On Thu, May 21, 2020 at 11:36 AM Rushabh Lathia
wrote:
>
> On Thu, May 21, 2020 at 10:47 AM Ahsan Hadi wrote:
>>
During an offlist discussion with Robert, he pointed out that current
basebackup's code doesn't account for the wait event for the reading
of files which can change
On Tue, May 19, 2020 at 4:29 AM Andy Fan wrote:
>
> Thanks for the excellent extension. I want to add 5 more fields to satisfy the
> following requirements.
>
> int subplan; /* No. of subplan in this query */
> int subquery; /* No. of subquery */
> int joincnt; /* How many relations are join
On Thu, May 21, 2020 at 8:36 AM Michael Paquier wrote:
>
> Hi all,
>
> Normally $subject would have been discussed at the developer meeting
> in Ottawa, but that's not going to happen per the current situation.
>
> For the last couple of years, we have been using the same timeline for
> for commit
Hello hackers!
This email is about the proposal to implement OLTP-oriented compression on
PostgreSQL.
Although there are currently some alternative ways to achieve compression, such
as using a file system that supports compression.
However, this depends on a specific file system and is not suit
Hi all,
Normally $subject would have been discussed at the developer meeting
in Ottawa, but that's not going to happen per the current situation.
For the last couple of years, we have been using the same timeline for
for commit fests in a development cycle, so why not going with the
same flow thi
On Thu, May 21, 2020 at 11:25 AM Kyotaro Horiguchi
wrote:
> At Wed, 20 May 2020 19:17:48 +0900, Etsuro Fujita
> wrote in
> > Here is a patch including the change I proposed. (Yet another thing I
> > noticed is the indent spaces for join_search_one_level(): that
> > function is called within sta
On Mon, May 4, 2020 at 6:22 PM Rushabh Lathia
wrote:
>
>
> On Thu, Apr 30, 2020 at 4:15 PM Amit Kapila
> wrote:
>
>> On Wed, Apr 29, 2020 at 6:11 PM Suraj Kharage
>> wrote:
>> >
>> > Hi,
>> >
>> > We at EnterpriseDB did some performance testing around this parallel
>> backup to check how this i
On Thu, 21 May 2020 at 14:32, Thomas Munro wrote:
> Thanks. So it seems like Linux, Windows and anything using ZFS are
> OK, which probably explains why we hadn't heard complaints about it.
I tried out a different test on a Windows 8.1 machine I have here. I
was concerned that the test that was
Hi Jon,
I noticed a couple minor inconsistencies:
".datetime" -> elsewhere functions are formatted as `.datetime()`
libpq -> `libpq`
The link to the release notes on its own line is the same as the
inline link, if that makes sense. In other places with links on their
own line, the full URL is i
On 2020/05/20 21:56, Atsushi Torikoshi wrote:
On Wed, May 20, 2020 at 1:32 PM Kyotaro Horiguchi mailto:horikyota@gmail.com>> wrote:
At Tue, 19 May 2020 22:56:17 +0900, Atsushi Torikoshi mailto:ato...@gmail.com>> wrote in
> On Sat, May 16, 2020 at 6:01 PM legrand legrand mailto:l
I did some more digging. To keep everyone on the same page there are
four different ways to order TOCs:
1. topological order,
2. dataLength order, size of the table, is always zero when pg_dump can't seek,
3. dumpId order, which should be thought as random but roughly
correlates to topological ord
On Thu, May 21, 2020 at 1:38 PM Ranier Vilela wrote:
>> >> On Thu, May 21, 2020 at 11:15 AM Ranier Vilela
>> >> wrote:
>> >> > postgres=# set max_parallel_workers_per_gather = 0;
>> >> > Time: 227238,445 ms (03:47,238)
>> >> > postgres=# set max_parallel_workers_per_gather = 1;
>> >> > Time: 138
At Wed, 20 May 2020 19:17:48 +0900, Etsuro Fujita
wrote in
> On Tue, May 19, 2020 at 7:35 PM Etsuro Fujita wrote:
> > On Mon, May 18, 2020 at 7:45 PM Richard Guo wrote:
> > > ---query_planner()
> > > +---query_planner()
> > > make list of base relations used in query
> > > split up the
On Wed, May 20, 2020 at 7:47 PM David Rowley wrote:
> On Mon, 27 Apr 2020 at 00:37, Andy Fan wrote:
> > I was feeling that we may have to maintain some extra status if we use
> hash
> > table rather than tuple store, but that might be not a major concern. I
> can
> > wait and see your patch.
>
Em qua., 20 de mai. de 2020 às 21:03, Thomas Munro
escreveu:
> On Thu, May 21, 2020 at 11:51 AM Ranier Vilela
> wrote:
> > Em qua., 20 de mai. de 2020 às 20:48, Thomas Munro <
> thomas.mu...@gmail.com> escreveu:
> >> On Thu, May 21, 2020 at 11:15 AM Ranier Vilela
> wrote:
> >> > postgres=# set
At Wed, 20 May 2020 10:05:29 +0200, Peter Eisentraut
wrote in
> On 2020-05-20 09:13, Michael Paquier wrote:
> > On Tue, May 19, 2020 at 01:02:12PM +0200, Peter Eisentraut wrote:
> >> That thread didn't resolve why check_canonical_path() is necessary
> >> there.
> >> Maybe the existing uses could
On Wed, May 20, 2020 at 01:57:31PM -0400, Robert Haas wrote:
> I don't really see any reason why this couldn't be committed even at
> this late date, but I also don't care that much. I suspect the number
> of extension authors who are likely to have to make any code changes
> is small. It's anybody
Hi, Peter!
On Thu, May 21, 2020 at 12:37 AM Peter Geoghegan wrote:
> Commit 911e7020770 added a variety of new support routines to index
> AMs. For example, it added a support function 5 to btree (see
> BTOPTIONS_PROC), but didn't document this alongside the other support
> functions in btree.sgm
On Tue, May 19, 2020 at 09:15:40PM -0700, Jeff Davis wrote:
On Tue, 2020-05-19 at 19:53 +0200, Tomas Vondra wrote:
And if there a way to pre-allocate larger chunks? Presumably we could
assign the blocks to tape in larger chunks (e.g. 128kB, i.e. 16 x
8kB)
instead of just single block. I haven't
On Thu, May 21, 2020 at 11:51 AM Ranier Vilela wrote:
> Em qua., 20 de mai. de 2020 às 20:48, Thomas Munro
> escreveu:
>> On Thu, May 21, 2020 at 11:15 AM Ranier Vilela wrote:
>> > postgres=# set max_parallel_workers_per_gather = 0;
>> > Time: 227238,445 ms (03:47,238)
>> > postgres=# set max_p
Em qua., 20 de mai. de 2020 às 20:48, Thomas Munro
escreveu:
> On Thu, May 21, 2020 at 11:15 AM Ranier Vilela
> wrote:
> > postgres=# set max_parallel_workers_per_gather = 0;
> > Time: 227238,445 ms (03:47,238)
> > postgres=# set max_parallel_workers_per_gather = 1;
> > Time: 138027,351 ms (02:1
On Thu, May 21, 2020 at 11:15 AM Ranier Vilela wrote:
> postgres=# set max_parallel_workers_per_gather = 0;
> Time: 227238,445 ms (03:47,238)
> postgres=# set max_parallel_workers_per_gather = 1;
> Time: 138027,351 ms (02:18,027)
Ok, so it looks like NT/NTFS isn't suffering from this problem.
Tha
Em qua., 20 de mai. de 2020 às 18:49, Thomas Munro
escreveu:
> On Wed, May 20, 2020 at 11:03 PM Ranier Vilela
> wrote:
> > Time: 47767,916 ms (00:47,768)
> > Time: 32645,448 ms (00:32,645)
>
> Just to make sure kernel caching isn't helping here, maybe try making
> the table 2x or 4x bigger? My
On 5/20/20 6:42 PM, Justin Pryzby wrote:
> On Wed, May 20, 2020 at 06:11:08PM -0400, Jonathan S. Katz wrote:
>> This release includes more ways to monitor actibity within a PostgreSQL
>
> activity
...that one is embarrassing. Thanks.
>
>> partition its "accounts" table, making it easier to benc
On Wed, May 20, 2020 at 06:11:08PM -0400, Jonathan S. Katz wrote:
> This release includes more ways to monitor actibity within a PostgreSQL
activity
> partition its "accounts" table, making it easier to benchmark workloads that
> contains partitions.
contain
No need to respond :)
Thanks,
Justi
Alvaro Herrera writes:
> On 2020-May-20, Tom Lane wrote:
>> I feel like we'd be better advised to somehow
>> treat can-be-bare-col-label as an independent classification.
> Would it make sense (and possible) to have a keyword category that is
> not disjoint wrt. the others? Maybe that ends up be
Hi,
On 5/18/20 10:29 PM, Jonathan S. Katz wrote:
> Hi,
>
> Attached is a draft of the release announcement for the PostgreSQL 13
> Beta 1 release this week.
>
> The goal of this release announcement is to make people aware of the new
> features that are introduced in PostgreSQL 13 and, important
On 2020-May-20, Tom Lane wrote:
> I too failed to save the results of some experimentation, but I'd
> also poked at the type_func_name_keyword category, and it has a similar
> situation where only about three keywords cause problems if included
> in BareColLabel. So we could possibly get another
On Wed, May 20, 2020 at 11:03 PM Ranier Vilela wrote:
> Time: 47767,916 ms (00:47,768)
> Time: 32645,448 ms (00:32,645)
Just to make sure kernel caching isn't helping here, maybe try making
the table 2x or 4x bigger? My test was on a virtual machine with only
4GB RAM, so the table couldn't be en
Commit 911e7020770 added a variety of new support routines to index
AMs. For example, it added a support function 5 to btree (see
BTOPTIONS_PROC), but didn't document this alongside the other support
functions in btree.sgml.
It looks like the new support functions are fundamentally different to
th
Mark Dilger writes:
> ... But if we made a clean distinction between the characters that are
> allowed in postfix operators vs. those allowed for infix operators, then we'd
> get to have postfix operators without the ambiguity, right?
I continue to see little point in half-baked compatibility m
> On May 20, 2020, at 11:24 AM, Tom Lane wrote:
>
> Bottom line is that we can reduce the scope of the col-label problem
> this way, but we can't make it go away entirely. Is a partial solution
> to that worth a full drop of postfix operators? Possibly, but I'm not
> sure. I still feel like
On 5/20/20 3:04 PM, Vik Fearing wrote:
> I'm looking forward to reviewing this.
A few quick things I've noticed so far:
1)
There are some smart quotes in the comments that should be converted to
single quotes.
2)
This query is an infinite loop, as expected:
with recursive a as (select 1 as b
Robert Haas writes:
> On Tue, May 19, 2020 at 7:47 PM Tom Lane wrote:
>> However, as the patch
>> stands, only the remaining fully-unreserved keywords can be used as bare
>> column labels. I'd hoped to be able to also use col_name keywords in that
>> way (which'd make the set of legal bare colum
On Mon, Apr 20, 2020 at 9:40 PM Michael Paquier wrote:
> Okay. Any other opinions? I am in a 50/50 state about that stuff.
I don't really see any reason why this couldn't be committed even at
this late date, but I also don't care that much. I suspect the number
of extension authors who are like
On Thu, Feb 13, 2020 at 5:55 PM Tom Lane wrote:
> (1) In the backend, allow SET ROLE to succeed if either the session
> userid or the current userid is a member of the desired role. This
> would mean that, given the use-case for --role that you are logging
> into an account that can "SET ROLE pos
On Tue, May 19, 2020 at 4:31 PM Thomas Munro wrote:
> What would a precise version of this look like? Maybe we really only
> need to fsync relation files that recovery modifies (as we already
> do), plus those that it would have touched but didn't because of the
> page LSN (a new behaviour to cat
On Tue, May 19, 2020 at 7:47 PM Tom Lane wrote:
> As Robert theorized, it works to move a fairly-small number of unreserved
> keywords into a new slightly-reserved category.
It wasn't entirely a theoretical argument, since I'm pretty sure I did
spend some time experimenting with gram.y back in th
David Gilman writes:
>> I think the PG11
>> commit you mentioned (548e5097) happens to make some databases fail in
>> parallel restore that previously worked (I didn't check).
> Correct, if you do the bisect around that yourself you'll see
> pg_restore start failing with the expected "possibly du
Guillaume Lelarge writes:
> Le mer. 20 mai 2020 à 11:26, Daniel Gustafsson a écrit :
>> The question is what --extensions should do: only dump any
>> extensions that objects in the schema depend on; require a pattern and only
>> dump matching extensions; dump all extensions (probably not) or som
1. Really if it's possible to avoid bool callbacks at all and shift
everywhere to ternary it makes code quite beautiful and even. But I also
think we are still not obliged to drop support for (legacy or otherwise)
bool callbacks and also consistent functions form some old extensions (I
don't know f
Peter Eisentraut writes:
> If I run pgindent on a built tree on macos, I get this error
> Failure in ./src/backend/utils/probes.h: Error@375: Stuff missing from
> end of file
> The file in question is built by the dtrace command. I have attached it
> here.
> Is this something to fix in pgindent
On 5/20/20 1:46 PM, Peter Eisentraut wrote:
> I have implemented the SEARCH and CYCLE clauses.
YES!
> This is standard SQL syntax attached to a recursive CTE to compute a
> depth- or breadth-first ordering and cycle detection, respectively. This
> is just convenience syntax for what you can alrea
On Wed, 20 May 2020 at 12:44, David Rowley wrote:
> Hackers,
>
> Over on [1], Heikki mentioned about the usefulness of caching results
> from parameterized subplans so that they could be used again for
> subsequent scans which have the same parameters as a previous scan.
> On [2], I mentioned tha
On Wed, May 20, 2020 at 1:32 PM Kyotaro Horiguchi
wrote:
> At Tue, 19 May 2020 22:56:17 +0900, Atsushi Torikoshi
> wrote in
> > On Sat, May 16, 2020 at 6:01 PM legrand legrand <
> legrand_legr...@hotmail.com>
> > wrote:
> >
> > BTW, I'd also appreciate other opinions about recording the number
>
Your understanding of the issue is mostly correct:
> I think the PG11
> commit you mentioned (548e5097) happens to make some databases fail in
> parallel restore that previously worked (I didn't check).
Correct, if you do the bisect around that yourself you'll see
pg_restore start failing with th
I have implemented the SEARCH and CYCLE clauses.
This is standard SQL syntax attached to a recursive CTE to compute a
depth- or breadth-first ordering and cycle detection, respectively.
This is just convenience syntax for what you can already do manually.
The original discussion about recursiv
On Mon, 27 Apr 2020 at 00:37, Andy Fan wrote:
> I was feeling that we may have to maintain some extra status if we use hash
> table rather than tuple store, but that might be not a major concern. I can
> wait and see your patch.
I've posted the patch and lots of details about it in
https://postg
Hackers,
Over on [1], Heikki mentioned about the usefulness of caching results
from parameterized subplans so that they could be used again for
subsequent scans which have the same parameters as a previous scan.
On [2], I mentioned that parameterized nested loop joins could see
similar gains with
On Wed, 2020-05-20 at 13:17 +0200, Jürgen Purtz wrote:
> > FWIW, I feel somewhat like Alvaro on that point; I use those terms
> > synonymously,
> > perhaps distinguishing between a "started cluster" and a "stopped cluster".
> > After all, "cluster" refers to "a cluster of databases", which are the
On 19.05.20 08:17, Laurenz Albe wrote:
On Mon, 2020-05-18 at 18:08 +0200, Jürgen Purtz wrote:
cluster/instance: PG (mainly) consists of a group of processes that commonly
act on shared buffers. The processes are very closely related to each other
and with the buffers. They exist altogether or no
Em qua., 20 de mai. de 2020 às 00:09, Thomas Munro
escreveu:
> On Wed, May 20, 2020 at 2:23 PM Amit Kapila
> wrote:
> > Good experiment. IIRC, we have discussed a similar idea during the
> > development of this feature but we haven't seen any better results by
> > allocating in ranges on the sy
On Tue, May 19, 2020 at 7:35 PM Etsuro Fujita wrote:
> On Mon, May 18, 2020 at 7:45 PM Richard Guo wrote:
> > In this same README doc, another suspicious typo to me, which happens in
> > section "Optimizer Functions", is in the prefix to query_planner(),
> > we should have three dashes, rather th
> On 20 May 2020, at 11:52, Peter Eisentraut
> wrote:
> Or should this file be excluded, since it's generated?
That would get my vote. Generated files where we don't control the generator
can be excluded.
cheers ./daniel
> On 20 May 2020, at 11:38, Guillaume Lelarge wrote:
> Actually, "dump all extensions" (#3) would make sense to me, and has my vote.
Wouldn't that open for another set of problems when running with --schema=bar
and getting errors on restoring for relocatable extensions like these:
CREAT
If I run pgindent on a built tree on macos, I get this error
Failure in ./src/backend/utils/probes.h: Error@375: Stuff missing from
end of file
The file in question is built by the dtrace command. I have attached it
here.
Is this something to fix in pgindent? Or should this file be exclud
Le mer. 20 mai 2020 à 11:26, Daniel Gustafsson a écrit :
> > On 20 May 2020, at 10:06, Guillaume Lelarge
> wrote:
>
> > I was wondering the reason behind this choice. If anyone knows, I'd be
> happy to hear about it.
>
> Extensions were dumped unconditionally in the beginning, but it was
> chang
> On 20 May 2020, at 10:06, Guillaume Lelarge wrote:
> I was wondering the reason behind this choice. If anyone knows, I'd be happy
> to hear about it.
Extensions were dumped unconditionally in the beginning, but it was changed to
match how procedural language definitions were dumped.
> * it's
On Wed, 2020-05-20 at 10:06 +0200, Guillaume Lelarge wrote:
> I've discovered something today that I didn't really expect.
> When a user dumps a database with the --schema flag of pg_dump,
> extensions in this schema aren't dumped. As far as I can tell,
> the documentation isn't clear about this ("
On 2020-05-20 07:56, Michael Paquier wrote:
On Tue, May 19, 2020 at 02:33:40PM +0200, Daniel Gustafsson wrote:
Since commit 74a308cf5221f we use explicit_bzero on pgpass and connhost
password in libpq, but not sslpassword which seems an oversight. The attached
performs an explicit_bzero before
Hello,
I've discovered something today that I didn't really expect. When a user
dumps a database with the --schema flag of pg_dump, extensions in this
schema aren't dumped. As far as I can tell, the documentation isn't clear
about this ("Dump only schemas matching pattern; this selects both the
sc
On 2020-05-20 09:13, Michael Paquier wrote:
On Tue, May 19, 2020 at 01:02:12PM +0200, Peter Eisentraut wrote:
That thread didn't resolve why check_canonical_path() is necessary there.
Maybe the existing uses could be removed?
This would impact log_directory, external_pid_file,
stats_temp_direc
On 20.05.2020 10:36, Noah Misch wrote:
On Wed, May 20, 2020 at 10:23:37AM +0300, Konstantin Knizhnik wrote:
On 20.05.2020 06:05, Noah Misch wrote:
On Tue, May 19, 2020 at 04:07:29PM +0300, Konstantin Knizhnik wrote:
Definition of pg_atomic_compare_exchange_u64 requires alignment of expected
On Wed, May 20, 2020 at 10:23:37AM +0300, Konstantin Knizhnik wrote:
> On 20.05.2020 06:05, Noah Misch wrote:
> >On Tue, May 19, 2020 at 04:07:29PM +0300, Konstantin Knizhnik wrote:
> >>Definition of pg_atomic_compare_exchange_u64 requires alignment of expected
> >>pointer on 8-byte boundary.
> >>
On 20.05.2020 08:10, Andres Freund wrote:
Hi,
On May 19, 2020 8:05:00 PM PDT, Noah Misch wrote:
On Tue, May 19, 2020 at 04:07:29PM +0300, Konstantin Knizhnik wrote:
Definition of pg_atomic_compare_exchange_u64 requires alignment of
expected
pointer on 8-byte boundary.
pg_atomic_compare_
On 20.05.2020 06:05, Noah Misch wrote:
On Tue, May 19, 2020 at 04:07:29PM +0300, Konstantin Knizhnik wrote:
Definition of pg_atomic_compare_exchange_u64 requires alignment of expected
pointer on 8-byte boundary.
pg_atomic_compare_exchange_u64(volatile pg_atomic_uint64 *ptr,
On Tue, May 19, 2020 at 01:02:12PM +0200, Peter Eisentraut wrote:
> That thread didn't resolve why check_canonical_path() is necessary there.
> Maybe the existing uses could be removed?
This would impact log_directory, external_pid_file,
stats_temp_directory, where it is still useful to show to th
On Tue, May 19, 2020 at 09:32:15AM -0400, Tom Lane wrote:
> Hm, I'm pretty certain that data_directory does not need this because
> canonicalization is done elsewhere; the most that you could accomplish
> there is to cause problems. Dunno about the rest.
Hmm. I missed that this is getting done i
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