On Tue, Jan 3, 2012 at 4:40 AM, Noah Misch n...@leadboat.com wrote:
On Tue, Jan 03, 2012 at 01:18:41AM +, Simon Riggs wrote:
Just for the record, yes we do run multiple catalog scans in some
parts of the code.
So I can see how we might trigger 4 nested scans, using cache
replacement
Pavel Stehule wrote:
here is new version of CHECK FUNCTION patch
I won't be able to review that one because I'll be in
California from Jan 6 to Jan 29.
Yours,
Laurenz Albe
--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
I'm using PL/Python, and when getting the result object from a
plpy.execute(), I can access to the result.status().
E.g.: the result.status() is 4. But to know what 4 corresponds to, I must
open the spi.h file from the sources to see :
#define SPI_OK_CONNECT 1
#define SPI_OK_FINISH 2
#define
On 12/31/2011 06:10 PM, Brar Piening wrote:
Brar Piening wrote:
Andrew Dunstan wrote:
Can you narrow down exactly what in that commit broke VS 2010? Are
there any compiler warnings?
I was able to nail down the problem.
In the absence of reaction, to keep my promise, I'm sending the
On Tue, Jan 3, 2012 at 5:55 AM, Samuel PHAN sam...@nomao.com wrote:
I'm using PL/Python, and when getting the result object from a
plpy.execute(), I can access to the result.status().
E.g.: the result.status() is 4. But to know what 4 corresponds to, I must
open the spi.h file from the
2012/1/3 Christopher Browne cbbro...@gmail.com:
On Tue, Jan 3, 2012 at 5:55 AM, Samuel PHAN sam...@nomao.com wrote:
I'm using PL/Python, and when getting the result object from a
plpy.execute(), I can access to the result.status().
E.g.: the result.status() is 4. But to know what 4
On Mon, Jan 2, 2012 at 2:53 PM, Simon Riggs si...@2ndquadrant.com wrote:
Get rid of the freelist? Once shared buffers are full, it's just about
useless anyway. But you'd need to think about the test cases that you
pay attention to, as there might be scenarios where it remains useful.
Agree
On Tue, Jan 3, 2012 at 5:47 AM, Simon Riggs si...@2ndquadrant.com wrote:
On Tue, Jan 3, 2012 at 4:40 AM, Noah Misch n...@leadboat.com wrote:
On Tue, Jan 03, 2012 at 01:18:41AM +, Simon Riggs wrote:
Just for the record, yes we do run multiple catalog scans in some
parts of the code.
So I
On Mon, Jan 2, 2012 at 12:01 PM, Pavel Stehule pavel.steh...@gmail.com wrote:
here is updated patch
I think the comments in parse_utilcmd.c probably need a bit of adjustment.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
--
Sent via pgsql-hackers
On Sat, Dec 31, 2011 at 7:36 PM, Noah Misch n...@leadboat.com wrote:
Building on commit 8f9fe6edce358f7904e0db119416b4d1080a83aa, this adds
protransform functions to the length coercions for numeric, varbit, timestamp,
timestamptz, time, timetz and interval. This mostly serves to make more
Hello
2012/1/3 Robert Haas robertmh...@gmail.com:
On Mon, Jan 2, 2012 at 12:01 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
here is updated patch
I think the comments in parse_utilcmd.c probably need a bit of adjustment.
I don't see it - there is only one comment and it is adjusted
On Tue, Jan 3, 2012 at 3:18 PM, Robert Haas robertmh...@gmail.com wrote:
The clock sweep is where all the time goes, in its current form.
...but I agree with this. In its current form, the clock sweep has to
acquire a spinlock for every buffer it touches. That's really
expensive, and I
On Tue, Jan 3, 2012 at 10:38 AM, Pavel Stehule pavel.steh...@gmail.com wrote:
Hello
2012/1/3 Robert Haas robertmh...@gmail.com:
On Mon, Jan 2, 2012 at 12:01 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
here is updated patch
I think the comments in parse_utilcmd.c probably need a bit
On Tue, Jan 3, 2012 at 3:24 PM, Robert Haas robertmh...@gmail.com wrote:
I feel like the first thing we should be doing here is some
benchmarking. If we change just the scans in dependency.c and then
try the test case Tom suggested (dropping a schema containing a large
number of functions),
On Tue, Dec 20, 2011 at 02:30:08PM +0100, Magnus Hagander wrote:
That said - can someone who knows the translation stuff better than me
comment on if this is actually going to be translatable, or if it
violates too many translation rules?
+pg_signal_backend(int pid, int sig, bool
2011/12/23 Robert Haas robertmh...@gmail.com:
On Fri, Dec 23, 2011 at 5:56 AM, Kohei KaiGai kai...@kaigai.gr.jp wrote:
I'd like the regression test on select_view test being committed also
to detect unexpected changed in the future. How about it?
Can you resend that as a separate patch? I
On Tue, Jan 3, 2012 at 10:56 AM, Simon Riggs si...@2ndquadrant.com wrote:
On Tue, Jan 3, 2012 at 3:18 PM, Robert Haas robertmh...@gmail.com wrote:
The clock sweep is where all the time goes, in its current form.
...but I agree with this. In its current form, the clock sweep has to
acquire a
On Tue, Jan 3, 2012 at 11:17 AM, Simon Riggs si...@2ndquadrant.com wrote:
On Tue, Jan 3, 2012 at 3:24 PM, Robert Haas robertmh...@gmail.com wrote:
I feel like the first thing we should be doing here is some
benchmarking. If we change just the scans in dependency.c and then
try the test case
On Sun, Jan 1, 2012 at 11:50 PM, Peter Eisentraut pete...@gmx.net wrote:
Currently, pg_dump sorts operators by name, but operators with the same
name come out in random order. A few releases ago we adjusted this for
functions, so that they are in increasing number of arguments order.
I'd like
Simon Riggs si...@2ndquadrant.com writes:
That was acceptable to *me*, so I didn't try measuring using just SnapshotNow.
We can do a lot of tests but at the end its a human judgement. Is 100%
correct results from catalog accesses worth having when the real world
speed of it is not
Noah Misch n...@leadboat.com writes:
Regarding the other message, avoid composing a translated message from
independently-translated parts.
Yes. I haven't looked at the patch, but I wonder whether it wouldn't be
better to dodge both of these problems by having the subroutine return a
On Fri, Sep 9, 2011 at 11:02 PM, Daniel Farina dan...@heroku.com wrote:
On Wed, Aug 24, 2011 at 1:04 PM, Daniel Farina dan...@heroku.com wrote:
On Wed, Aug 24, 2011 at 12:38 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Assuming the issue really is the physical unlinks (which I agree I'd
like to see
On Tue, Jan 3, 2012 at 12:55 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Simon Riggs si...@2ndquadrant.com writes:
That was acceptable to *me*, so I didn't try measuring using just
SnapshotNow.
We can do a lot of tests but at the end its a human judgement. Is 100%
correct results from catalog
Excerpts from Robert Haas's message of mar ene 03 12:24:52 -0300 2012:
I feel like the first thing we should be doing here is some
benchmarking. If we change just the scans in dependency.c and then
try the test case Tom suggested (dropping a schema containing a large
number of functions),
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 12:55 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Another point that requires some thought is that switching SnapshotNow
to be MVCC-based will presumably result in a noticeable increase in each
backend's rate of wanting to acquire
On Tue, Jan 3, 2012 at 1:24 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Um ... you're supposing that only DDL uses SnapshotNow, which is wrong.
I refer you to the parser, the planner, execution functions for arrays,
records, enums, any sort of relcache reload, etc etc etc. Yes, some
of that is
Robert Haas robertmh...@gmail.com wrote:
Tom Lane t...@sss.pgh.pa.us wrote:
Um ... you're supposing that only DDL uses SnapshotNow, which is
wrong. I refer you to the parser, the planner, execution
functions for arrays, records, enums, any sort of relcache
reload, etc etc etc. Yes, some of
I wrote:
Another point that requires some thought is that switching SnapshotNow
to be MVCC-based will presumably result in a noticeable increase in each
backend's rate of wanting to acquire snapshots.
BTW, I wonder if this couldn't be ameliorated by establishing some
ground rules about how
From time to time there are complaints because people mistakenly feed a
text format dump to pg_restore and get back a somewhat cryptic message
about the file not being a valid archive. It's been suggested that we
should have pg_restore run the file through psql, but that would involve
more
Andrew Dunstan and...@dunslane.net writes:
From time to time there are complaints because people mistakenly feed a
text format dump to pg_restore and get back a somewhat cryptic message
about the file not being a valid archive. It's been suggested that we
should have pg_restore run the
On Tue, Jan 3, 2012 at 1:42 PM, Kevin Grittner
kevin.gritt...@wicourts.gov wrote:
Robert Haas robertmh...@gmail.com wrote:
Tom Lane t...@sss.pgh.pa.us wrote:
Um ... you're supposing that only DDL uses SnapshotNow, which is
wrong. I refer you to the parser, the planner, execution
functions
On 01/03/2012 01:55 PM, Tom Lane wrote:
Andrew Dunstanand...@dunslane.net writes:
From time to time there are complaints because people mistakenly feed a
text format dump to pg_restore and get back a somewhat cryptic message
about the file not being a valid archive. It's been suggested
On Tue, Jan 3, 2012 at 1:42 PM, Tom Lane t...@sss.pgh.pa.us wrote:
I wrote:
Another point that requires some thought is that switching SnapshotNow
to be MVCC-based will presumably result in a noticeable increase in each
backend's rate of wanting to acquire snapshots.
BTW, I wonder if this
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 1:42 PM, Tom Lane t...@sss.pgh.pa.us wrote:
BTW, I wonder if this couldn't be ameliorated by establishing some
ground rules about how up-to-date a snapshot really needs to be.
Arguably, it should be okay for successive
Hello
2012/1/3 Robert Haas robertmh...@gmail.com:
On Tue, Jan 3, 2012 at 10:38 AM, Pavel Stehule pavel.steh...@gmail.com
wrote:
Hello
2012/1/3 Robert Haas robertmh...@gmail.com:
On Mon, Jan 2, 2012 at 12:01 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
here is updated patch
I think
On 2012-01-03 04:44, Robert Haas wrote:
On read-only workloads, you get spinlock contention, because everyone
who wants a snapshot has to take the LWLock mutex to increment the
shared lock count and again (just a moment later) to decrement it.
Does the LWLock protect anything but the shared
Hi!
Thanks for your great work on reviewing this patch. Now I'm trying to find
memory corruption bug. Unfortunately it doesn't appears on my system. Can
you check if this bug remains in attached version of patch. If so, please
provide me information about system you're running (processor, OS
On Tue, Jan 3, 2012 at 3:05 PM, Jeremy Harris j...@wizmail.org wrote:
On 2012-01-03 04:44, Robert Haas wrote:
On read-only workloads, you get spinlock contention, because everyone
who wants a snapshot has to take the LWLock mutex to increment the
shared lock count and again (just a moment
On Wed, Jan 04, 2012 at 12:09:16AM +0400, Alexander Korotkov wrote:
Thanks for your great work on reviewing this patch. Now I'm trying to find
memory corruption bug. Unfortunately it doesn't appears on my system. Can
you check if this bug remains in attached version of patch. If so, please
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 3:05 PM, Jeremy Harris j...@wizmail.org wrote:
Also, heavy-contention locks should be placed in cache lines away from other
data (to avoid thrashing the data cache lines when processors are fighting
over the lock cache lines).
On Wed, Jan 4, 2012 at 12:33 AM, Noah Misch n...@leadboat.com wrote:
On Wed, Jan 04, 2012 at 12:09:16AM +0400, Alexander Korotkov wrote:
Thanks for your great work on reviewing this patch. Now I'm trying to
find
memory corruption bug. Unfortunately it doesn't appears on my system. Can
you
On Tue, Jan 3, 2012 at 6:24 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 12:55 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Another point that requires some thought is that switching SnapshotNow
to be MVCC-based will presumably result in a
On Tue, Jan 3, 2012 at 6:14 PM, Alvaro Herrera
alvhe...@commandprompt.com wrote:
If there are many call sites, maybe it'd be a good idea to use a
semantic patcher tool such as Coccinelle instead of doing it one by one.
Thanks for the suggestion, regrettably I've already made those changes.
Excerpts from Simon Riggs's message of mar ene 03 17:57:56 -0300 2012:
On Tue, Jan 3, 2012 at 6:14 PM, Alvaro Herrera
alvhe...@commandprompt.com wrote:
If there are many call sites, maybe it'd be a good idea to use a
semantic patcher tool such as Coccinelle instead of doing it one by
Robert Haas robertmh...@gmail.com writes:
I'm unconvinced by these numbers. There is a measurable change but it
is pretty small. The Itanium changes resulted in an enormous gain at
higher concurrency levels.
Yeah, that was my problem with it also: I couldn't measure enough gain
to convince
Hi,
I have a patch that improves the documentation for FreeBSD Kernel Tuning:
- Show a # prompt instead of $ to indicate a root shell is needed
- Remove the -w flag to sysctl since it is not needed anymore and just silently
ignored
- Encourage the user to set the read-only sysctls in
On 01/03/2012 04:49 PM, Brad Davis wrote:
Hi,
I have a patch that improves the documentation for FreeBSD Kernel Tuning:
- Show a # prompt instead of $ to indicate a root shell is needed
- Remove the -w flag to sysctl since it is not needed anymore and just silently
ignored
- Encourage the
On Tue, Jan 3, 2012 at 4:17 PM, Tom Lane t...@sss.pgh.pa.us wrote:
For Itanium, I was able to find some fairly official-looking
documentation that said this is how you should do it. It would be
nice to find something similar for PPC64, instead of testing every
machine and reinventing the
Simon Riggs si...@2ndquadrant.com wrote:
v2 of checksum patch, using a conditional copy if checksumming is
enabled, so locking is removed.
Thanks to Andres for thwacking me with the cluestick, though I
have used a simple copy rather than a copy calc.
Tested using make installcheck with
On Mon, Jan 02, 2012 at 12:31:13PM +0100, Dimitri Fontaine wrote:
Marko Kreen mark...@gmail.com writes:
I tried to generalize a function that creates partitions
for a table and found out it's impossible to do it for grants.
Basically, what I want is a child table that takes it's grants
On Jan 3, 2012, at 4:21 PM, Kevin Grittner wrote:
(2) I'm not sure about doing this in three parts, to skip the
checksum itself and the hole in the middle of the page. Is this
because the hole might not have predictable data? Why would that
matter, as long as it is read back the same?
IMO
On Jan 3, 2012, at 12:11 PM, Simon Riggs wrote:
This could well be related to the fact that DropRelFileNodeBuffers()
does a scan of shared_buffers, which is an O(N) approach no matter the
size of the index.
On top of that, taking what Robert Haas mentioned on another thread,
On Tue, Jan 03, 2012 at 05:02:57PM -0500, Andrew Dunstan wrote:
On 01/03/2012 04:49 PM, Brad Davis wrote:
Hi,
I have a patch that improves the documentation for FreeBSD Kernel Tuning:
- Show a # prompt instead of $ to indicate a root shell is needed
- Remove the -w flag to sysctl
On Jan 3, 2012, at 11:15 AM, Robert Haas wrote:
So you don't think a freelist is worth having, but you want a list of
allocation targets.
What is the practical difference?
I think that our current freelist is practically useless, because it
is almost always empty, and the cases where it's
On mån, 2012-01-02 at 23:42 -0500, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
On mån, 2012-01-02 at 15:47 +0100, Magnus Hagander wrote:
Were you thinking one option pointing to a directory or one option per
file?
One option per file:
That seems like serious overkill.
Jim Nasby j...@nasby.net writes:
On Jan 3, 2012, at 12:11 PM, Simon Riggs wrote:
This could well be related to the fact that DropRelFileNodeBuffers()
does a scan of shared_buffers, which is an O(N) approach no matter the
size of the index.
Couldn't we just leave the buffers alone? Once an
On mån, 2012-01-02 at 17:27 -0500, Andrew Dunstan wrote:
On 01/02/2012 04:37 PM, Peter Eisentraut wrote:
On mån, 2012-01-02 at 15:55 -0500, Andrew Dunstan wrote:
On 01/02/2012 03:12 PM, Peter Eisentraut wrote:
pg_regress: Replace exit_nicely() with exit() plus atexit() hook
This
On 01/03/2012 06:15 PM, Brad Davis wrote:
On Tue, Jan 03, 2012 at 05:02:57PM -0500, Andrew Dunstan wrote:
On 01/03/2012 04:49 PM, Brad Davis wrote:
Hi,
I have a patch that improves the documentation for FreeBSD Kernel Tuning:
- Show a # prompt instead of $ to indicate a root shell is
On 01/03/2012 06:29 PM, Peter Eisentraut wrote:
I think there is some room for improvement there:
- Why is the isolation test not part of check-world/installcheck-world?
The buildfarm does not use the -world targets, for several reasons,
including:
That was not my question. I run
Andrew Dunstan and...@dunslane.net writes:
Since I didn't actually tell you that I've made a context diff
for you, and it's attached. I'll let someone with more FBSD-fu than me
actually comment on it.
I have no FBSD-fu whatever, but the question this patch raises in my
mind is whether
On Jan 3, 2012, at 5:28 PM, Tom Lane wrote:
Jim Nasby j...@nasby.net writes:
On Jan 3, 2012, at 12:11 PM, Simon Riggs wrote:
This could well be related to the fact that DropRelFileNodeBuffers()
does a scan of shared_buffers, which is an O(N) approach no matter the
size of the index.
On Jan 1, 2012, at 10:43 PM, Peter Eisentraut wrote:
I figured the best and most flexible way to address this is to export
acldefault() as an SQL function and replace
aclexplode(proacl)
with
aclexplode(coalesce(proacl, acldefault('f', proowner)))
It would be nice to provide a
Jim Nasby j...@nasby.net writes:
Yeah, but the problem we run into is that with every backend trying to run
the clock on it's own we end up with high contention again... it's just in a
different place than when we had a true LRU. The clock sweep might be cheaper
than the linked list was,
On Dec 28, 2011, at 3:31 AM, Simon Riggs wrote:
On Wed, Dec 28, 2011 at 9:00 AM, Robert Haas robertmh...@gmail.com wrote:
What I'm not too clear
about is whether a 16-bit checksum meets the needs of people who want
checksums.
We need this now, hence the gymnastics to get it into this
On Tue, Jan 03, 2012 at 06:43:52PM -0500, Tom Lane wrote:
Andrew Dunstan and...@dunslane.net writes:
Since I didn't actually tell you that I've made a context diff
for you, and it's attached. I'll let someone with more FBSD-fu than me
actually comment on it.
I have no FBSD-fu whatever,
During the talk How To Get Your PostgreSQL Patch Accepted during
PgCon last year, I raised the idea of making a -Werror build option
easily available. I think it was Robert that pointed out that the
problem with that was that there is a warning due to an upstream Flex
bug that we can't do anything
I'm not sure if this is an XFS problem, or Postgres. There's enough
suspicious evidence that it's too hard to say.
Today, I get an interesting issue raised whereby a reasonably simple
query fails on a system that does take successful pg_dumps regularly.
To make a short story shorter, I end up
On Tue, Jan 3, 2012 at 6:22 PM, Jim Nasby j...@nasby.net wrote:
On Jan 3, 2012, at 11:15 AM, Robert Haas wrote:
So you don't think a freelist is worth having, but you want a list of
allocation targets.
What is the practical difference?
I think that our current freelist is practically
On Tue, Jan 3, 2012 at 7:11 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Jim Nasby j...@nasby.net writes:
Yeah, but the problem we run into is that with every backend trying to run
the clock on it's own we end up with high contention again... it's just in a
different place than when we had a true
On Mon, Jan 2, 2012 at 1:42 AM, chris r. chri...@gmx.net wrote:
I ported the entire schema to my test DB server and could not reproduce
the error there. Note that probably recreating the view solves this
issue. Given this, how should I proceed to create a test case? Any
tutorial on this? (I'm
On Tue, Jan 3, 2012 at 9:33 AM, Pavel Stehule pavel.steh...@gmail.com wrote:
I'd suppose it interesting to add a table to pg_catalog containing this data.
- it is useless overhead
I tend to agree.
I am expecting so definition some constants in Perl, Python is simple
Presumably one could
On Fri, Dec 30, 2011 at 11:58 AM, Jeff Janes jeff.ja...@gmail.com wrote:
On 12/29/11, Ants Aasma ants.aa...@eesti.ee wrote:
Unless I'm missing something, double-writes are needed for all writes,
not only the first page after a checkpoint. Consider this sequence of
events:
1. Checkpoint
2.
On Tue, Jan 3, 2012 at 7:39 PM, Peter Geoghegan pe...@2ndquadrant.com wrote:
Yes, I know that these only appeared in GCC 4.6+ and as such are a
relatively recent phenomenon, but there has been some effort to
eliminate them, and if I could get a non-hacked -Werror build I'd feel
happy enough
On Tue, Jan 3, 2012 at 6:29 PM, Peter Eisentraut pete...@gmx.net wrote:
On mån, 2012-01-02 at 17:27 -0500, Andrew Dunstan wrote:
On 01/02/2012 04:37 PM, Peter Eisentraut wrote:
On mån, 2012-01-02 at 15:55 -0500, Andrew Dunstan wrote:
On 01/02/2012 03:12 PM, Peter Eisentraut wrote:
On Tue, Jan 3, 2012 at 6:25 PM, Peter Eisentraut pete...@gmx.net wrote:
On mån, 2012-01-02 at 23:42 -0500, Tom Lane wrote:
Peter Eisentraut pete...@gmx.net writes:
On mån, 2012-01-02 at 15:47 +0100, Magnus Hagander wrote:
Were you thinking one option pointing to a directory or one option per
On 01/03/2012 08:40 PM, Robert Haas wrote:
On Tue, Jan 3, 2012 at 9:33 AM, Pavel Stehulepavel.steh...@gmail.com wrote:
I'd suppose it interesting to add a table to pg_catalog containing this data.
- it is useless overhead
I tend to agree.
I am expecting so definition some constants in
On Tue, Dec 27, 2011 at 10:48 PM, YAMAMOTO Takashi
y...@mwd.biglobe.ne.jp wrote:
does it make sense to teach the planner (and the executor?) use an ordering op
to optimize queries like the following?
select * from t where a - 1000 10
Seems useful to me. I'm not sure how hard it is,
On 01/03/2012 09:00 PM, Robert Haas wrote:
Normally you can just go to buildfarm.postgresql.org
and see which machines are failing and at what stage, and the view the
stage logs to see the specific errors. It's not the best web
interface I've ever seen, but it's not *that* bad.
And if
On Tue, Dec 27, 2011 at 6:39 AM, Alexander Björnhagen
alex.bjornha...@gmail.com wrote:
And so we get back to the three likelihoods in our two-node setup :
1.The master fails
- Okay, promote the standby
2.The standby fails
- Okay, the system still works but you no longer have data
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 7:39 PM, Peter Geoghegan pe...@2ndquadrant.com wrote:
Yes, I know that these only appeared in GCC 4.6+ and as such are a
relatively recent phenomenon, but there has been some effort to
eliminate them, and if I could get a
Daniel Farina dan...@heroku.com writes:
And, even more interestingly,
$ stat 16587.8 pg_internal.init
File: `16587.8'
Size: 98532 Blocks: 200IO Block: 4096 regular file
Device: fe00h/65024d Inode: 1073741952 Links: 1
Access: (0600/-rw---) Uid: ( 107/postgres)
Robert Haas robertmh...@gmail.com writes:
On Tue, Jan 3, 2012 at 6:25 PM, Peter Eisentraut pete...@gmx.net wrote:
[ reasons ]
I agree with these reasons. We don't get charged $0.50 per GUC, so
there's no particular reason to contort things to have fewer of them.
Well, there definitely is a
I assume you guys know where to go to get the complete sql:2011 spec:
http://www.iso.org/iso/search.htm?qt=9075searchSubmit=Searchsort=reltype=simplepublished=true
But if time/money is an issue the following seems to be the best publicly
available description of the temporal features:
On Jan 3, 2012, at 7:34 PM, Robert Haas wrote:
On Tue, Jan 3, 2012 at 7:11 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Jim Nasby j...@nasby.net writes:
Yeah, but the problem we run into is that with every backend trying to run
the clock on it's own we end up with high contention again... it's just
Is this perhaps by design?
Oy, this doesn’t look good:
$ do LANGUAGE plperl $$ elog(NOTICE, $^V) $$;
ERROR: server conn crashed?
ERROR: server conn crashed?
The connection to the server was lost. Attempting reset: Succeeded.
(pgxn@localhost:5900) 06:44:42 [pgxn]
$
Best,
David
smime.p7s
As part of the ongoing effort to reduce wake-ups when idle/power
consumption, the attached patch modifies the background writer to
hibernate in ten second bursts once the bgwriter laps the clock sweep.
It's fairly well commented, so a description of how it works here
would probably be redundant.
Kevin Grittner wrote:
if we define sum1 and sum2 as uint I don't see how we can get an
overflow with 8k byes
I feel the need to amend that opinion.
While sum1 only needs to hold a maximum of (BLCKSZ * 255), which
would be adequate for a BLCKSZ up to 16 MB, sum2 needs to hold up to
a
On 04.01.2012 07:58, Peter Geoghegan wrote:
As part of the ongoing effort to reduce wake-ups when idle/power
consumption, the attached patch modifies the background writer to
hibernate in ten second bursts once the bgwriter laps the clock sweep.
It's fairly well commented, so a description of
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