:11 +0000)]
And, make sure that initdb.sh copies the pg_geqo.sample file to
${DATADIR}. The file is left as pg_geqo.sample, since, unlike
pg_hba.conf, it isn't a required file...but this way ppl know that
its there, and that its where it is required, if they choose to
use it
Marc G. Fournier [Thu, 13 Feb 1997 08:06:36 +0000 (08:06 +0000)]
Patch for:
The following patch to src/backend/libpq/pqpacket.c provides additional
checking for bad packet length data. It was tested with the Linux telnet
client, with netcat using the numbers.txt and by dumping random numbers
into the port.
Marc G. Fournier [Wed, 12 Feb 1997 05:25:13 +0000 (05:25 +0000)]
Patch from Massimo Dal Zotto <dz@cs.unitn.it>
The following patches add to the backend a new debugging flag -K which prints
a debug trace of all locking operations on user relations (those with oid
greater than 20000). The code is compiled only if LOCK_MGR_DEBUG is defined,
so the patch should be harmless if not explicitly enabled.
I'm using the code to trace deadlock conditions caused by application queries
using the command "$POSTMASTER -D $PGDATA -o '-d 1 -K 1'.
The patches are for version 6.0 dated 970126.
Marc G. Fournier [Wed, 12 Feb 1997 05:04:52 +0000 (05:04 +0000)]
What looks like some *major* improvements to btree indexing...
Patches from: aoki@CS.Berkeley.EDU (Paul M. Aoki)
i gave jolly my btree bulkload code a long, long time ago but never
gave him a bunch of my bugfixes. here's a diff against the 6.0
baseline.
for some reason, this code has slowed down somewhat relative to the
insertion-build code on very small tables. don't know why -- it used
to be within about 10%. anyway, here are some (highly unscientific!)
timings on a dec 3000/300 for synthetic tables with 10k, 100k and
1000k tuples (basically, 1mb, 10mb and 100mb heaps). 'c' means
clustered (pre-sorted) inputs and 'u' means unclustered (randomly
ordered) inputs. the 10k table basically fits in the buffer pool, but
the 100k and 1000k tables don't. as you can see, insertion build is
fine if you've sorted your heaps on your index key or if your heap
fits in core, but is absolutely horrible on unordered data (yes,
that's 7.5 hours to index 100mb of data...) because of the zillions of
random i/os.
if it doesn't work for you for whatever reason, you can always turn it
back off by flipping the FastBuild flag in nbtree.c. i don't have
time to maintain it.
good luck!
baseline code:
time psql -c 'create index c10 on k10 using btree (c int4_ops)' bttest
real 8.6
time psql -c 'create index u10 on k10 using btree (b int4_ops)' bttest
real 9.1
time psql -c 'create index c100 on k100 using btree (c int4_ops)' bttest
real 59.2
time psql -c 'create index u100 on k100 using btree (b int4_ops)' bttest
real 652.4
time psql -c 'create index c1000 on k1000 using btree (c int4_ops)' bttest
real 636.1
time psql -c 'create index u1000 on k1000 using btree (b int4_ops)' bttest
real 26772.9
bulkloading code:
time psql -c 'create index c10 on k10 using btree (c int4_ops)' bttest
real 11.3
time psql -c 'create index u10 on k10 using btree (b int4_ops)' bttest
real 10.4
time psql -c 'create index c100 on k100 using btree (c int4_ops)' bttest
real 59.5
time psql -c 'create index u100 on k100 using btree (b int4_ops)' bttest
real 63.5
time psql -c 'create index c1000 on k1000 using btree (c int4_ops)' bttest
real 636.9
time psql -c 'create index u1000 on k1000 using btree (b int4_ops)' bttest
real 701.0
Essentially, config.h now includes an 'os.h', which is created via
configure by linking a "port.h" file from the port directory to the
include directory.
Going to try to merge backend/port in similar ways
projects / postgresql / log