On 22/11/12 12:15, Greg Smith wrote:
On 11/8/12 2:16 PM, Josh Berkus wrote:
Also, logging only the long-running queries is less useful than people
on this list seem to think. When I'm doing real performance analysis, I
need to see *everything* which was run, not just the slow stuff. Often
On 20/12/12 14:57, Josh Kupershmidt wrote:
CREATE TABLE test (id int);
CREATE INDEX test_idx1 ON test (id);
CREATE INDEX test_idx2 ON test (id);
I initially misread your example code, but after I realised my mistake,
I thought of an alternative scenario that might be worth considering.
CREATE
On 29/12/12 10:19, Peter Eisentraut wrote:
On 12/28/12 11:22 AM, Pavel Stehule wrote:
I am not sure, but maybe is time to introduce ANSI SQL syntax for
functions' named parameters
It is defined in ANSI SQL 2011
CALL P (B = 1, A = 2)
instead PostgreSQL syntax CALL ( B := 1, A := 2)
I agree
On 30/12/12 05:24, Tom Lane wrote:
Andres Freund and...@2ndquadrant.com writes:
On 2012-12-29 07:23:24 -0500, Peter Eisentraut wrote:
The xlog code uses two different time zone formats at various times.
One is a pg_time_t (stored in pg_control/ControlFileData), the other is
a TimestampTz.
On 16/01/13 08:04, David Fetter wrote:
On Mon, Jan 14, 2013 at 07:52:56PM -0500, Andrew Dunstan wrote:
On 01/14/2013 07:36 PM, Merlin Moncure wrote:
While testing this I noticed that integer based 'get' routines are
zero based -- was this intentional? Virtually all other aspects of
SQL are 1
On 16/01/13 11:14, Bruce Momjian wrote:
I mentioned last year that I wanted to start working on parallelism:
https://wiki.postgresql.org/wiki/Parallel_Query_Execution
Years ago I added thread-safety to libpq. Recently I added two parallel
execution paths to pg_upgrade. The first
On 22/01/13 22:35, Dimitri Fontaine wrote:
Tom Lane t...@sss.pgh.pa.us writes:
In this connection I refer you to Sturgeon's Law(*): 90% of everything
is crud. Applied to our problem, it says that 90% of all patch ideas
are bad. Therefore, we should be expecting to reject a large fraction
of
On 23/01/13 16:02, Robert Haas wrote:
On Tue, Jan 22, 2013 at 11:38 AM, Thom Brown t...@linux.com wrote:
...unless I've coincidentally stumbled upon the new MEOW LIKE A CAT
command coming in 9.3. ;)
+1 for adding that. I've been wanting it for years.
Can we have it back ported to 9.2,
On 24/01/13 07:45, Alvaro Herrera wrote:
Andres Freund escribió:
I somewhat dislike the fact that CONCURRENTLY isn't really concurrent
here (for the listeners: swapping the indexes acquires exlusive locks) ,
but I don't see any other naming being better.
REINDEX ALMOST CONCURRENTLY?
On 17/08/12 03:45, Bruce Momjian wrote:
On Thu, Aug 16, 2012 at 10:38:09AM -0500, Kevin Grittner wrote:
Heikki Linnakangas heikki.linnakan...@enterprisedb.com wrote:
On 16.08.2012 17:49, Bruce Momjian wrote:
Heikki Linnakangas wrote:
On 16.08.2012 17:36, Bruce Momjian wrote:
In docs, change
On 22/08/12 02:16, Kevin Grittner wrote:
Jeff Davis pg...@j-davis.com wrote:
On Mon, 2012-08-20 at 19:32 -0500, Kevin Grittner wrote:
Josh Berkus j...@agliodbs.com wrote:
This is sounding like a completely runaway spec on what should
be a simple feature.
I hate to contribute to scope
On 22/08/12 10:56, Kevin Grittner wrote:
Josh Berkus j...@agliodbs.com wrote:
First, note the change in topic.
This whole discussion has gone rather far afield from Miroslav's
original submission, which was for temporal tables, which is NOT
the same thing as audit logs, although the use
On 29/08/12 23:34, Robert Haas wrote:
On Wed, Aug 29, 2012 at 12:27 AM, Tom Lane t...@sss.pgh.pa.us wrote:
To put some concreteness into what so far has been a pretty hand-wavy
discussion, I experimented with the attached patch. I'm not sure that
it exactly corresponds to what you proposed, but
On 25/09/12 02:41, Heikki Linnakangas wrote:
On 24.09.2012 17:24, Tom Lane wrote:
Heikki Linnakangashlinnakan...@vmware.com writes:
This seems pretty much ready to commit. One tiny detail that I'd
like to
clarify: the docs say:
Multiple files within an include directory are ordered by an
On 27/09/12 02:59, Christopher Browne wrote:
On Wed, Sep 26, 2012 at 10:02 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Daniel Farina dan...@heroku.com writes:
On Tue, Sep 25, 2012 at 10:55 PM, Jaime Casanova ja...@2ndquadrant.com wrote:
The definition of information_schema.triggers contains this:
On 09/10/12 03:53, Robert Haas wrote:
On Mon, Oct 8, 2012 at 3:49 AM, Julien Tachoires jul...@gmail.com wrote:
2012/10/8 Tom Lane t...@sss.pgh.pa.us:
Julien Tachoires jul...@gmail.com writes:
About \ds behaviour, I think to add 2 columns :
- 'LastValue'
- 'Increment'
That would make the
On 10/10/12 09:35, Peter Eisentraut wrote:
On 10/9/12 5:09 AM, Simon Riggs wrote:
Anyone want to check for any other missing IF EXISTS capability in other DDL?
TRUNCATE is not really DDL. If we allow TRUNCATE IF EXISTS, what is
stopping someone from requesting DELETE IF EXISTS or INSERT IF
On 28/10/12 07:41, Heikki Linnakangas wrote:
On 27.10.2012 16:43, Tom Lane wrote:
Jan Wieckjanwi...@yahoo.com writes:
The reason why we need full_page_writes is that we need to guard
against
torn pages or partial writes. So what if smgr would manage a mapping
between logical page numbers and
On 14/11/12 04:32, Merlin Moncure wrote:
On Tue, Nov 13, 2012 at 9:03 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Ok. It won't help all that much on 9.0, though.
Well, it won't help GIST much, but the actually-reported-from-the-field
case is in btree, and it does fix that.
It occurs to me that if
On 08/07/11 18:21, Darren Duncan wrote:
Jeff Davis wrote:
On Thu, 2011-07-07 at 20:56 -0700, Darren Duncan wrote:
When you create a temporary table, PostgreSQL needs to add rows in
pg_class, pg_attribute, and probably other system catalogs. So
there are
writes, which aren't possible in a
On 01/02/13 13:26, Andrew Dunstan wrote:
On 01/31/2013 07:16 PM, David E. Wheeler wrote:
On Jan 31, 2013, at 2:20 PM, Andrew Dunstan and...@dunslane.net wrote:
I'm happy to take opinions about this, and I expected some
bikeshedding, but your reaction is contrary to everything others
have
On 03/02/13 15:08, Christopher Browne wrote:
On Sat, Feb 2, 2013 at 2:54 PM, Robert Haas robertmh...@gmail.com wrote:
On Sat, Feb 2, 2013 at 1:49 PM, Andres Freund and...@2ndquadrant.com wrote:
You're right, this doesn't work superbly well, especially for
insert-only tables... But imo the
On 04/02/13 21:55, Pavel Stehule wrote:
2013/1/2 Robert Haas robertmh...@gmail.com:
On Fri, Dec 28, 2012 at 11:22 AM, Pavel Stehule pavel.steh...@gmail.com wrote:
I am not sure, but maybe is time to introduce ANSI SQL syntax for
functions' named parameters
It is defined in ANSI SQL 2011
I thought this might be of interest...
http://blog.documentfoundation.org/2013/02/07/the-document-foundation-announces-libreoffice-4-0/
[...]
Improved code contribution thanks to Gerrit: a web based code review
system, facilitating the task for projects using Git version control
system
Well I would much prefer to find out sooner rather than later that there
is a problem, so I would much prefer know I've created a duplicate as
soon as the system can detect it. In general, Postgresql appears much
better at this than MySQL
On 09/03/13 10:01, Alvaro Herrera wrote:
Hannu
On 14/03/13 02:02, Andrew Dunstan wrote:
On 03/13/2013 08:17 AM, Robert Haas wrote:
On Fri, Mar 8, 2013 at 4:42 PM, Andrew Dunstan and...@dunslane.net
wrote:
So my order of preference for the options would be:
1. Have the JSON type collapse objects so the last instance of a
key wins
and is
On 27/03/13 06:14, Darren Duncan wrote:
On 2013.03.26 1:40 AM, Albe Laurenz wrote:
Darren Duncan wrote:
So, determining if 2 rows are the same involves an iteration of
dyadic logical
AND over the predicates for each column comparison. Now logical AND
has an
identity value, which is TRUE,
On 29/03/13 13:12, Brendan Jurd wrote:
On 28 March 2013 20:34, Dean Rasheed dean.a.rash...@gmail.com wrote:
Is the patch also going to allow empty arrays in higher dimensions
where not just the last dimension is empty?
It doesn't allow that at present.
It seems as though, if
it's allowing
On 04/04/13 03:02, Florian Pflug wrote:
On Apr3, 2013, at 15:30 , Andrew Dunstan and...@dunslane.net wrote:
On 04/02/2013 02:46 PM, Florian Pflug wrote:
If we're going to break compatibility, we should IMHO get rid of
non-zero lower bounds all together. My guess is that the number of
affected
On 04/04/13 04:58, Pavel Stehule wrote:
2013/4/3 Gavin Flower gavinflo...@archidevsys.co.nz
mailto:gavinflo...@archidevsys.co.nz
On 04/04/13 03:02, Florian Pflug wrote:
On Apr3, 2013, at 15:30 , Andrew Dunstan and...@dunslane.net
mailto:and...@dunslane.net wrote
On 04/04/13 05:21, Pavel Stehule wrote:
Pavel
ALOGOL 60 was zero based by default, as I remember
deliberately setting the lower bound to 1, I managed to avoid
PASCAL and I only glanced at ADA.
On 04/04/13 05:30, Tom Lane wrote:
Zero as the default lower bound is consistent with most languages
(especially the common ones like C, C++, Java, Python), in fact
I don't remember any language where that is not the case (ignoring
SQL) - and I've written programs in about 20 languages.
On 04/04/13 05:36, David E. Wheeler wrote:
On Apr 3, 2013, at 9:30 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Fortran ... Basic ... actually I'd have thought that zero was a
minority position. Fashions change I guess.
I say we turn the default lower bound up to 11.
David
In keeping with the
On 04/04/13 07:58, Kevin Grittner wrote:
Gavin Flower gavinflo...@archidevsys.co.nz wrote:
Anyhow, I think we should standardise on zero as the initial
index to be as consistent as practicable.
If you want to suggest a default of zero for the first subscript of
an array in SQL, please don't
On 04/04/13 11:55, Jim Nasby wrote:
On 4/3/13 10:34 AM, Gavin Flower wrote:
Maybe we should adopt the famous compromise of '0.5'?
+0.5. ;P
Far too positive for our grim world! How about '-0,5' instead? :-)
I notice you call yourself a 'Data Architect' - never too sure If I
should call
On 06/04/13 11:14, Tom Lane wrote:
After quite a bit of hair-pulling trying to install Fedora 19 Alpha,
I've been able to reproduce the initdb-time failure that's currently
being seen on buildfarm member anchovy, and was also complained of
recently by an end user:
On 09/04/13 08:41, Peter Eisentraut wrote:
On 4/5/13 6:14 PM, Tom Lane wrote:
Since gcc 4.8 is going to be on a lot of people's machines pretty soon,
I think we need to do something to prevent it from breaking 8.4.x and
9.0.x. It looks like our choices are (1) teach configure to enable
On 10/04/13 09:40, Dickson S. Guedes wrote:
2013/4/9 Bert bier...@gmail.com:
So I'll just monitor the mailing list a bit, pick some patches and test
them. I think this is the best way to learn to know the code, and is
probably helpful for everyone?
Plus to that you can start reading some
On 26/04/13 18:53, Daniel Farina wrote:
On Thu, Apr 25, 2013 at 9:34 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Alvaro Herrera alvhe...@2ndquadrant.com writes:
Tom Lane wrote:
I think I've heard of scripts grepping the output of pg_controldata for
this that or the other. Any rewording of the
On 27/04/13 02:48, Tom Lane wrote:
Robert Haas robertmh...@gmail.com writes:
On Thu, Apr 25, 2013 at 1:56 PM, Tom Lane t...@sss.pgh.pa.us wrote:
However, the documentation in libpq.sgml is a bit bogus too, because it
counsels trying the PQputCopyEnd() call again, which will not work
(since we
On 30/04/13 12:33, Любен Каравелов wrote:
- Цитат от Christopher Browne (cbbro...@gmail.com), на 29.04.2013 в 23:18
-
The one place where I *could* see a special type having a contribution
is for there to be a data type that can contain an arbitrary number of
links. That means you
On 02/05/13 15:23, Peter Eisentraut wrote:
On Wed, 2013-05-01 at 18:27 +0200, Fabien COELHO wrote:
I must admit that there is a bit of a disappointement as far as the
user experience is concerned: the generated file is barely usable on
an iPad2 with the default iBooks reader, which was clearly
On 03/05/13 04:52, David Fetter wrote:
On Thu, May 02, 2013 at 06:28:53PM +0200, Andres Freund wrote:
On 2013-05-02 12:23:19 -0400, Tom Lane wrote:
Marko Tiikkaja ma...@joh.to writes:
What I'm more interested in is: how can we make this feature work in
PL/PgSQL where OLD means something
On 03/05/13 15:16, Peter Eisentraut wrote:
On Wed, 2013-05-01 at 18:27 +0200, Fabien COELHO wrote:
The table of contents too much detailed, so it is long and slow to
scan, and there is no clear shortcut. Flipping pages in the
documentation takes ages (well, close to one second or more if I flip
On 04/05/13 18:11, Fabien COELHO wrote:
I don't think we should be governed by the silly behaviour of one
epub reader. My ereader doesn't collapse the contents into one giant
list. If ibooks is doing stuff badly, complain to Apple.
Indeed that makes sense as the issue is specific to this
On 05/05/13 10:41, Kevin Grittner wrote:
[...]
removing unlogged matviews for 9.3
[...]
So you are going to unlog the unlogged matviews from 9.3? :-)
More seriously, I think this will result in a better solution for 9.4 -
as it seems to me to be too rushed to fix it now
Cheers,
Gavin.
On 05/05/13 17:35, Tom Lane wrote:
Bruce Momjian br...@momjian.us writes:
OK, so we can either use 4 hex digits minimum and have a fixed with on
most platforms, extend it to 8 hex digits, or revert the entire
fixed-width idea.
I think we should lose the idea that it's fixed-width. 16-bit PIDs
On 22/05/13 09:13, Simon Riggs wrote:
I worked up a small patch to support Terabyte setting for memory.
Which is OK, but it only works for 1TB, not for 2TB or above.
Which highlights that since we measure things in kB, we have an
inherent limit of 2047GB for our memory settings. It isn't beyond
On 28/05/13 11:48, Craig Ringer wrote:
On 05/27/2013 05:45 PM, Michael Paquier wrote:
On Mon, May 27, 2013 at 2:01 PM, Craig Ringercr...@2ndquadrant.com wrote:
On 05/25/2013 05:39 PM, Simon Riggs wrote:
- Switching to single-major-version release numbering. The number of
people who say
On 11/06/13 19:24, Hannu Krosing wrote:
On 06/10/2013 10:37 PM, FredDaniPandoraAquiles wrote:
Hi,
I asked a while ago in this group about the possibility to
implement a
parallel planner in a multithread way, and the replies were
that the
proposed approach couldn't be
On 04/07/13 01:31, Robert Haas wrote:
On Wed, Jul 3, 2013 at 4:18 AM, KONDO Mitsumasa
kondo.mitsum...@lab.ntt.co.jp wrote:
I tested and changed segsize=0.25GB which is max partitioned table file size and
default setting is 1GB in configure option (./configure --with-segsize=0.25).
Because I
On 20/08/13 15:26, Tom Lane wrote:
I will be taking a long (and long-overdue) vacation from Sep 10 to Oct 20.
I expect to have email access, but won't be doing much more than minimally
keeping up with my inbox.
This means I'll be pretty much AWOL for the September commitfest :-(.
That's
On 05/09/13 08:26, Robert Haas wrote:
On Sat, Aug 31, 2013 at 2:34 PM, Andres Freund and...@2ndquadrant.com wrote:
After some thinking I don't think any solution primarily based on
holding page level locks across other index operations is going to scale
ok.
I'd like to chime in with a large +1
On 06/09/13 13:10, Robert Haas wrote:
On Thu, Sep 5, 2013 at 8:14 PM, Bruce Momjian br...@momjian.us wrote:
Actually, I now realize it is more complex than that, and worse. There
are several questions to study to understand when pg_class.relallvisible
is updated (which is used to determine if
On 22/10/13 02:56, Heikki Linnakangas wrote:
On 21.10.2013 16:15, Peter Eisentraut wrote:
On 10/21/13 1:31 AM, Andres Freund wrote:
The point of the CF is exactly that all
patches get at least one good round of review. Moving unreviewed
patches
to the next CF will let them just suffer the
On 22/10/13 00:17, KONDO Mitsumasa wrote:
(2013/10/18 22:21), Andrew Dunstan wrote:
If we're going to extend pg_stat_statements, even more than min and max
I'd like to see the standard deviation in execution time.
OK. I do! I am making some other patches, please wait more!
Regards,
--
On 22/10/13 09:01, Tom Lane wrote:
Gavin Flower gavinflo...@archidevsys.co.nz writes:
If we're going to extend pg_stat_statements, even more than min and max
I'd like to see the standard deviation in execution time.
How about the 'median', often a lot more useful than the 'arithmetic
mean
On 22/10/13 13:26, Ants Aasma wrote:
On Tue, Oct 22, 2013 at 1:09 AM, Alvaro Herrera
alvhe...@2ndquadrant.com wrote:
Gavin Flower wrote:
One way it could be done, but even this would consume far too much
storage and processing power (hence totally impractical), would be
to 'simply' store
On 22/10/13 13:26, Ants Aasma wrote:
On Tue, Oct 22, 2013 at 1:09 AM, Alvaro Herrera
alvhe...@2ndquadrant.com wrote:
Gavin Flower wrote:
One way it could be done, but even this would consume far too much
storage and processing power (hence totally impractical), would be
to 'simply' store
On 22/10/13 22:56, Dimitri Fontaine wrote:
Tom Lane t...@sss.pgh.pa.us writes:
Hm. It's been a long time since college statistics, but doesn't the
entire concept of standard deviation depend on the assumption that the
underlying distribution is more-or-less normal (Gaussian)? Is there a
I
On 24/10/13 10:34, Marc Mamin wrote:
Oscillating plan changes may fit multimodal but I don't feel that's
typical. My experience has been it's either an extremely rare plan
difference or it's a shift from one plan to another over time.
After all, all of avg, min, max and stdev are only
On 24/10/13 11:26, Peter Geoghegan wrote:
On Wed, Oct 23, 2013 at 2:57 PM, Gavin Flower
gavinflo...@archidevsys.co.nz wrote:
Looks definitely bimodal in the log version, very clear!
Yes, I feel that having a 32 log binary binned histogram (as Alvaro Herrera
suggested) would be very useful
On 24/10/13 12:00, Gavin Flower wrote:
On 24/10/13 11:26, Peter Geoghegan wrote:
On Wed, Oct 23, 2013 at 2:57 PM, Gavin Flower
gavinflo...@archidevsys.co.nz wrote:
Looks definitely bimodal in the log version, very clear!
Yes, I feel that having a 32 log binary binned histogram (as Alvaro
On 24/10/13 12:14, Jeff Janes wrote:
On Wed, Oct 23, 2013 at 4:00 PM, Gavin Flower
gavinflo...@archidevsys.co.nz mailto:gavinflo...@archidevsys.co.nz
wrote:
On 24/10/13 11:26, Peter Geoghegan wrote:
On Wed, Oct 23, 2013 at 2:57 PM, Gavin Flower
gavinflo
On 24/10/13 12:24, Peter Geoghegan wrote:
On Wed, Oct 23, 2013 at 4:14 PM, Jeff Janes jeff.ja...@gmail.com wrote:
The last bucket would be limited to 8ms x = 16 ms. If you find something
16ms, then you have to rescale *before* you increment any of the buckets.
Once you do, there is now room
On 24/10/13 12:46, Josh Berkus wrote:
On 10/23/2013 01:26 PM, Peter Geoghegan wrote:
So fixing that problem would go a long
way towards resolving these concerns. It would also probably have the
benefit of making it possible for query texts to be arbitrarily long -
we'd be storing them in files
On 24/10/13 12:58, Peter Geoghegan wrote:
On Wed, Oct 23, 2013 at 4:48 PM, Gavin Flower
gavinflo...@archidevsys.co.nz wrote:
32 int64 buckets is only 256 bytes, so a thousand histograms would be less
than a quarter of a MB. Any machine that busy, would likely have many GB's
of RAM. I have 32
On 31/10/13 06:46, Jeff Janes wrote:
On Wed, Oct 30, 2013 at 9:54 AM, Leonardo Francalanci
m_li...@yahoo.it mailto:m_li...@yahoo.it wrote:
Jeff Janes wrote
The index insertions should be fast until the size of the active
part of
the indexes being inserted into exceeds
On 03/11/13 20:37, David Rowley wrote:
I've just been looking at how alignment of columns in tuples can make
the tuple larger than needed.
I created 2 tables... None of which are very real world, but I was
hunting for the extremes here...
The first table contained an int primary key and
On 05/11/13 05:35, Robert Haas wrote:
On Mon, Nov 4, 2013 at 11:32 AM, Andres Freund and...@2ndquadrant.com wrote:
I think doing this outside of s_b will make stuff rather hard for
physical replication and crash recovery since we either will need to
flush the whole buffer at checkpoints - which
On 14/11/13 02:45, Peter Eisentraut wrote:
The commit fest manager mace has been passed on to me[*]. More to follow.
[*] Actually, I found it behind the dumpster in the alley.
Did you take care not to touch it with bare skin properly sterilize
it? As a used mace, may pick up blood from
On 14/11/13 11:33, Andrew Dunstan wrote:
On 11/13/2013 04:58 PM, Merlin Moncure wrote:
On Wed, Nov 13, 2013 at 1:25 PM, Andrew Dunstan and...@dunslane.net
wrote:
On 11/13/2013 11:37 AM, Merlin Moncure wrote:
Yes. and I think this is one of the major advantages of the json API
vs hstore: you
On 18/11/13 09:02, David E. Wheeler wrote:
On Nov 16, 2013, at 2:04 PM, Hannu Krosing ha...@2ndquadrant.com wrote:
It’s still input and output as JSON, though.
Yes, because JavaScript Object Notation *is* a serialization format
(aka Notation) for converting JavaScript Objects to text format
On 18/11/13 09:45, David Johnston wrote:
David E. Wheeler-3 wrote
I like JSONB because:
1. The B means binary
2. The B means second
3. It's short
4. See also BYTEA.
json_strict :
Not sure about the bytea reference off-hand...
I was pondering jsons which meets the short property just fine
On 18/11/13 14:51, David E. Wheeler wrote:
On Nov 17, 2013, at 5:49 PM, Josh Berkus j...@agliodbs.com wrote:
Jstore isn't the worst name suggestion I've heard on this thread. The
reason I prefer JSONB though, is that a new user looking for a place to
put JSON data will clearly realize that
On 20/11/13 05:14, Robert Haas wrote:
On Thu, Nov 14, 2013 at 2:54 PM, Hannu Krosing ha...@2ndquadrant.com wrote:
I am sure you could also devise an json encoding scheme
where white space is significant ;)
I don't even have to think hard. If you want your JSON to be
human-readable, it's
On 20/11/13 23:43, Haribabu kommi wrote:
On 19 November 2013 19:12 Fujii Masao wrote:
On Tue, Nov 19, 2013 at 9:14 PM, Haribabu kommi
haribabu.ko...@huawei.com wrote:
On 18 November 2013 23:30 Fujii Masao wrote:
On Tue, Nov 19, 2013 at 12:01 AM, Haribabu kommi
haribabu.ko...@huawei.com wrote:
On 08/12/13 10:27, Greg Stark wrote:
On Sat, Dec 7, 2013 at 8:25 PM, Josh Berkus j...@agliodbs.com wrote:
The only approach which makes sense is to base it on a % of the table.
In fact, pretty much every paper which has examined statistics
estimation for database tables has determined that any
On 12/12/13 06:22, Tom Lane wrote:
I wrote:
Hm. You can only take N rows from a block if there actually are at least
N rows in the block. So the sampling rule I suppose you are using is
select up to N rows from each sampled block --- and that is going to
favor the contents of blocks
On 12/12/13 06:22, Tom Lane wrote:
I wrote:
Hm. You can only take N rows from a block if there actually are at least
N rows in the block. So the sampling rule I suppose you are using is
select up to N rows from each sampled block --- and that is going to
favor the contents of blocks
On 12/12/13 07:22, Gavin Flower wrote:
On 12/12/13 06:22, Tom Lane wrote:
I wrote:
Hm. You can only take N rows from a block if there actually are at
least
N rows in the block. So the sampling rule I suppose you are using is
select up to N rows from each sampled block --- and that is going
On 12/12/13 08:14, Gavin Flower wrote:
On 12/12/13 07:22, Gavin Flower wrote:
On 12/12/13 06:22, Tom Lane wrote:
I wrote:
Hm. You can only take N rows from a block if there actually are at
least
N rows in the block. So the sampling rule I suppose you are using is
select up to N rows from
On 12/12/13 08:31, Kevin Grittner wrote:
Gavin Flower gavinflo...@archidevsys.co.nz wrote:
For example, assume 1000 rows of 200 bytes and 1000 rows of 20 bytes,
using 400 byte pages. In the pathologically worst case, assuming
maximum packing density and no page has both types: the large rows
On 12/12/13 08:39, Gavin Flower wrote:
On 12/12/13 08:31, Kevin Grittner wrote:
Gavin Flower gavinflo...@archidevsys.co.nz wrote:
For example, assume 1000 rows of 200 bytes and 1000 rows of 20 bytes,
using 400 byte pages. In the pathologically worst case, assuming
maximum packing density
On 12/12/13 09:12, Gavin Flower wrote:
On 12/12/13 08:39, Gavin Flower wrote:
On 12/12/13 08:31, Kevin Grittner wrote:
Gavin Flower gavinflo...@archidevsys.co.nz wrote:
For example, assume 1000 rows of 200 bytes and 1000 rows of 20 bytes,
using 400 byte pages. In the pathologically worst
On 18/12/13 05:26, Bruce Momjian wrote:
On Tue, Dec 17, 2013 at 09:51:30AM -0500, Robert Haas wrote:
On Sun, Dec 15, 2013 at 5:10 PM, James Cloos cl...@jhcloos.com wrote:
For reference, see:
https://wiki.mozilla.org/Security/Server_Side_TLS
for the currently suggested suite for TLS
On 18/12/13 10:48, Andrew Dunstan wrote:
On 12/17/2013 04:42 PM, Kevin Grittner wrote:
Josh Berkus j...@agliodbs.com wrote:
On 11/15/2013 05:41 AM, Heikki Linnakangas wrote:
A fundamental problem with this is that it needs to handle isolation
reliable, so that the assertion cannot be
On 20/12/13 09:36, Peter Geoghegan wrote:
On Thu, Nov 21, 2013 at 9:13 AM, Heikki Linnakangas
hlinnakan...@vmware.com wrote:
So what I'd actually like to see is \setgaussian, for use in custom scripts.
+1. I'd really like to be able to run a benchmark with a Gaussian and
uniform distribution
On 21/12/13 06:29, Josh Berkus wrote:
Pavel,
So constructor should to look like:
CREATE OR REPLACE FUNCTION make_interval(years int DEFAULT 0, months int
DEFAULT 0, ...)
and usage:
SELECT make_interval(years := 2)
SELECT make_interval(days := 14)
Is there a interest for this (or similar)
On 21/12/13 13:40, Josh Berkus wrote:
On 12/20/2013 03:09 PM, Gavin Flower wrote:
What about leap years?
What about them?
some years have 365 days others have 366, so how any days in an interval
of 2 years?, 4 years?
--
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On 10/01/14 12:41, David Fetter wrote:
[..]
David (who is among that tiny minority who believe that arrays should
be indexed from 0.5 as a compromise ;)
Clearly we should use 1/e as the starting index, where 'e' is Euler's
constant 2.718... :-)
(Much more mathematically profound!)
Cheers,
On 10/01/14 12:55, Peter Geoghegan wrote:
On Thu, Jan 9, 2014 at 3:41 PM, David Fetter da...@fetter.org wrote:
We have dropped support, as you put it, for bigger and harder-hitting
mistakes than this. Anybody whose code has this kind of silliness in
it will be in other kinds of trouble, too.
On 13/01/14 11:44, Florian Pflug wrote:
On Jan12, 2014, at 22:37 , Pavel Stehule pavel.steh...@gmail.com wrote:
There is GUC for variable_conflict already too. In this case I would to
enable this functionality everywhere (it is tool how to simply eliminate
some kind of strange bugs) so it
On 14/01/14 14:29, Tom Lane wrote:
[...]
(2) the float and numeric variants should be implemented under
nondefault names (I'm thinking FAST_SUM(), but bikeshed away). People
who need extra speed and don't mind the slightly different results can
alter their queries to use these variants. One
On 14/01/14 14:09, Dave Chinner wrote:
On Mon, Jan 13, 2014 at 09:29:02PM +, Greg Stark wrote:
On Mon, Jan 13, 2014 at 9:12 PM, Andres Freund and...@2ndquadrant.com wrote:
[...]
The more ambitious and interesting direction is to let Postgres tell
the kernel what it needs to know to manage
On 28/01/14 16:33, Andrew Dunstan wrote:
On 01/27/2014 10:24 PM, Sawada Masahiko wrote:
Hi all,
Attached patch fixes the typo which is in
src/backend/command/cluster.c.
Are you sure that's a typo? iff is usually short hand for if and
only if.
cheers
andrew
Certainly, that is how
On 03/02/14 09:44, Peter Geoghegan wrote:
On Sun, Feb 2, 2014 at 8:13 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Perhaps s/Total runtime/Execution time/ ?
+1
If the planning was ever made into a parallel process, then 'elapsed
time' would be less than the 'processor time'. So what does
On 06/02/14 16:59, Robert Haas wrote:
On Wed, Feb 5, 2014 at 6:43 AM, Heikki Linnakangas
hlinnakan...@vmware.com wrote:
So, I came up with the attached worst case test, modified from your latest
test suite.
unpatched:
testname | wal_generated | duration
On 08/02/14 19:05, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
On 2/3/14, 8:48 PM, Tom Lane wrote:
That's a very fair question. It's a reasonable bet that pretty much
nobody actually looks at the text versions of either HISTORY or
regress_README anymore. It's conceivable that
On 17/02/14 15:26, Robert Haas wrote:
On Thu, Feb 13, 2014 at 3:34 PM, Bruce Momjian br...@momjian.us wrote:
On Fri, Oct 11, 2013 at 03:39:51PM -0700, Kevin Grittner wrote:
Josh Berkus j...@agliodbs.com wrote:
On 10/11/2013 01:11 PM, Bruce Momjian wrote:
In summary, I think we need to:
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