On Wed, Jun 06, 2018 at 11:58:14AM -0400, Peter Eisentraut wrote:
>
> The setting always requires the use of relinks. If
> they are not supported, the pg_upgrade run
> will abort. Use this in production to limit the upgrade run time.
> The setting auto uses reflinks when available,
> otherw
On Sat, Jul 14, 2018 at 03:47:38PM +0700, John Naylor wrote:
> I hope you don't mind, but since it might be tedious to piece together
> the addenda I left behind in this thread, I thought it might be useful
> to update Joe's patch. The attached was rebased over the new
> regression test, passes the
On Thu, Jul 12, 2018 at 02:37:28PM +0900, Michael Paquier wrote:
> On Wed, Jun 13, 2018 at 08:29:12PM +, Bossart, Nathan wrote:
>> Previous thread:
>> https://postgr.es/m/4BC0F3CD-F4B5-4F23-AADB-80607F9E4B4E%40amazon.com
>>
>> This is a new thread for tracking the work to add SKIP LOCKED to
>
On 2018/07/16 13:16, Tsunakawa-san wrote:
>Thanks. And what does the comparison look like between the unpartitioned case
>and various partition counts? What's the performance characteristics in terms
>of the latency and partition count? I thought that's what you tried to
>reveal first?
In u
Hi all
A user has raised the point that our refusal to GRANT rights to untrusted
PLs is counterproductive and inconsistent with how we behave elsewhere.
Yes, untrusted PLs can be escaped to gain superuser rights, often trivially.
But we allow this:
CREATE ROLE superme SUPERUSER NOINHERIT;
GRANT
On 2018/07/17 13:57, Alvaro Herrera wrote:
> On 2018-Feb-19, David G. Johnston wrote:
>
>> As an aside, adding a link to "Data Definiton/Table Partitioning" from at
>> least CREATE TABLE ... PARTITION BY; and swapping "PARTITION BY" and
>> "PARTITION OF" in the Parameters section of that page - on
On 2018-Feb-19, David G. Johnston wrote:
> As an aside, adding a link to "Data Definiton/Table Partitioning" from at
> least CREATE TABLE ... PARTITION BY; and swapping "PARTITION BY" and
> "PARTITION OF" in the Parameters section of that page - one must partition
> by a table before one can parti
On Fri, Jul 13, 2018 at 5:40 PM, Kyotaro HORIGUCHI
wrote:
> Hello.
>
> At Wed, 11 Jul 2018 15:09:23 +0900, Masahiko Sawada
> wrote in
>> On Mon, Jul 9, 2018 at 2:47 PM, Kyotaro HORIGUCHI
>> wrote:
> ..
>> Here is review comments of v4 patches.
>>
>> + if (minKeepLSN)
>> + {
>> +
On 2018/07/17 12:14, Ashutosh Bapat wrote:
> On Tue, Jul 17, 2018 at 8:31 AM, Kato, Sho wrote:
>> On 2018/07/17 10:49, Amit Langote wrote:
>>> Perhaps, Kato-san only intended to report that the time that planner spends
>>> for a partitioned table with 1100 partitions is just too high compared to
On Mon, Jul 16, 2018 at 11:22:07AM -0400, Robert Haas wrote:
> This doesn't seem to get rid of the morerows stuff.
The troubling ones are in monitoring.sgml:
LWLock
Lock
Activity
Client
IPC
Timeout
IO
And the patch previously sent removes them, but perhaps I am missing
your point?
--
Michael
si
Hello.
At Tue, 10 Jul 2018 18:52:54 +0200, Peter Eisentraut
wrote in
> committed
Thank you for committing this!
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center
On Tue, Jul 17, 2018 at 8:31 AM, Kato, Sho wrote:
> On 2018/07/17 10:49, Amit Langote wrote:
>>Perhaps, Kato-san only intended to report that the time that planner spends
>>for a partitioned table with 1100 partitions is just too high compared to the
>>time it spends on a non-partitioned table.
On 2018/07/17 10:49, Amit Langote wrote:
>Perhaps, Kato-san only intended to report that the time that planner spends
>for a partitioned table with 1100 partitions is just too high compared to the
>time it spends on a non-partitioned table.
yes, It is included for the purposes of this comparison
On Mon, Jul 16, 2018 at 11:37:28AM -0400, Tom Lane wrote:
> Heikki Linnakangas writes:
> > On 16/07/18 18:10, Tom Lane wrote:
> >> TBH I'm not really excited about investing any work in this area at all.
> >> Considering how seldom we hear any questions about transform_null_equals
> >> anymore[1],
On 2018/07/13 22:10, Ashutosh Bapat wrote:
> On Fri, Jul 13, 2018 at 9:23 AM, Kato, Sho wrote:
>>> I wondered if you compared to PG10 or to inheritence-partitioning (parent
>>> with relkind='r' and either trigger or rule or >INSERT/UPDATE directly into
>>> child) ?
>>
>> Thank you for your reply
On 17 July 2018 at 03:27, Joao De Almeida Pereira
wrote:
> After playing alittle bit around with the patch I noticed that a comma was
> missing in line 1214
> + 1202 /* min_server_version */
> + 1203 9,
> + 1204 /* catname */
> + 1205
On 17 July 2018 at 00:00, Heikki Linnakangas wrote:
> Playing around with this a little bit, I'm not very satisfied with the
> completions. Sometimes this completes too much, and sometimes too little.
> All of this has been mentioned in this and the other thread [1] already,
> this just my opinion
On Mon, Jul 16, 2018 at 10:38:14AM -0400, Robert Haas wrote:
> It's been a few years since I tested this, but my recollection is that
> if you fill up pg_xlog, the system will PANIC and die on a vanilla
> Linux install. Sure, you can set max_wal_size, but that's a soft
> limit, not a hard limit, a
On 2018/07/17 8:17, Alvaro Herrera wrote:
> On 2018-Jul-16, Ashutosh Bapat wrote:
>
>>> Hmm, let me reword this comment completely. How about the attached?
>
>> That looks much better. However it took me a small while to understand
>> that (1), (2) and (3) correspond to strategies.
>
> You're r
On 16 July 2018 at 06:55, Tom Lane wrote:
> I started to look at this patch. I think this is basically the right
> direction to go in, but I'm not terribly happy with the details of the
> data structure design.
I've made an attempt at addressing the issues that I understood.
I've not done anyth
On 2018-Jun-28, Yugo Nagata wrote:
> According to the error message, it is not allowed to alter statistics on
> included column because this is "non-expression column".
>
> postgres=# create table test (i int, d int);
> CREATE TABLE
> postgres=# create index idx on test(i) include (d);
> CREA
On Mon, Jul 16, 2018 at 09:41:51PM +0300, Heikki Linnakangas wrote:
> On 16 July 2018 21:38:39 EEST, Robert Haas wrote:
>>On Thu, Jul 12, 2018 at 10:12 AM, Heikki Linnakangas
>>wrote:
>>> Doesn't have to be a trigger, could be a CHECK constraint, datatype
>>input
>>> function, etc. Admittedly, ha
On 2018-Jul-16, Ashutosh Bapat wrote:
> > Hmm, let me reword this comment completely. How about the attached?
> That looks much better. However it took me a small while to understand
> that (1), (2) and (3) correspond to strategies.
You're right. Amended again and pushed. I also marked the op
There have been quite a few comments since last week, so at this point I am
uncertain how to proceed with this change. I don't think I saw anything
concrete in the recent emails that I can act upon.
I would like to respond to the comment about trying to "self-tune" the
behavior based on inferences
On Mon, Jul 16, 2018 at 2:36 AM, Amit Khandekar wrote:
> 0001 patch contains the main fix. In this patch I have used some
> naming conventions and some comments that you used in your patch,
> plus, I used your method of lazily allocating new stack level. The
> stack is initially Null.
Committed a
On 07/16/2018 05:24 PM, Robert Haas wrote:
> On Sun, Jul 15, 2018 at 6:53 AM, Vik Fearing
> wrote:
>> Hmm. Not sure if that last word should be _sample, _sampling, _rate, or
>> a combination of those.
>
> +1 for rate or sample_rate. I think "sample" or "sampling" without
> "rate" will not be ve
On 07/16/2018 02:54 PM, Dean Rasheed wrote:
> On 16 July 2018 at 13:23, Tomas Vondra wrote:
The top-level clauses allow us to make such deductions, with deeper
clauses it's much more difficult (perhaps impossible). Because for
example with (a=1 AND b=1) there can be just a single
I wrote:
> So I said I didn't want to do extra work on this, but I am looking into
> fixing it by having these aux process types run a ResourceOwner that can
> be told to clean up any open buffer pins at exit. We could be sure the
> coverage is complete by dint of removing the special-case code in
On 07/16/2018 05:24 PM, Robert Haas wrote:
> On Sun, Jul 15, 2018 at 6:53 AM, Vik Fearing
> wrote:
>> Hmm. Not sure if that last word should be _sample, _sampling, _rate, or
>> a combination of those.
>
> +1 for rate or sample_rate. I think "sample" or "sampling" without
> "rate" will not be ve
On 2018-Jul-12, Heikki Linnakangas wrote:
> > > Thanks for the pointer. My tap test has been covering two out of
> > > the three scenarios you have in your script. I have been able to
> > > convert the extra as the attached, and I have added as well an
> > > extra test with TRUNCATE triggers. S
On 2018-Jul-16, Michael Paquier wrote:
> On Sat, Jul 14, 2018 at 03:37:56PM +0900, Michael Paquier wrote:
> > For now, I think that just moving forward with 0001, and then revisit
> > 0002 once the other 2PC patch is settled makes the most sense. On the
> > other thread, the current 2PC behavior
пн, 16 июл. 2018 г. в 21:58, Andrey Klychkov :
> I made a patch to solve this issue (see the attachment).
> It allows to avoid locks by a query like this:
> “alter index rename CONCURRENTLY to ”.
>
Please, have a look at previous discussions on the subject:
- 2012
https://www.postgresql.org/mess
On 07/16/2018 08:09 PM, Robert Haas wrote:
> On Mon, Jul 16, 2018 at 1:28 PM, Tomas Vondra
> wrote:
>> I'm not sure I understand. Are you suggesting the process might get killed
>> or something, thanks to the CHECK_FOR_INTERRUPTS() call?
>
> Yes. CHECK_FOR_INTERRUPTS() can certainly lead to a
Hi!
> 16 июля 2018 г., в 22:58, Andrey Klychkov написал(а):
> Dear hackers!
>
> I have an idea to facilitate work with index rebuilding.
>
> "ALTER INDEX ... RENAME CONCURRENTLY TO ..."
The idea seems useful. I'm not an expert in CIC, but your post do not cover one
very important topic. W
Dear hackers!
I have an idea to facilitate work with index rebuilding.
Usually if we want to rebuild an index without table locks we should do the
queries below:
1. create index concurrently... (with different name on the same columns)
2. drop index concurrently
3. alter index rename to
As you
On 16 July 2018 21:38:39 EEST, Robert Haas wrote:
>On Thu, Jul 12, 2018 at 10:12 AM, Heikki Linnakangas
>wrote:
>> Doesn't have to be a trigger, could be a CHECK constraint, datatype
>input
>> function, etc. Admittedly, having a datatype input function that
>inserts to
>> the table is worth a "hu
On Thu, Jul 12, 2018 at 10:12 AM, Heikki Linnakangas wrote:
> Doesn't have to be a trigger, could be a CHECK constraint, datatype input
> function, etc. Admittedly, having a datatype input function that inserts to
> the table is worth a "huh?", but I'm feeling very confident that we can
> catch al
On 07/16/2018 11:35 AM, Claudio Freire wrote:
On Mon, Jul 16, 2018 at 11:34 AM Claudio Freire wrote:
On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
wrote:
On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
On 13/07/18 01:39, Andrew Dunstan wrote:
On 07/12/2018 06:34 PM, Alvaro Herrera w
On Mon, Jul 16, 2018 at 3:30 PM Andrew Dunstan
wrote:
>
>
>
> On 07/16/2018 10:34 AM, Claudio Freire wrote:
> > On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
> > wrote:
> >>
> >>
> >> On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
> >>> On 13/07/18 01:39, Andrew Dunstan wrote:
> On 07/12
On 07/16/2018 10:34 AM, Claudio Freire wrote:
On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
wrote:
On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
On 13/07/18 01:39, Andrew Dunstan wrote:
On 07/12/2018 06:34 PM, Alvaro Herrera wrote:
On 2018-Jul-12, Andrew Dunstan wrote:
I fully un
On Mon, Jul 16, 2018 at 1:28 PM, Tomas Vondra
wrote:
> I'm not sure I understand. Are you suggesting the process might get killed
> or something, thanks to the CHECK_FOR_INTERRUPTS() call?
Yes. CHECK_FOR_INTERRUPTS() can certainly lead to a non-local
transfer of control.
> But BackendXidGetProc
On 07/16/2018 07:21 PM, Tom Lane wrote:
Robert Haas writes:
I agree. As a general statement, I think the idea of trying to
prevent transactions from aborting is really scary. It's almost an
axiom of the system that we're always allowed to abort, and I think
there could be a lot of unintended
On 07/16/2018 06:15 PM, Robert Haas wrote:
On Mon, Jul 16, 2018 at 11:21 AM, Tomas Vondra
wrote:
Overall, I think it's clear the main risk associated with this patch is the
decode group code - it touches PROC entries, so a bug may cause trouble
pretty easily. So I've focused on this part, fo
> 16 июля 2018 г., в 18:58, Robert Haas написал(а):
>
> On Fri, Jul 13, 2018 at 10:10 AM, Heikki Linnakangas wrote:
>> I'm still a bit scared about using pd_prune_xid to store the XID that
>> prevents recycling the page too early. Can we use some field in
>> GISTPageOpaqueData for that, simila
Robert Haas writes:
> I agree. As a general statement, I think the idea of trying to
> prevent transactions from aborting is really scary. It's almost an
> axiom of the system that we're always allowed to abort, and I think
> there could be a lot of unintended and difficult-to-fix consequences
>
Since "make check-world" is rather chatty, if you get a failure while
running it under high parallelism, the location of the failure has often
scrolled off the terminal window by the time all the other subjobs exit.
This is not a huge problem for tests using our traditional infrastructure,
because
On Mon, Jul 16, 2018 at 11:21 AM, Tomas Vondra
wrote:
> Overall, I think it's clear the main risk associated with this patch is the
> decode group code - it touches PROC entries, so a bug may cause trouble
> pretty easily. So I've focused on this part, for now.
I agree. As a general statement, I
On Mon, Jul 16, 2018 at 09:49:14AM +0200, Fabien COELHO wrote:
> Hello David,
>
> >Per a discussion with Andrew Gierth and Vik Fearing, both of whom
> >helped make this happen, please find attached a patch which makes it
> >possible to get SQL standard behavior for "= NULL", which is an error.
> >
On 16/07/18 18:35, Claudio Freire wrote:
On Mon, Jul 16, 2018 at 11:34 AM Claudio Freire wrote:
On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
wrote:
On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
Claudio raised a good point, that doing small pallocs leads to
fragmentation, and in particu
Heikki Linnakangas writes:
> On 16/07/18 18:10, Tom Lane wrote:
>> TBH I'm not really excited about investing any work in this area at all.
>> Considering how seldom we hear any questions about transform_null_equals
>> anymore[1], I'm wondering if we couldn't just rip the "feature" out
>> entirely
On Mon, Jul 16, 2018 at 11:34 AM Claudio Freire wrote:
>
> On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
> wrote:
> >
> >
> >
> > On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
> > > On 13/07/18 01:39, Andrew Dunstan wrote:
> > >> On 07/12/2018 06:34 PM, Alvaro Herrera wrote:
> > >>> On 2018-
On 12/07/18 21:27, Fabien COELHO wrote:
For the testing, we just need to make sure that at least one progress report
is always printed, if -P is used. Right?
Yep. That is the first condition above the last_report is set to
thread_start meaning that there has been no report.
So where does the
Hello,
postgres=# select partkey, partc[TAB]
> [no completions]
>
>From the thread, I believe that this feature will be implemented in a after
patch.
>
> And I'd love this case, where go back to edit the SELECT list, after
> already typing the FROM part, to be smarter:
>
> postgres=# select p[TA
On Sun, Jul 15, 2018 at 6:53 AM, Vik Fearing
wrote:
> Hmm. Not sure if that last word should be _sample, _sampling, _rate, or
> a combination of those.
+1 for rate or sample_rate. I think "sample" or "sampling" without
"rate" will not be very clear.
--
Robert Haas
EnterpriseDB: http://www.ent
On Fri, Jul 13, 2018 at 2:30 PM, Jeremy Finzel wrote:
> Hello -
>
> We are working on several DR scenarios with logical decoding. Although we
> are using pglogical the question we have I think is generally applicable to
> logical replication.
>
> Say we have need to drop a logical replication sl
On Sun, Jul 15, 2018 at 10:10 PM, Michael Paquier wrote:
> On Fri, Jul 13, 2018 at 04:57:59PM -0500, Robert Haas wrote:
>> On Mon, Jul 9, 2018 at 4:41 PM, Michael Paquier wrote:
>>> Another idea that I have here, is to rework the page for monitoring
>>> stats so as we create one sub-section for e
Hi Nikhil,
I've been looking at this patch series, and I do have a bunch of
comments and questions, as usual ;-)
Overall, I think it's clear the main risk associated with this patch is
the decode group code - it touches PROC entries, so a bug may cause
trouble pretty easily. So I've focused
On 16/07/18 18:10, Tom Lane wrote:
Heikki Linnakangas writes:
On 16/07/18 04:40, David Fetter wrote:
Per a discussion with Andrew Gierth and Vik Fearing, both of whom
helped make this happen, please find attached a patch which makes it
possible to get SQL standard behavior for "= NULL", which
Heikki Linnakangas writes:
> On 16/07/18 04:40, David Fetter wrote:
>> Per a discussion with Andrew Gierth and Vik Fearing, both of whom
>> helped make this happen, please find attached a patch which makes it
>> possible to get SQL standard behavior for "= NULL", which is an error.
>> It's been up
On Mon, Jul 16, 2018 at 3:49 AM, Heikki Linnakangas wrote:
> I don't agree with changing the default to 'warn'. "foo = NULL" is perfectly
> legal SQL, even if it's not very useful in practice.
+1. I think that will probably generate lots of annoying warnings in
server logs compared to the value
On Sun, Jul 15, 2018 at 1:43 PM, Dmitry Dolgov <9erthali...@gmail.com> wrote:
> Partitions: test11 FOR VALUES FROM (0) TO (100),
> test12 FOR VALUES FROM (100) TO (200),
> test13 FOR VALUES FROM (200) TO (300)
>
> Partitions: test21 FOR VALUES FROM (10) TO (110),
>
On Fri, Jul 13, 2018 at 10:10 AM, Heikki Linnakangas wrote:
> I'm still a bit scared about using pd_prune_xid to store the XID that
> prevents recycling the page too early. Can we use some field in
> GISTPageOpaqueData for that, similar to how the B-tree stores it in
> BTPageOpaqueData?
What's yo
Haribabu Kommi wrote:
> > On Wed, Jul 4, 2018 at 11:14 PM Laurenz Albe
> > wrote:
> > > Haribabu Kommi wrote:
> > >
> > > - I think the construction with "read_write_host_index" makes the code
> > > even more
> > > complicated than it already is.
> > >
> > > What about keeping the first s
Andres Freund writes:
> On 2018-07-15 18:48:43 -0400, Tom Lane wrote:
>> So basically, WAL replay hits an error while holding a buffer pin, and
>> nothing is done to release the buffer pin, but AtProcExit_Buffers thinks
>> something should have been done.
> I think there's a few other cases where
On Mon, Jul 16, 2018 at 10:12 AM, Tom Lane wrote:
> But anyway, this means we have two nearly independent issues to
> investigate: whether recycling/renaming old files is cheaper than
> constantly creating and deleting them, and whether to use physical
> file zeroing versus some "just set the EOF
On Fri, Jul 13, 2018 at 5:43 PM Andrew Dunstan
wrote:
>
>
>
> On 07/13/2018 09:44 AM, Heikki Linnakangas wrote:
> > On 13/07/18 01:39, Andrew Dunstan wrote:
> >> On 07/12/2018 06:34 PM, Alvaro Herrera wrote:
> >>> On 2018-Jul-12, Andrew Dunstan wrote:
> >>>
> I fully understand. I think this
On Mon, Jul 16, 2018 at 8:56 AM, Peter Eisentraut
wrote:
>> The attached patch seems to do the trick, of allowing EXECUTE + USING.
>> I'm not sure this is worth the trouble, though, since EXECUTE as a plain
>> SQL command is a PostgreSQL-extension anyway.
>
> I think it's a PostgreSQL extension th
Andres Freund writes:
> On 2018-07-15 20:55:38 -0400, Tom Lane wrote:
>> That's not the way to think about it. On a COW file system, we don't
>> want to "create 16MB files" at all --- we should just fill WAL files
>> on-the-fly, because the pre-fill activity isn't actually serving the
>> intended
> Well, sure. But you could just as well open multiple connections and
> make the queries concurrent that way. Or change the GUC to increase the
> number of workers for the nightly ETL.
This is an option right now for having permanent staging tables for future
join. I mistakenly said ETL while it
Andres Freund writes:
> On 2018-07-15 16:41:35 -0400, Tom Lane wrote:
>> Andres Freund writes:
>>> On 2018-07-09 19:56:25 -0400, Tom Lane wrote:
Or, perhaps, use a struct in assert builds and int64 otherwise?
You could hide the ensuing notational differences in macros.
>> [ bunch of te
Hi,
On 2018-07-05 15:25:25 +0300, Alexander Korotkov wrote:
> > - I think the move of the indexing from outside the table layer into the
> > storage layer isn't a good idea. It lead to having to pass EState into
> > the tableam, a callback API to perform index updates, etc. This seems
> > t
Hi,
I've pushed up a new version to
https://github.com/anarazel/postgres-pluggable-storage which now passes
all the tests.
Besides a lot of bugfixes, I've rebased the tree, moved TriggerData to
be primarily slot based (with a conversion roundtrip when calling
trigger functions), and a lot of othe
Hi,
On 2018-07-15 20:55:38 -0400, Tom Lane wrote:
> That's not the way to think about it. On a COW file system, we don't
> want to "create 16MB files" at all --- we should just fill WAL files
> on-the-fly, because the pre-fill activity isn't actually serving the
> intended purpose of reserving di
Hi,
On 2018-07-15 18:48:43 -0400, Tom Lane wrote:
> So basically, WAL replay hits an error while holding a buffer pin, and
> nothing is done to release the buffer pin, but AtProcExit_Buffers thinks
> something should have been done.
I think there's a few other cases where we hit this. I've seen s
On 2018-07-15 20:32:39 -0400, Robert Haas wrote:
> On Thu, Jul 5, 2018 at 4:39 PM, Andres Freund wrote:
> > This is formulated *WAY* too positive. It'll have dramatic *NEGATIVE*
> > performance impact of non COW filesystems, and very likely even negative
> > impacts in a number of COWed scenarios
Hi,
On 2018-07-15 16:41:35 -0400, Tom Lane wrote:
> Andres Freund writes:
> > On 2018-07-09 19:56:25 -0400, Tom Lane wrote:
> >> Or, perhaps, use a struct in assert builds and int64 otherwise?
> >> You could hide the ensuing notational differences in macros.
>
> > That should be doable. But I'd
On 11.07.18 19:07, Heikki Linnakangas wrote:
>> One point worth pondering is how to pass the parameters of the prepared
>> statements. The actual SQL standard syntax would be
>>
>> DECLARE cursor_name CURSOR FOR prepared_statement_name;
>> OPEN cursor_name USING param, param;
>>
>> But s
On 16 July 2018 at 13:23, Tomas Vondra wrote:
>>> The top-level clauses allow us to make such deductions, with deeper
>>> clauses it's much more difficult (perhaps impossible). Because for
>>> example with (a=1 AND b=1) there can be just a single match, so if we
>>> find it in MCV we're done. With
On Fri, Jul 13, 2018 at 10:15:34PM -0500, Justin T Pryzby wrote:
> On Fri, Jul 13, 2018 at 12:28:15PM -0400, Bruce Momjian wrote:
> > I received a private pg_upgrade feature request to report the database
> > name for missing loadable libraries. Currently we report "could not
> > load library" and
On 07/16/2018 12:03 PM, Paul Muntyanu wrote:
Hi Tomas, thanks for looking into. I am more talking about queries which
can not be optimized, e.g.
* fullscan of the table and heavy calculations for another one.
* query through FDW for both queries(e.g. one query fetches data from
Kafka and ano
On 07/15/2018 11:36 AM, Dean Rasheed wrote:
On 13 July 2018 at 18:27, Tomas Vondra wrote:
I'm not so sure. The issue is that a lot of the MCV deductions depends
on whether we can answer questions like "Is there a single match?" or
"If we got a match in MCV, do we need to look at the non-MCV
On 07/16/2018 12:16 AM, Tomas Vondra wrote:
On 07/15/2018 04:43 PM, Dean Rasheed wrote:
On 15 July 2018 at 14:29, Tomas Vondra wrote:
It's quite unclear to me how this algorithm could reliably end up with
hist_sel=0 (in cases where we already don't end up with that). I mean,
if a bucket ma
On Sat, Jul 14, 2018 at 12:14:51AM +0200, Daniel Gustafsson wrote:
> > On 13 Jul 2018, at 18:28, Bruce Momjian wrote:
> >
> > I received a private pg_upgrade feature request to report the database
> > name for missing loadable libraries. Currently we report "could not
> > load library" and the l
On 12.07.18 11:12, Pavel Stehule wrote:
> This appears to be the patch of record in this thread. I think there is
> general desire for adding a setting like this, and the implementation is
> simple enough.
>
> One change perhaps: How about naming the default setting "auto" instead
(trimmed CC list to evade gmail's spam filter, sorry)
On 21/03/18 08:51, Edmund Horner wrote:
Hi all, I haven't heard anything for a while and so assume you're
beavering away on real features. :)
I've been dogfooding this patch at work, and I am personally pretty
happy with it.
I still think t
On Sat, Jul 14, 2018 at 2:41 AM, Alvaro Herrera
wrote:
> On 2018-Jul-13, Ashutosh Bapat wrote:
>
>> On Fri, Jul 13, 2018 at 1:15 PM, Amit Langote
>> wrote:
>> >>
>> >> I don't think this is true. When equality conditions and IS NULL clauses
>> >> cover
>> >> all partition keys of a hash partitio
Hello.
Thanks a lot for your feedback. I'll try to update patch in few days
(currently stuck at small performance regression in unknown place).
Regarding issue with delete: yes, it is valid point, but record removing
should clear visibility buffer - and tuple will be fetched from heap to
test its
On Sat, Jul 14, 2018 at 03:37:56PM +0900, Michael Paquier wrote:
> For now, I think that just moving forward with 0001, and then revisit
> 0002 once the other 2PC patch is settled makes the most sense. On the
> other thread, the current 2PC behavior can create silent data loss so
> I would like to
Hi Tomas, thanks for looking into. I am more talking about queries which
can not be optimized, e.g.
* fullscan of the table and heavy calculations for another one.
* query through FDW for both queries(e.g. one query fetches data from Kafka
and another one is fetching from remote Postgres. There are
Hi,
On 07/16/2018 09:45 AM, Paul Muntyanu wrote:
Hello,
I am working with data warehouse based on postgresql and would like
to propose a feature. The idea is to give control and ability for
developer to execute queries in parallel within single transaction.
Usual flow is next: START_TRAN
On 07/16/2018 04:54 AM, Stephen Frost wrote:
Greetings,
* Tom Lane (t...@sss.pgh.pa.us) wrote:
I think that the right basic idea is to have a GUC that chooses between
the two implementations, but whether it can be set automatically is not
clear to me. Can initdb perhaps investigate what kind o
On Wed, Jul 11, 2018 at 6:00 PM Haribabu Kommi
wrote:
>
>
> On Wed, Jul 4, 2018 at 11:14 PM Laurenz Albe
> wrote:
>
>> Haribabu Kommi wrote:
>>
>>
> - I think the construction with "read_write_host_index" makes the code
>> even more
>> complicated than it already is.
>>
>> What about keeping
I get it. Thank you for this precision.
Regards
Phil
De : David Rowley
Envoyé : lundi 16 juillet 2018 07:48
À : Phil Florent
Cc : Tom Lane; Robert Haas; Amit Langote; PostgreSQL Hackers
Objet : Re: Internal error XX000 with enable_partition_pruning=on, pg 11 bet
Hello Heikki,
The use case for transform_null_equals='warn' that I see is to wean off an
application that uses transform_null_equals='on', to find all the queries
that rely on it. But I'm not too excited about that either. The documented
case for using transform_null_equals='on' is compatibi
Hello,
I am working with data warehouse based on postgresql and would like to
propose a feature. The idea is to give control and ability for developer to
execute queries in parallel within single transaction. Usual flow is next:
START_TRANSACTION -> QUERY1 -> QUERY2 -> QUERY3 -> END_TRANSACTION
On 16/07/18 04:40, David Fetter wrote:
Folks,
Per a discussion with Andrew Gierth and Vik Fearing, both of whom
helped make this happen, please find attached a patch which makes it
possible to get SQL standard behavior for "= NULL", which is an error.
It's been upgraded to a warning, and can sti
Hello David,
Per a discussion with Andrew Gierth and Vik Fearing, both of whom
helped make this happen, please find attached a patch which makes it
possible to get SQL standard behavior for "= NULL", which is an error.
It's been upgraded to a warning, and can still be downgraded to
silence (of
+1, I also think that we may not change the previous behavior of plpython.
@Nikita Glukhov maybe we just check the
whether pyobject is int or long only in related conversion functions, and
fallback otherwise?
On Fri, Jul 13, 2018 at 12:09 AM Heikki Linnakangas wrote:
> On 12/07/18 18:06, Nikita
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