On 3/4/15 2:56 PM, Stephen Frost wrote:
2) The per-session salt sent to the client is only 32-bits, meaning
that it is possible to reply an observed MD5 hash in ~16k connection
attempts.
Yes, and we have no (PG-based) mechanism to prevent those connection
attempts, which is a pretty horrible
* Jim Nasby (jim.na...@bluetreble.com) wrote:
On 3/4/15 2:56 PM, Stephen Frost wrote:
2) The per-session salt sent to the client is only 32-bits, meaning
that it is possible to reply an observed MD5 hash in ~16k connection
attempts.
Yes, and we have no (PG-based) mechanism to prevent those
On 3/5/15 2:17 PM, Stephen Frost wrote:
* Jim Nasby (jim.na...@bluetreble.com) wrote:
On 3/4/15 2:56 PM, Stephen Frost wrote:
2) The per-session salt sent to the client is only 32-bits, meaning
that it is possible to reply an observed MD5 hash in ~16k connection
attempts.
Yes, and we have
On 3/4/15 9:10 AM, Robert Haas wrote:
On Wed, Feb 25, 2015 at 5:06 PM, Jim Nasby jim.na...@bluetreble.com wrote:
Could the large allocation[2] for the dead tuple array in lazy_space_alloc
cause problems with linux OOM? [1] and some other things I've read indicate
that a large mmap will count
Peter Geoghegan wrote:
I'm seeing this on a the master branch tip when building at -O2:
pg_conversion.c: In function ‘ConversionCreate’:
pg_conversion.c:53:6: error: variable ‘oid’ set but not used
[-Werror=unused-but-set-variable]
Oid oid;
^
cc1: all warnings being treated as
On 3/4/15 7:13 PM, Jan de Visser wrote:
On March 4, 2015 11:08:09 PM Andres Freund wrote:
Let's get the basic feature (notification of failed reloads) done
first. That will be required with or without including the error
message. Then we can get more fancy later, if somebody really wants to
* Jim Nasby (jim.na...@bluetreble.com) wrote:
On 3/5/15 2:17 PM, Stephen Frost wrote:
* Jim Nasby (jim.na...@bluetreble.com) wrote:
I'm all for it, though I would ask that we provide a way for superusers
to delegate the ability to reset locked accounts to non-superusers.
I'd want to think
On Wed, Mar 4, 2015 at 5:18 PM, Peter Geoghegan p...@heroku.com wrote:
Attached patch series forms what I'm calling V3.0 of the INSERT ... ON
CONFLICT IGNORE/UPDATE feature. (Sorry about all the threads. I feel
this development justifies a new thread, though.)
Bruce Momjian kindly made
On Wed, Mar 4, 2015 at 2:03 PM, Michael Paquier
michael.paqu...@gmail.com wrote:
On Wed, Mar 4, 2015 at 6:48 AM, Peter Eisentraut pete...@gmx.net wrote:
- set up basic scaffolding for TAP tests in src/bin/pg_dump
Agreed.
- write a Perl function that can create an extension on the fly, given
On 06-03-2015 AM 01:32, Tom Lane wrote:
Alvaro Herrera alvhe...@2ndquadrant.com writes:
appendStringInfo(buffer, _(user mapping for %s in server %s),
usename,
srv-servername);
+1 for the concept, but to be nitpicky, in doesn't seem like the right
word
On 06-03-2015 AM 09:18, Amit Langote wrote:
On 06-03-2015 AM 01:32, Tom Lane wrote:
+1 for the concept, but to be nitpicky, in doesn't seem like the right
word here. on server would read better to me; or perhaps at server.
One more option may be for server (reading the doc for CREATE USER
On 06-03-2015 AM 09:30, Tom Lane wrote:
Amit Langote langote_amit...@lab.ntt.co.jp writes:
One more option may be for server (reading the doc for CREATE USER MAPPING)
Hm, but then you'd have user mapping for foo for server bar, which
doesn't read so nicely either.
Yeah, I had totally
On 2/28/15 12:01 PM, David Kubečka wrote:
With 'random_fk_dupl':
- Index Scan using facts_fk_idx on facts (cost=0.42..5.75
rows=100 width=15) (actual time=0.009..0.117 rows=98 loops=100)
With 'random_fk_uniq':
- Index Scan using facts_fk_idx on facts (cost=0.42..214.26
Amit Langote langote_amit...@lab.ntt.co.jp writes:
By the way, in this case, is foo the name/id of a local user or does it
really refer to some foo on the remote server?
It's the name of a local user. I see your point that somebody might
misread this as suggesting that it's a remote username,
Actually val and val2 come from public.lt in r side, but as you say
it's too difficult to know that from EXPLAIN output. Do you have any
idea to make the Output item more readable?
A fundamental reason why we need to have symbolic aliases here is that
postgres_fdw has remote query in cstring
On 3/5/15 9:42 AM, Greg Stark wrote:
Well if you want to read the file as is you can do so using the file
reading functions which afaik were specifically intended for the
purpose of writing config editing tools.
Sure, but those things are almost never installed by default, and I
don't want to
On Thu, Mar 5, 2015 at 10:28 PM, Andres Freund and...@2ndquadrant.com wrote:
On 2015-03-05 12:14:04 +, Syed, Rahila wrote:
Please find attached a patch. As discussed, flag to denote
compression and presence of hole in block image has been added in
XLogRecordImageHeader rather than block
Amit Langote langote_amit...@lab.ntt.co.jp writes:
On 06-03-2015 AM 01:32, Tom Lane wrote:
+1 for the concept, but to be nitpicky, in doesn't seem like the right
word here. on server would read better to me; or perhaps at server.
One more option may be for server (reading the doc for CREATE
In bug #12832 Marko Tiikkaja points out that commit
7b583b20b1c95acb621c71251150beef958bb603 created a rather unnecessary
dump failure hazard, since it applies pg_get_function_identity_arguments()
to every function in the database, even those that won't get dumped.
I think we should fix this by
Tom Lane-2 wrote
Amit Langote lt;
Langote_Amit_f8@.co
gt; writes:
By the way, in this case, is foo the name/id of a local user or does it
really refer to some foo on the remote server?
It's the name of a local user. I see your point that somebody might
misread this as suggesting that
On 3/4/15 10:28 PM, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
On 2/13/15 10:20 AM, Teodor Sigaev wrote:
Some of users of intarray contrib module wish to use its features with
another kind of arrays, not only for int4 type. Suggested module
generalizes intarray over other (not
On 3/4/15 1:41 AM, Oskari Saarenmaa wrote:
I'm interested in this because it could potentially make it possible to
install SQL extensions without OS access. (My understanding is there's
some issue with writing the extension files even if LIBDIR is writable
by the OS account).
I'm not sure this
On Thu, Mar 5, 2015 at 10:55:28AM +0300, Vladimir Borodin wrote:
You are correct that a pg_controldata file is copied over that has
wal_level=minimal, but that should not be a problem.
I suppose, this is the root cause of why replica does not start as hot
standby.
It it enough
On 3/5/15 7:58 PM, Jim Nasby wrote:
This got answered on one of the other lists, right?
That was supposed to be off-list. I'll answer my own question: yes.
Sorry for the noise. :(
--
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com
* Bruce Momjian (br...@momjian.us) wrote:
One way to fix #2 would be to use a per-user or per-cluster counter for
the session salt, rather than a random number --- that would change
replays from ~16k to 4 billion, with no wire protocol change needed.
I'm not against doing that if we decide to
* Bruce Momjian (br...@momjian.us) wrote:
On Wed, Mar 4, 2015 at 04:19:00PM -0500, Stephen Frost wrote:
Hm, well, don't change the wireline protocol could be another wanna-have
... but if we want to stop using MD5, that's not really a realistic goal
is it?
I'm trying to address
Alvaro Herrera alvhe...@2ndquadrant.com writes:
When commit cae565e503 introduced FDW user mappings, it used this in
getObjectDescription for them:
appendStringInfo(buffer, _(user mapping for %s), usename);
This was later mostly copied (by yours truly) as object identity by
commit
On Sat, Feb 28, 2015 at 2:27 PM, Stephen Frost sfr...@snowman.net wrote:
Sawada,
* Sawada Masahiko (sawada.m...@gmail.com) wrote:
Attached patch is latest version including following changes.
- This view is available to super use only
- Add sourceline coulmn
Alright, first off, to Josh's
Sandro == Sandro Santilli s...@keybit.net writes:
Sandro PostGIS installs standard constraints of this kind:
Sandro CHECK (geometrytype(g) = 'POINT'::text OR g IS NULL)
If geometrytype() is strict, the IS NULL condition is superfluous.
CHECK(x) _passes_ when x is null, rather than
* Tom Lane (t...@sss.pgh.pa.us) wrote:
Peter Eisentraut pete...@gmx.net writes:
Any other opinions?
The options are:
0) Leave as is.
1) Remove catupdate and replace with superuser checks.
2) Remove catupdate and rely on regular table permissions on catalogs.
I think I vote for (1).
* Peter Eisentraut (pete...@gmx.net) wrote:
On 3/3/15 5:29 PM, Stephen Frost wrote:
For my part, I understood that we specifically didn't want to allow that
for the same reason that we didn't want to simply depend on the GRANT
system for the above functions, but everyone else on these
* Peter Eisentraut (pete...@gmx.net) wrote:
On 2/28/15 10:10 PM, Stephen Frost wrote:
* Adam Brightwell (adam.brightw...@crunchydatasolutions.com) wrote:
I have attached and updated patch for review.
Thanks! I've gone over this and made quite a few documentation and
comment updates,
Alvaro,
* Alvaro Herrera (alvhe...@2ndquadrant.com) wrote:
Thanks for the review. I have pushed these patches, squashed in one
commit, with the exception of the one that changed ALTER TABLE. You had
enough comments about that one that I decided to put it aside for now,
and get the other
On Tue, Feb 17, 2015 at 3:29 AM, Petr Jelinek p...@2ndquadrant.com wrote:
I didn't add the whole page visibility caching as the tuple ids we get
from sampling methods don't map well to the visibility info we get from
heapgetpage (it maps to the values in the rs_vistuples array not to to its
On Thu, Dec 18, 2014 at 6:43 PM, Fujii Masao masao.fu...@gmail.com wrote:
On Tue, Dec 16, 2014 at 3:51 AM, Simon Riggs si...@2ndquadrant.com wrote:
Currently, WALReceiver writes and fsyncs data it receives. Clearly,
while we are waiting for an fsync we aren't doing any other useful
work.
On Thu, Mar 5, 2015 at 9:58 AM, Alvaro Herrera alvhe...@2ndquadrant.com wrote:
Robert Haas wrote:
On Sun, Mar 1, 2015 at 6:58 AM, Michael Paquier
michael.paqu...@gmail.com wrote:
Hm, why not. That would remove all inconsistencies between the parser
and the autovacuum code path. Perhaps
On Wed, Mar 4, 2015 at 11:00 PM, Kouhei Kaigai kai...@ak.jp.nec.com wrote:
Anyway, I could find out, at least, these complicated issues around
two-phase aggregate integration with planner. Someone can suggest
minimum invasive way for these integration?
I don't think I have the brain space to
* Josh Berkus (j...@agliodbs.com) wrote:
Catching up here ...
On 03/03/2015 06:01 PM, Bruce Momjian wrote:
It feels like MD5 has accumulated enough problems that we need to start
looking for another way to store and pass passwords. The MD5 problems
are:
1) MD5 makes users feel
* Peter Eisentraut (pete...@gmx.net) wrote:
On 3/3/15 5:58 PM, Tom Lane wrote:
One aspect of this that merits some thought is that in some cases
access to some set of functions is best granted as a unit. That's
easy with role properties but much less so with plain GRANT.
Do we have
Here is the v5 patch of Join push-down support for foreign tables.
Changes since v4:
- Separete remote conditions into ON and WHERE, per Ashutosh.
- Add regression test cases for foreign join.
- Don't skip reversed relation combination in OUTER join cases.
I'm now working on two issues from
On Wed, Mar 4, 2015 at 11:42 PM, Bruce Momjian br...@momjian.us wrote:
On Thu, Mar 5, 2015 at 01:25:13PM +0900, Fujii Masao wrote:
Yeah, it might make the situation better than today. But I'm afraid that
many users might get disappointed about that behavior of an incremental
backup after
Alvaro,
* Alvaro Herrera (alvhe...@2ndquadrant.com) wrote:
Robert Haas wrote:
On Sun, Mar 1, 2015 at 6:58 AM, Michael Paquier
michael.paqu...@gmail.com wrote:
Hm, why not. That would remove all inconsistencies between the parser
and the autovacuum code path. Perhaps something like the
When commit cae565e503 introduced FDW user mappings, it used this in
getObjectDescription for them:
appendStringInfo(buffer, _(user mapping for %s), usename);
This was later mostly copied (by yours truly) as object identity by
commit f8348ea32e wherein I used this:
* Bruce Momjian (br...@momjian.us) wrote:
On Wed, Mar 4, 2015 at 05:56:25PM -0800, Josh Berkus wrote:
So, are we more worried about attackers getting a copy of pg_authid, or
sniffing the hash on the wire?
Both. Stephen is more worried about pg_authid, but I am more worried
about
2015-03-04 22:41 GMT+01:00 Peter Eisentraut pete...@gmx.net:
On 3/3/15 7:17 PM, Jim Nasby wrote:
I think we're screwed in that regard anyway, because of the special
constructs. You'd need different logic to handle things like +role and
sameuser. We might even end up painted in a corner
Hi Ashutosh, thanks for the review.
2015-03-04 19:17 GMT+09:00 Ashutosh Bapat ashutosh.ba...@enterprisedb.com:
In create_foreignscan_path() we have lines like -
1587 pathnode-path.param_info = get_baserel_parampathinfo(root, rel,
1588
required_outer);
Now, that the same function is being
On Thu, Feb 19, 2015 at 3:32 PM, Michael Paquier
michael.paqu...@gmail.com wrote:
On Thu, Feb 19, 2015 at 2:13 PM, Naoya Anzai
anzai-na...@mxu.nes.nec.co.jp wrote:
As a result, I think you should not delete VACOPT_VERBOSE.
In v8 it is not deleted. It is still declared, and its use is isolated
On Wed, Mar 4, 2015 at 9:41 PM, Peter Eisentraut pete...@gmx.net wrote:
everyone seems to have quite different uses for it. Greg wants to join
against other catalog tables, Jim wants to reassemble a valid and
accurate pg_hba.conf, Josh wants to write an editing tool. Personally,
I'd like to
On 2015/03/04 17:07, Etsuro Fujita wrote:
On 2015/03/04 16:58, Albe Laurenz wrote:
Etsuro Fujita wrote:
While updating the patch, I noticed that in the previous patch, there is
a bug in pushing down parameterized UPDATE/DELETE queries; generic plans
for such queries fail with a can't-happen
Hello,
Please find attached a patch. As discussed, flag to denote compression and
presence of hole in block image has been added in XLogRecordImageHeader rather
than block header.
Following are WAL numbers based on attached test script posted by Michael
earlier in the thread.
PostGIS installs standard constraints of this kind:
CHECK (geometrytype(g) = 'POINT'::text OR g IS NULL)
The constraint is used by constraint_exclusion if using this condition:
WHERE g IS NOT NULL AND geometrytype(g) = 'LINESTRING'
But it is _NOT_ used if the NOT NULL condition is removed:
On Thu, Mar 5, 2015 at 9:14 PM, Syed, Rahila rahila.s...@nttdata.com wrote:
Please find attached a patch. As discussed, flag to denote compression and
presence of hole in block image has been added in XLogRecordImageHeader
rather than block header.
Following are WAL numbers based on
On 2015-03-05 12:14:04 +, Syed, Rahila wrote:
Please find attached a patch. As discussed, flag to denote
compression and presence of hole in block image has been added in
XLogRecordImageHeader rather than block header.
FWIW, I personally won't commit it with things done that way. I think
On 03/04/2015 10:28 PM, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
On 2/13/15 10:20 AM, Teodor Sigaev wrote:
Some of users of intarray contrib module wish to use its features with
another kind of arrays, not only for int4 type. Suggested module
generalizes intarray over other
Robert Haas wrote:
On Sun, Mar 1, 2015 at 6:58 AM, Michael Paquier
michael.paqu...@gmail.com wrote:
Hm, why not. That would remove all inconsistencies between the parser
and the autovacuum code path. Perhaps something like the attached
makes sense then?
I really don't see this patch, or
On Thu, Mar 5, 2015 at 9:30 AM, Kouhei Kaigai kai...@ak.jp.nec.com wrote:
On Wed, Mar 4, 2015 at 4:41 AM, David Rowley dgrowle...@gmail.com
wrote:
This thread mentions parallel queries as a use case, but that means
passing data between processes, and that requires being able to
On 3/2/15 10:58 AM, Sawada Masahiko wrote:
On Wed, Feb 25, 2015 at 4:58 PM, Jim Nasby jim.na...@bluetreble.com wrote:
On 2/24/15 8:28 AM, Sawada Masahiko wrote:
According to the above discussion, VACUUM and REINDEX should have
trailing options. Tom seems (to me) suggesting that SQL-style
On 6 March 2015 at 19:01, Ashutosh Bapat ashutosh.ba...@enterprisedb.com
wrote:
Postgres-XC solved this question by creating a plan with two Agg/Group
nodes, one for combining transitioned result and one for creating the
distributed transition results (one per distributed run per group).
6 марта 2015 г., в 6:11, Bruce Momjian br...@momjian.us написал(а):
On Thu, Mar 5, 2015 at 10:55:28AM +0300, Vladimir Borodin wrote:
You are correct that a pg_controldata file is copied over that has
wal_level=minimal, but that should not be a problem.
I suppose, this is the
On Fri, Mar 6, 2015 at 12:41 PM, David Rowley dgrow...@gmail.com wrote:
On 6 March 2015 at 19:01, Ashutosh Bapat ashutosh.ba...@enterprisedb.com
wrote:
Postgres-XC solved this question by creating a plan with two Agg/Group
nodes, one for combining transitioned result and one for creating the
On Fri, Mar 6, 2015 at 12:42 AM, Robert Haas wrote:
On Thu, Mar 5, 2015 at 9:58 AM, Alvaro Herrera wrote:
Here's a simple idea to improve the patch: make VacuumParams include
VacuumStmt and the for_wraparound and do_toast flags. ISTM that reduces
the number of arguments to be passed down in a
On Thu, Mar 5, 2015 at 9:49 PM, Michael Paquier
michael.paqu...@gmail.com wrote:
On Thu, Mar 5, 2015 at 7:10 PM, Fujii Masao wrote:
With the patch, VACUUM ANALYZE VERBOSE doesn't emit any verbose message.
Why did you remove that functionality?
Oops. Sorry about that. In gram.y, the
=?UTF-8?Q?David_Kube=C4=8Dka?= kubecka@gmail.com writes:
There is division by loop_count because of predicted effect of caching and
it is exactly this division which makes the run_cost for single index
lookup so low compared with the query version with random_fk_uniq. So the
main problem
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