On Wed, Aug 7, 2013 at 10:37 PM, Andres Freund and...@2ndquadrant.com wrote:
On 2013-08-07 09:40:24 -0500, Merlin Moncure wrote:
I don't think the unlocked increment of nextVictimBuffer is a good idea
though. nextVictimBuffer jumping over NBuffers under concurrency seems
like a recipe for
On Mon, Aug 26, 2013 at 10:15 PM, Pavel Stehule pavel.steh...@gmail.com wrote:
Hello
very nice! I tested it and works very well.
And I looking for implementation in core.
Two notes:
* should to support string_agg and array_agg
Regards
Pavel
2013/8/26 Vik Fearing
Sent from my iPad
On 27-Aug-2013, at 19:44, Andres Freund and...@2ndquadrant.com wrote:
Hi Noah,
On 2013-06-09 17:25:59 -0400, Noah Misch wrote:
*** a/src/backend/tcop/postgres.c
--- b/src/backend/tcop/postgres.c
***
*** 69,74
--- 69,75
#include tcop/tcopprot.h
On Wed, Sep 4, 2013 at 6:40 AM, Satoshi Nagayasu sn...@uptime.jp wrote:
Hi,
I'm considering overhauling pgstat.stat, and would like to know how many
people are interested in this topic.
As you may know, this file could be handreds of MB in size, because
pgstat.stat holds all access
Sent from my iPad
On 04-Sep-2013, at 10:54, Satoshi Nagayasu sn...@uptime.jp wrote:
Hi,
(2013/09/04 12:52), Atri Sharma wrote:
On Wed, Sep 4, 2013 at 6:40 AM, Satoshi Nagayasu sn...@uptime.jp wrote:
Hi,
I'm considering overhauling pgstat.stat, and would like to know how many
people
Sent from my iPad
On 04-Sep-2013, at 15:39, Satoshi Nagayasu sn...@uptime.jp wrote:
(2013/09/04 15:23), Atri Sharma wrote:
Sent from my iPad
On 04-Sep-2013, at 10:54, Satoshi Nagayasu sn...@uptime.jp wrote:
Hi,
(2013/09/04 12:52), Atri Sharma wrote:
On Wed, Sep 4, 2013 at 6:40
Sent from my iPad
On 04-Sep-2013, at 21:38, Peter Eisentraut pete...@gmx.net wrote:
On 7/19/13 11:59 AM, Atri Sharma wrote:
Hi all,
This is our current work-in-progress patch for WITHIN GROUP.
This patch needs to be rebased.
This version of patch is quite old.We will be sending
Sent from my iPad
On 05-Sep-2013, at 8:58, Satoshi Nagayasu sn...@uptime.jp wrote:
(2013/09/05 3:59), Alvaro Herrera wrote:
Tomas Vondra wrote:
My idea was to keep the per-database stats, but allow some sort of
random access - updating / deleting the records in place, adding
records
On Thu, Sep 5, 2013 at 10:59 AM, Alvaro Herrera
alvhe...@2ndquadrant.com wrote:
Satoshi Nagayasu wrote:
But, for now, I think we should have a real index for the
statistics data because we already have several index storages,
and it will allow us to minimize read/write operations.
BTW, what
Sent from my iPad
On 08-Sep-2013, at 4:27, Tomas Vondra t...@fuzzy.cz wrote:
On 5.9.2013 09:36, Atri Sharma wrote:
On Thu, Sep 5, 2013 at 10:59 AM, Alvaro Herrera
alvhe...@2ndquadrant.com wrote:
Satoshi Nagayasu wrote:
But, for now, I think we should have a real index
Sent from my iPad
On 08-Sep-2013, at 4:27, Tomas Vondra t...@fuzzy.cz wrote:
On 5.9.2013 09:36, Atri Sharma wrote:
On Thu, Sep 5, 2013 at 10:59 AM, Alvaro Herrera
alvhe...@2ndquadrant.com wrote:
Satoshi Nagayasu wrote:
But, for now, I think we should have a real index
Sent from my iPad
On 07-Oct-2013, at 4:11, Tomas Vondra t...@fuzzy.cz wrote:
On 6.10.2013 20:37, Tomáš Janoušek wrote:
Hi,
On Sat, Oct 05, 2013 at 08:22:54PM +0200, Tomas Vondra wrote:
I'm on 64-bit architecture and the example works with int32, which means
the sizes should be about
Hi Tomas,
Consider the aspects associated with open addressing.Open addressing
can quickly lead to growth in the main table.Also, chaining is a much
cleaner way of collision resolution,IMHO.
What do you mean by growth in the main table?
Sorry, I should have been more verbose.
AFAIK, Open
Sent from my iPad
On 08-Oct-2013, at 10:41, Claudio Freire klaussfre...@gmail.com wrote:
On Tue, Oct 8, 2013 at 1:23 AM, Atri Sharma atri.j...@gmail.com wrote:
Consider the aspects associated with open addressing.Open addressing
can quickly lead to growth in the main table.Also, chaining
Sent from my iPad
However I'm unable to make it at least comparable to chaining. The trick
is that the hash table performs reasonably only until it's ~ 65-70% full,
it gets really slow after that. So to maintain performance comparable to
chaining, I'd have to keep the table below this
On Tue, Oct 8, 2013 at 4:15 PM, Tomas Vondra t...@fuzzy.cz wrote:
On 8 Říjen 2013, 11:42, Atri Sharma wrote:
I've made some significant improvements in the chaining version (in the
master branch), now getting about the memory consumption I've estimated.
I agree, we can hope to reduce
On Thu, Oct 24, 2013 at 12:23 AM, Mike Blackwell mike.blackw...@rrd.com wrote:
Sounds good. I personally don't have any interest in log file i/o counters,
but that's just me. I wonder if stats collector counters might be useful...
I seem to recall an effort to improve that area. Maybe not
On Thu, Oct 24, 2013 at 12:30 AM, Mike Blackwell mike.blackw...@rrd.com wrote:
On Wed, Oct 23, 2013 at 1:58 PM, Atri Sharma atri.j...@gmail.com wrote:
IMO, the idea is pretty good. Its just that we need to do some wide
spectrum performance testing. Thats only my thought though.
I'm
On Friday, November 1, 2013, k...@rice.edu wrote:
On Fri, Nov 01, 2013 at 01:31:10PM +, Dimitri Fontaine wrote:
Hi,
Here's an idea: when a user ask for an Hash Index transparently build a
BTree index over an hash function instead.
Advantages:
- it works
- it's crash
On Friday, November 1, 2013, Jim Nasby wrote:
On Oct 31, 2013, at 2:57 PM, Kevin Grittner
kgri...@ymail.comjavascript:_e({}, 'cvml', 'kgri...@ymail.com');
wrote:
Joe Love j...@primoweb.com javascript:_e({}, 'cvml',
'j...@primoweb.com'); wrote:
In postgres 9.2 I have a function that is
On Sat, Nov 2, 2013 at 2:00 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Jim Nasby j...@nasby.net writes:
On Oct 31, 2013, at 11:04 AM, Joe Love j...@primoweb.com wrote:
In postgres 9.2 I have a function that is relatively expensive. When I
write a query such as:
select
On Tue, Nov 5, 2013 at 11:55 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Joe Love j...@primoweb.com writes:
I'm wondering what type of index would work for this as it is a volatile
function. Not knowing how PGs optimizer runs, I'm at a loss as to why this
wouldn't be possible or worth doing. It
On Tue, Nov 12, 2013 at 11:53 AM, Craig Ringer cr...@2ndquadrant.com wrote:
On 11/12/2013 03:26 AM, Rohit Goyal wrote:
Hi,
Actually,
I want to test an algorithm in which I will use store tuple_id in some
other data structure and value of the key of index will contain some
random created by
On Tue, Nov 19, 2013 at 11:43 PM, Mike Blackwell mike.blackw...@rrd.com wrote:
This patch looks good to me. It applies, builds, and runs the regression
tests. Documentation is included and it seems to do what it says. I don't
consider myself a code expert, but as far as I can see it looks
I guess the view query would have to be validated by the FDW, which
would just receive a text.
+1
This is not exactly in context, but I and David Fetter discussed
recently how we could do similar thing.
This would work,but how can we do it for FDWs which do not parse SQL?
Am I missing
On Wed, Nov 27, 2013 at 11:08 PM, Dimitri Fontaine
dimi...@2ndquadrant.fr wrote:
Atri Sharma atri.j...@gmail.com writes:
This would work,but how can we do it for FDWs which do not parse SQL?
Am I missing something here?
Worst case:
CREATE FOREIGN VIEW foo
AS $$
whatever syntax
On Thu, Nov 28, 2013 at 12:54 AM, David Fetter da...@fetter.org wrote:
On Wed, Nov 27, 2013 at 10:29:34AM -0300, Alvaro Herrera wrote:
Shigeru Hanada escribió:
SQL/MED standard doesn't say much about PASS THROUGH mode, especially
about interaction between client. Besides it, I think it
On Fri, Nov 29, 2013 at 12:16 AM, Tom Lane t...@sss.pgh.pa.us wrote:
While debugging the recent fastpath lock unpleasantness, I noticed that
the code tends to use only the last few entries in the fpRelId[] arrays,
which seemed a bit surprising. The reason of course is the way that
Sent from my iPad
On 28-Nov-2013, at 16:13, Dimitri Fontaine dimi...@2ndquadrant.fr wrote:
Tom Lane t...@sss.pgh.pa.us writes:
I'm not real sure what this'd buy us that wouldn't be done as well or
better by creating a view on the remote side. (IOW, there's nothing
that says that the
Sent from my iPad
On 30-Nov-2013, at 14:30, mohsen soodkhah mohammadi
mohsensoodk...@gmail.com wrote:
if I don't dalloc parameters that allocated with palloc0 then will free the
allocated memory at the end of transaction?
Yes, palloc allocates memory in contexts, and the memory
Sent from my iPad
On 07-Dec-2013, at 23:47, Fujii Masao masao.fu...@gmail.com wrote:
On Wed, Nov 20, 2013 at 3:18 AM, Atri Sharma atri.j...@gmail.com wrote:
On Tue, Nov 19, 2013 at 11:43 PM, Mike Blackwell mike.blackw...@rrd.com
wrote:
This patch looks good to me. It applies, builds
On Tue, Dec 10, 2013 at 10:59 AM, Fujii Masao masao.fu...@gmail.com wrote:
On Tue, Dec 10, 2013 at 6:56 AM, Nigel Heron nhe...@querymetrics.com wrote:
On Sat, Dec 7, 2013 at 1:17 PM, Fujii Masao masao.fu...@gmail.com wrote:
Could you share the performance numbers? I'm really concerned about
On Wed, Dec 11, 2013 at 11:12 PM, Peter Eisentraut pete...@gmx.net wrote:
On 12/10/13, 5:08 PM, Tom Lane wrote:
Having said that, I can't get very excited about this feature anyway,
so I'm fine with rejecting the patch. I'm not sure that enough people
care to justify any added overhead at
Sent from my iPad
On 24-Dec-2013, at 2:50, Tom Lane t...@sss.pgh.pa.us wrote:
Atri Sharma atri.j...@gmail.com writes:
Please find attached the latest patch for WITHIN GROUP. This patch is
after fixing the merge conflicts.
I've committed this after significant editorialization --- most
On Sunday, January 26, 2014, Tom Lane t...@sss.pgh.pa.us wrote:
Jeremy Harris j...@wizmail.org javascript:; writes:
In ordered_set_startup() sorts are initialised in non-randomAccess mode
(tuplesort_begin_heap() and ~datum(), last argument).
The use of tuplesort_skip_tuples() feels very
Sent from my iPad
On 26-Jan-2014, at 4:38, Simon Riggs si...@2ndquadrant.com wrote:
On 25 January 2014 22:33, Stephen Frost sfr...@snowman.net wrote:
* Tom Lane (t...@sss.pgh.pa.us) wrote:
AFAICT, there was no consensus in this thread on what to do, which
probably has something to do
Sent from my iPad
On 27-Jan-2014, at 21:03, David Fetter da...@fetter.org wrote:
On Mon, Jan 27, 2014 at 05:06:19PM +0900, Etsuro Fujita wrote:
Hi Hanada-san,
While still reviwing this patch, I feel this patch has given enough
consideration to interactions with other commands, but
On Tue, Jan 28, 2014 at 11:04 PM, Thom Brown t...@linux.com wrote:
Hi all,
Application to Google Summer of Code 2014 can be made as of next
Monday (3rd Feb), and then there will be a 12 day window in which to
submit an application.
I'd like to gauge interest from both mentors and students
On Tue, Jan 28, 2014 at 11:16 PM, Atri Sharma atri.j...@gmail.com wrote:
On Tue, Jan 28, 2014 at 11:04 PM, Thom Brown t...@linux.com wrote:
Hi all,
Application to Google Summer of Code 2014 can be made as of next
Monday (3rd Feb), and then there will be a 12 day window in which
Sent from my iPad
On 28-Jan-2014, at 10:04, Kouhei Kaigai kai...@ak.jp.nec.com wrote:
I wonder what shall be the cases when foreign table is on a server which
does not support *all* SQL features.
Does a FDW need to have the possible inherit options mentioned in its
documentation for this
On Fri, Feb 21, 2014 at 4:01 PM, Ronan Dunklau ronan.dunk...@dalibo.comwrote:
Hello,
The SQL-MED specification defines the IMPORT FOREIGN SCHEMA statement.
This adds discoverability to foreign servers. The structure of the
statement
as I understand it is simple enough:
IMPORT FOREIGN
On Fri, Feb 21, 2014 at 4:39 PM, Ronan Dunklau ronan.dunk...@dalibo.comwrote:
I havent had a look at the patch yet since I dont have a nice editor
right
now, but how do you handle inter operability between datatypes?
Specifically, how do you handle those datatypes which have a different
On Fri, Feb 21, 2014 at 4:56 PM, Ronan Dunklau ronan.dunk...@dalibo.comwrote:
Le vendredi 21 février 2014 16:45:20 Atri Sharma a écrit :
On Fri, Feb 21, 2014 at 4:39 PM, Ronan Dunklau
ronan.dunk...@dalibo.comwrote:
I havent had a look at the patch yet since I dont have a nice editor
Awesome. I can be an assistant mentor for this one is possible or I could
mentor some other project.
On Tuesday, February 25, 2014, Andreas 'ads' Scherbaum
adsm...@wars-nicht.de wrote:
Hi,
On 01/28/2014 06:46 PM, Atri Sharma wrote:
On Tue, Jan 28, 2014 at 11:04 PM, Thom Brown t
Good points.
In most cases, DDL is applied manually after careful thought, so
people seldom dump at the same time they upgrade the database. This is
especially true for pg_dump since it captures the logical definition
of tables. So most people will be happy with the default locking, but
we
If its not the case, the user should be more careful about when he is
scheduling backups to so that they dont conflict with DDL changes.
That is most certainly the wise choice.
I am not too comfortable with exposing the locking type to the user. That
may be just me though.
Why would
I'd really like to see us find a way to apply some version of this
patch. I was in favor of the concept 3 years ago when we did this the
first time, and I've subsequently done quite a bit of work (viz., MVCC
catalog snapshots) to eliminate the main objection that was raised at
that time. But
On Tue, Mar 4, 2014 at 8:19 PM, Stephen Frost sfr...@snowman.net wrote:
* Atri Sharma (atri.j...@gmail.com) wrote:
If its not the case, the user should be more careful about when he is
scheduling backups to so that they dont conflict with DDL changes.
I'm not following this as closely
On Tue, Mar 4, 2014 at 10:20 PM, Stephen Frost sfr...@snowman.net wrote:
* Tom Lane (t...@sss.pgh.pa.us) wrote:
Stephen Frost sfr...@snowman.net writes:
I don't have too much of an issue with the above, but I would like to
have us figure out a solution to the deadlock problem with
On Saturday, March 8, 2014, Ishaya Bhatt ishayabh...@gmail.com wrote:
Hi,
I am trying to analyze join performance. But I see that even for a table
having 100,000 rows and join attribute as primary key, postgres always
performs hash join.
Can anyone please tell me under which conditions
On Tue, Mar 11, 2014 at 10:56 PM, Simon Riggs si...@2ndquadrant.com wrote:
On 11 March 2014 03:41, Tom Lane t...@sss.pgh.pa.us wrote:
Joe Conway m...@joeconway.com writes:
I am probably missing something obvious, but why does the
AccessShareLock remain held on a table after a SELECT
On Tue, Mar 11, 2014 at 11:07 PM, Simon Riggs si...@2ndquadrant.com wrote:
On 11 March 2014 17:29, Atri Sharma atri.j...@gmail.com wrote:
On Tue, Mar 11, 2014 at 10:56 PM, Simon Riggs si...@2ndquadrant.com
wrote:
On 11 March 2014 03:41, Tom Lane t...@sss.pgh.pa.us wrote:
Joe
On Wed, Mar 12, 2014 at 8:05 PM, Ashutosh Dhundhara
ashutoshdhundh...@yahoo.com wrote:
Hello all,
I am Ashutosh Dhundhara from Thapat University, Patiala-India presently
pursuing Bachelors degree in Computer Science and Engineering.
This year I wish to work for PostgreSQL under the flagship
On Fri, Mar 14, 2014 at 12:29 PM, Tanmay Deshpande tp.deshpand...@gmail.com
wrote:
My doubt is when the query enters into a portal, does it stay in the
portal till the final execution ? i.e. Do the further function calls such
as DefineRelation,create_heap_with_catalog etc. for Create query
On Mon, Mar 17, 2014 at 9:22 PM, Rajmohan C csrajmo...@gmail.com wrote:
I am implementing Planner hints in Postgresql to force the optimizer to
select a particular plan for a query on request from sql input. I am having
trouble in modifying the planner code. I want to create a path node of
On Mon, Mar 17, 2014 at 9:45 PM, Tom Lane t...@sss.pgh.pa.us wrote:
David Johnston pol...@yahoo.com writes:
Need to discuss the general why before any meaningful help on the
how is
going to be considered by hackers.
Possibly worth noting is that in past discussions, we've concluded that
On Mon, Mar 17, 2014 at 10:58 PM, Stephen Frost sfr...@snowman.net wrote:
* Atri Sharma (atri.j...@gmail.com) wrote:
Isnt using a user given value for selectivity a pretty risky situation as
it can horribly screw up the plan selection?
Why not allow the user to specify an alternate plan
The larger question to answer first is whether we want to implement
something that is deterministic...
How about just dropping the whole concept of hinting and provide a way
for
someone to say use this plan, or die trying. Maybe require it be used in
conjunction with named PREPAREd
There's lots of ways to implement planner hints, but I fail to see the
point in discussing how to implement something we actively don't want.
+1. The original poster wanted a way to implement it as a personal project
or something ( I think he only replied to me, not the entire list).
Planner
On Mon, Mar 17, 2014 at 10:54 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Atri Sharma atri.j...@gmail.com writes:
On Mon, Mar 17, 2014 at 9:45 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Possibly worth noting is that in past discussions, we've concluded that
the most sensible type of hint would
There's a big difference between saying to the planner, Use plan X
vs Here's some information describing the data supporting choosing
plan X intelligently. The latter allows for better plans in the face
of varied/changing data, integrates with the planner in natural way,
and encourages users
On Mon, Mar 17, 2014 at 11:50 PM, Merlin Moncure mmonc...@gmail.com wrote:
On Mon, Mar 17, 2014 at 12:57 PM, Atri Sharma atri.j...@gmail.com wrote:
There's a big difference between saying to the planner, Use plan X
vs Here's some information describing the data supporting choosing
plan X
On Tue, Mar 18, 2014 at 12:46 AM, Merlin Moncure mmonc...@gmail.com wrote:
On Mon, Mar 17, 2014 at 1:45 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
I don't believe so SELECTIVITY can work well too. Slow queries are
usually
related to some strange points in data. I am thinking so well
On Tue, Mar 18, 2014 at 11:43 PM, Josh Berkus j...@agliodbs.com wrote:
On Mon, Mar 17, 2014 at 8:47 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Yeah. I would like to see the planner's cost estimates extended to
include some sort of uncertainty estimate, whereupon risk-averse people
could ask
That's precisely what risk estimation was about.
Yeah. I would like to see the planner's cost estimates extended to
include some sort of uncertainty estimate, whereupon risk-averse people
could ask it to prefer low-uncertainty plans over high-uncertainty ones
(the plans we typically
On Thu, Mar 20, 2014 at 8:10 PM, Robert Haas robertmh...@gmail.com wrote:
On Tue, Mar 18, 2014 at 2:41 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Atri Sharma atri.j...@gmail.com writes:
One of the factors that leads to bad estimates is that the histogram of
the
values of a column maintained
On Thu, Mar 20, 2014 at 8:51 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Atri Sharma atri.j...@gmail.com writes:
Now, why cannot we take the estimate of all the buckets behind the bucket
in which our value is present? Will that estimate not give us the
fraction
of tuples that are expected
On Fri, Mar 21, 2014 at 9:49 AM, Rajashree Mandaogane
rajashree@gmail.com wrote:
What can be done to get rid of the 'optimized out' tags while debugging?
Did you use the appropriate debugging flags when running ./configure?
Regards,
Atri
--
Regards,
Atri
*l'apprenant*
On Mon, Apr 7, 2014 at 3:41 PM, Pavel Stehule pavel.steh...@gmail.comwrote:
2014-04-07 11:59 GMT+02:00 Rajeev rastogi rajeev.rast...@huawei.com:
On 07 April 2014 12:12, Pavel Stehule wrote:
+1 for feature
Thanks
-1 for Oracle syntax - it is hardly inconsistent with Postgres
We
On Fri, Apr 18, 2014 at 7:27 AM, Peter Geoghegan p...@heroku.com wrote:
A way I have in mind about eviction policy is to introduce a way to have an
ageing factor in each buffer and take the ageing factor into consideration
when evicting a buffer.
Consider a case where a table is pretty huge and
On Sat, Apr 19, 2014 at 1:07 AM, Bruce Momjian br...@momjian.us wrote:
On Fri, Apr 18, 2014 at 04:46:31PM +0530, Atri Sharma wrote:
This can be changed by introducing an ageing factor that sees how much
time the
current buffer has spend in shared buffers. If the time that the buffer
has
Yes, we obviously want a virtual clock. Focusing on the use of gettimeofday
seems silly to me: it was something quick for the prototype.
The problem with the clocksweeps is they don’t actually track the
progression of “time” within the PostgreSQL system.
What’s wrong with using a transaction
On Sat, Apr 19, 2014 at 3:37 AM, Bruce Momjian br...@momjian.us wrote:
One thing that I discussed with Merlin offline and am now concerned
about is
how will the actual eviction work. We cannot traverse the entire list
and then
find all the buffers with refcount 0 and then do another
On Tue, Apr 22, 2014 at 12:59 PM, Albe Laurenz laurenz.a...@wien.gv.atwrote:
Jason Petersen wrote:
Yes, we obviously want a virtual clock. Focusing on the use of
gettimeofday seems silly to me: it was
something quick for the prototype.
The problem with the clocksweeps is they don’t
The plain UNION code supports either sorting or hashing, but
we've not gotten around to supporting a sort-based approach
to recursive UNION. I'm not convinced that it's worth doing ...
regards, tom lane
Without sorting, isnt the scope of a recursive UNION with
On Fri, May 2, 2014 at 10:07 AM, Rajmohan C csrajmo...@gmail.com wrote:
Hi,
I want to know is there a way to use a hook to modify the input query
before Postgresql parses and builds the parse tree for the query.
Uh...the rewriter?
--
Regards,
Atri
*l'apprenant*
Congrats Andres!
On Fri, May 23, 2014 at 7:54 AM, Fabrízio de Royes Mello
fabriziome...@gmail.com wrote:
Hi All,
At the Developer Meeting that occurred 21th May 2014 was announced a new
PostgreSQL commiter [1], Mr. Andres Freund.
I had the opportunity to work and be mentored by him. He
On Mon, Jun 16, 2014 at 11:28 AM, Michael Paquier michael.paqu...@gmail.com
wrote:
On Mon, May 26, 2014 at 6:23 AM, Ronan Dunklau ronan.dunk...@dalibo.com
wrote:
Le dimanche 25 mai 2014 12:41:18 David Fetter a écrit :
On Fri, May 23, 2014 at 10:08:06PM +0200, Ronan Dunklau wrote:
Hello,
On Tue, Jul 1, 2014 at 4:54 AM, Tomas Vondra t...@fuzzy.cz wrote:
On 30.6.2014 23:12, Tomas Vondra wrote:
Hi,
attached is v5 of the patch. The main change is that scaling the number
of buckets is done only once, after the initial hash table is build. The
main advantage of this is lower
On Thu, Jul 3, 2014 at 11:40 PM, Stephen Frost sfr...@snowman.net wrote:
Tomas,
* Tomas Vondra (t...@fuzzy.cz) wrote:
However it's likely there are queries where this may not be the case,
i.e. where rebuilding the hash table is not worth it. Let me know if you
can construct such query (I
On Tue, Jul 22, 2014 at 10:53 AM, Rajmohan C csrajmo...@gmail.com wrote:
How do I modify PostgreSQL 9.3 source to skip certain join combinations
(skip building certain paths in path tree) by checking some condition
have a look at joinpaths.c
On Tuesday, July 22, 2014, Rohit Goyal rhtgyl...@gmail.com wrote:
Hi All,
I am working on postgresql code and having some problem. :)
I need to create shared data structure, so that different client and
connection can update and share the state of those data structures in
memory. I planned
On Thursday, August 14, 2014, Jeff Davis pg...@j-davis.com wrote:
On Thu, 2014-08-14 at 10:06 -0400, Tom Lane wrote:
If you're following the HashJoin model, then what you do is the same
thing
it does: you write the input tuple back out to the pending batch file for
the hash partition that
On Thu, Aug 14, 2014 at 10:21 PM, Tomas Vondra t...@fuzzy.cz wrote:
On 14 Srpen 2014, 18:02, Atri Sharma wrote:
On Thursday, August 14, 2014, Jeff Davis pg...@j-davis.com wrote:
On Thu, 2014-08-14 at 10:06 -0400, Tom Lane wrote:
If you're following the HashJoin model, then what you do
On Saturday, August 30, 2014, Amit Kapila amit.kapil...@gmail.com wrote:
On Sat, Aug 30, 2014 at 11:56 AM, Jeff Janes jeff.ja...@gmail.com
javascript:_e(%7B%7D,'cvml','jeff.ja...@gmail.com'); wrote:
If you insert tuples with COPY into a table created or truncated in the
same transaction,
On Sun, Aug 31, 2014 at 9:07 PM, Erik Rijkers e...@xs4all.nl wrote:
On Tue, August 26, 2014 14:24, Andrew Gierth wrote:
Erik == Erik Rijkers e...@xs4all.nl writes:
They apply cleanly for me at 2bde297 whether with git apply or
patch, except for the contrib one (which you don't need
On Sunday, August 31, 2014, Andres Freund and...@2ndquadrant.com wrote:
On 2014-08-31 21:09:59 +0530, Atri Sharma wrote:
On Sun, Aug 31, 2014 at 9:07 PM, Erik Rijkers e...@xs4all.nl
javascript:; wrote:
I have found that the unrecognized node type error is caused by:
It's a warning
On Thursday, September 4, 2014, Bruce Momjian br...@momjian.us wrote:
On Thu, Sep 4, 2014 at 08:37:08AM -0400, Robert Haas wrote:
The main problem I see here is that accurate costing may require a
round-trip to the remote server. If there is only one path that is
probably OK; the cost of
On Thu, Sep 4, 2014 at 9:26 PM, Bruce Momjian br...@momjian.us wrote:
On Thu, Sep 4, 2014 at 08:41:43PM +0530, Atri Sharma wrote:
On Thursday, September 4, 2014, Bruce Momjian br...@momjian.us wrote:
On Thu, Sep 4, 2014 at 08:37:08AM -0400, Robert Haas wrote:
The main
On Thu, Sep 4, 2014 at 9:33 PM, Bruce Momjian br...@momjian.us wrote:
On Thu, Sep 4, 2014 at 09:31:20PM +0530, Atri Sharma wrote:
I am thinking we would eventually have to cache the statistics, then
get
some kind of invalidation message from the foreign server. I am also
On Fri, Sep 5, 2014 at 2:20 AM, Robert Haas robertmh...@gmail.com wrote:
On Thu, Sep 4, 2014 at 11:56 AM, Bruce Momjian br...@momjian.us wrote:
I am thinking eventually we will need to cache the foreign server
statistics on the local server.
Wouldn't that lead to issues where the
On Sat, Sep 13, 2014 at 11:06 PM, Rohit Goyal rhtgyl...@gmail.com wrote:
Hi All,
I want to work on the code of intermediate dataset of select and update
query.
For example.
Rohit's salary has been updated 4 times, so it has 4 different version of
salary.
I want to select salary of
On Sat, Sep 13, 2014 at 11:52 PM, David G Johnston
david.g.johns...@gmail.com wrote:
Atri Sharma wrote
On Sat, Sep 13, 2014 at 11:06 PM, Rohit Goyal lt;
Or rather even if you want to be able to reference the older versions of
that record there is nothing in PostgreSQL to facilitate
On Sunday, September 14, 2014, Mark Kirkwood mark.kirkw...@catalyst.net.nz
wrote:
On 14/09/14 05:36, Rohit Goyal wrote:
Hi All,
I want to work on the code of intermediate dataset of select and update
query.
For example.
Rohit's salary has been updated 4 times, so it has 4 different
On Sun, Sep 14, 2014 at 1:30 PM, Mark Kirkwood
mark.kirkw...@catalyst.net.nz wrote:
On 14/09/14 19:25, Atri Sharma wrote:
On Sunday, September 14, 2014, Mark Kirkwood
mark.kirkw...@catalyst.net.nz mailto:mark.kirkw...@catalyst.net.nz
wrote:
On 14/09/14 05:36, Rohit Goyal wrote
On Sun, Sep 14, 2014 at 1:30 PM, Mark Kirkwood
mark.kirkw...@catalyst.net.nz wrote:
On 14/09/14 19:25, Atri Sharma wrote:
On Sunday, September 14, 2014, Mark Kirkwood
mark.kirkw...@catalyst.net.nz mailto:mark.kirkw...@catalyst.net.nz
wrote:
On 14/09/14 05:36, Rohit Goyal wrote
Hi All,
Please find attached a patch which implements support for UPDATE table1
SET(*)=...
The patch supports both UPDATE table SET(*)=(a,b,c) and UPDATE table1
SET(*)=(SELECT a,b,c FROM...).
It solves the problem of doing UPDATE from a record variable of the same
type as the table e.g. update
On Wednesday, October 15, 2014, Marti Raudsepp ma...@juffo.org wrote:
Hi
On Wed, Oct 15, 2014 at 11:02 AM, Atri Sharma atri.j...@gmail.com
javascript:; wrote:
Please find attached a patch which implements support for UPDATE table1
SET(*)=...
I presume you haven't read Tom Lane's
On Wed, Oct 15, 2014 at 2:18 PM, Atri Sharma atri.j...@gmail.com wrote:
On Wednesday, October 15, 2014, Marti Raudsepp ma...@juffo.org wrote:
Hi
On Wed, Oct 15, 2014 at 11:02 AM, Atri Sharma atri.j...@gmail.com
wrote:
Please find attached a patch which implements support for UPDATE
On Fri, Oct 17, 2014 at 7:45 PM, Merlin Moncure mmonc...@gmail.com wrote:
On Wed, Oct 15, 2014 at 3:48 AM, Atri Sharma atri.j...@gmail.com wrote:
On Wednesday, October 15, 2014, Marti Raudsepp ma...@juffo.org wrote:
Hi
On Wed, Oct 15, 2014 at 11:02 AM, Atri Sharma atri.j
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