On Mon, Nov 18, 2019 at 7:48 PM Jinbao Chen wrote:
> In the test case above, the small table has 3000 tuples and 100 distinct
> values on column ‘a’.
> If we use small table as inner table. The chan length of the bucket is 30.
> And we need to
> search the whole chain on probing the hash
On Tue, Nov 19, 2019 at 6:40 AM Michael Paquier wrote:
>
> On Fri, Nov 15, 2019 at 12:07:15PM +0900, Michael Paquier wrote:
> > So, Heikki, are you planning to work more on that and commit a change
> > close to what has been proposed upthread in [1]? It sounds to me that
> > this has the
On Wed, Nov 13, 2019 5:34PM (GMT+9), Fujii Masao wrote:
> On Wed, Nov 13, 2019 at 3:57 PM k.jami...@fujitsu.com
> wrote:
> >
> > On Wed, Oct. 2, 2019 5:40 PM, Fujii Masao wrote:
> > > On Tue, Jul 10, 2018 at 3:04 PM Michael Paquier
> wrote:
> > > >
> > > > On Thu, Jul 05, 2018 at 01:42:20AM
On Fri, Nov 15, 2019 at 12:07:15PM +0900, Michael Paquier wrote:
> So, Heikki, are you planning to work more on that and commit a change
> close to what has been proposed upthread in [1]? It sounds to me that
> this has the advantage to be non-intrusive and a similar solution has
> been used for
> On 15/11/2019, at 10:20 AM, Tom Lane wrote:
>
> Gareth Palmer writes:
>>> On 19/08/2019, at 3:00 AM, Tom Lane wrote:
>>> Perhaps the way to resolve Peter's objection is to make the syntax
>>> more fully like UPDATE:
>>>INSERT INTO target SET c1 = x, c2 = y+z, ... FROM
On Tue, Nov 19, 2019 at 12:09 PM Tom Lane wrote:
> You should follow the logic in pg_wcswidth: compute PQmblen() first,
> and bail out if it's more than the remaining string length, otherwise
> it's ok to apply PQdsplen().
Got it. I was worried that it wasn't safe to call even PQmblen(),
> On 15/11/2019, at 10:20 AM, Tom Lane wrote:
>
> Gareth Palmer writes:
>>> On 19/08/2019, at 3:00 AM, Tom Lane wrote:
>>> Perhaps the way to resolve Peter's objection is to make the syntax
>>> more fully like UPDATE:
>>>INSERT INTO target SET c1 = x, c2 = y+z, ... FROM
Yamada-san,
Thanks for working on this.
On Wed, Nov 6, 2019 at 2:50 PM Tatsuro Yamada
wrote:
> I revised the patch as following because I realized counting the types of ext
> stats is not useful for users.
>
> - Attached new patch counts a number of ext stats instead the types of ext
>
On Mon, 18 Nov 2019 at 18:48, Nicolas Lutic wrote:
> Dear Hackers,
>
> After a drop database
>
with FORCE?
> , he tried to recover the data on the last inserted transaction by using
> the recovery_target_time.
> The issue is the database is present in the system catalog but the
> directory
On Tue, 19 Nov 2019 at 05:37, Jeremy Finzel wrote:
> We had a scenario today that was new to us. We had a logical replication
> slot that was severely far behind. Before dropping this logical slot, we
> made a physical point-in-time-recovery snapshot of the system with this
> logical slot.
>
>
parveen mehta writes:
> Thanks for providing valuable inputs into my concerns. In the last part you
> mentioned and i am quoting it here "would limit the parts of the system
> that would have to be cleansed of ASCII-isms to libpq and src/bin/.
> But that's already a nontrivial headache I
On Thu, Oct 24, 2019 at 6:48 PM Andres Freund wrote:
> Unfortunately I think the fix isn't all that trivial, due to the way we
> output the per-worker information at the end of ExplainNode(), by just
> dumping things into a string. It seems to me that a step in the right
> direction would be for
Thomas Munro writes:
> Right, a PQdsplen()/PQmblen() loop works nicely, as attached.
> I spotted a potential problem: I suppose I could write a PROMPT1 that
> includes an invalid multibyte sequence at the end of the buffer and
> trick PQmblen() or PQdsplen() into reading a few bytes past the
Hi,
On 2019-11-18 15:36:47 -0600, Jeremy Finzel wrote:
> We had a scenario today that was new to us. We had a logical replication
> slot that was severely far behind. Before dropping this logical slot, we
> made a physical point-in-time-recovery snapshot of the system with this
> logical slot.
> "Tom" == Tom Lane writes:
>> Well, one obvious completely general method is to teach the planner
>> (somehow) to spot conditions of the form
>> (a > $1 OR (a = $1 AND b > $2) OR (a = $1 AND b = $2 AND c > $3) ...)
>> etc. and make them indexable if the sense of the > or < operator at
We had a scenario today that was new to us. We had a logical replication
slot that was severely far behind. Before dropping this logical slot, we
made a physical point-in-time-recovery snapshot of the system with this
logical slot.
This logical slot was causing severe catalog bloat. We
On Tue, Nov 19, 2019 at 6:21 AM Tom Lane wrote:
> Thomas Munro writes:
> > Yeah. Maybe pg_wcswidth() would be OK though, and it's available in
> > psql, though I guess you'd have to make a copy with the escaped bits
> > stripped out.
>
> Right, you should use pg_wcswidth() or the underlying
Hello Martin,
The issue is resolved now and tests are fine for me.
I recompiled gcc trunk and the moonjelly is back to green.
Thanks!
--
Fabien.
Tom,
Thanks for providing valuable inputs into my concerns. In the last part you
mentioned and i am quoting it here "would limit the parts of the system
that would have to be cleansed of ASCII-isms to libpq and src/bin/.
But that's already a nontrivial headache I suspect." I am not clear on the
> I'll try to look into that with lower page sizes for relation and WAL
> pages.
The page size is totally unrelated to this bug. When you repro the redo
failure it is because the log record is being applied to an old page version.
The correct newer page version never got written because
_close was replaced by table_open,
> table_close
>
fresh rebase
Regards
Pavel
> Regards
>
> Pavel
>
schema-variables-20191118.patch.gz
Description: application/gzip
Hi,
On 2019-11-18 21:49:55 +0900, Michael Paquier wrote:
> +/* SQL SRF showing allocated shared memory */
> +Datum
> +pg_get_shmem_allocations(PG_FUNCTION_ARGS)
> This could be more talkative.
I don't really see what it'd say, except restate the function name as a
sentence? I think that kind of
Andrew Gierth writes:
> "Tom" == Tom Lane writes:
> Tom> Lastly, your proposed use-case has some attraction, but this
> Tom> proposal only supports it if the column you need to be differently
> Tom> sorted is textual. What if the sort columns are all numerics and
> Tom> timestamps?
> There
On 2019-Nov-15, Ranier Vilela wrote:
> Hi,
> Last time, I promise.
>
> It's probably not happening, but it can happen, I think.
This patch assumes that anything can happen after elog(ERROR). That's
wrong -- under ERROR or higher, elog() (as well as ereport) never
returns to the caller. If
Thomas Munro writes:
> On Mon, Nov 18, 2019 at 1:49 PM Alvaro Herrera
> wrote:
>> On 2019-Nov-18, Thomas Munro wrote:
>>> Nice idea. Here's one like that, that just does the counting at the
>>> end and looks out for readline control codes. It's pretty naive about
>>> what "width" means
On Fri, 2019-11-15 at 13:41 -0500, Tom Lane wrote:
> Laurenz Albe writes:
> > On Wed, 2019-11-13 at 17:17 -0500, Tom Lane wrote:
> > > It might be worth clarifying this point in section 5.7,
> > > https://www.postgresql.org/docs/devel/ddl-priv.html
> > > but let's not duplicate that in every ref/
Hi
I need advice.
ResetExprContext(econtext) is defined as
MemoryContextReset((econtext)->ecxt_per_tuple_memory).
I can register callback in MemoryContext but it is always cleaned on every
call to MemoryContextReset().
How to reset some fields of ExprContext ( living in per_query_memory ) when
On Mon, 18 Nov 2019 at 17:52, Amit Kapila wrote:
> I have one more question regarding this patch. It seems to me that
> the files opened via OpenTransientFile or OpenTemporaryFile are
> automatically closed at transaction end(abort), but that doesn't seem
> to be the case for files opened with
po 18. 11. 2019 v 7:39 odesílatel Pavel Stehule
napsal:
>
>
> po 18. 11. 2019 v 7:37 odesílatel Amit Kapila
> napsal:
>
>> On Mon, Nov 18, 2019 at 10:59 AM Pavel Stehule
>> wrote:
>> > po 18. 11. 2019 v 6:24 odesílatel Amit Kapila
>> napsal:
>> >>
>> >> On Mon, Nov 18, 2019 at 10:33 AM Pavel
On Thu, Nov 14, 2019 at 07:38:19PM -0800, Daniel Wood wrote:
> Sorry I missed one thing. Turn off full page writes.
Hmm. Linux FSes use typically 4kB pages. I'll try to look into that
with lower page sizes for relation and WAL pages.
> I'm running in an env. with atomic 8K writes.
What's
On Fri, Nov 15, 2019 at 03:55:28PM +0530, Amit Kapila wrote:
> I think the chances of getting an answer on ODBC related queries will
> be more if you post on pgsql-interfaces.
There is also a mailing list dedicated to Postgres ODBC:
https://www.postgresql.org/list/pgsql-odbc/
--
Michael
On Fri, Nov 15, 2019 at 11:59:34AM -0800, Andres Freund wrote:
> On 2019-11-15 14:43:09 -0500, Robert Haas wrote:
>> This never got applied, and that annoyed me again today, so here's a
>> new version that I've whacked around somewhat and propose to commit. I
>> ripped out the stuff pertaining to
On Fri, Nov 15, 2019 at 06:41:02PM -0300, Alvaro Herrera wrote:
> I don't quite understand why you backed off from switching to pread. It
> seemed a good change to me.
>
> [...]
>
> Having seek/open be a boolean "xlr_seek" seems a bit weird. Changed to
> an "operation" enum. (Maybe if we go
On Mon, Nov 18, 2019 at 5:20 PM Amit Kapila wrote:
>
> On Thu, Oct 3, 2019 at 4:48 PM Amit Khandekar wrote:
> >
> > On Wed, 18 Sep 2019 at 12:24, Amit Khandekar wrote:
> > > Probably, for now at least, what everyone seems to agree is to take my
> > > earlier attached patch forward.
> > >
> > >
On Mon, 18 Nov 2019 at 17:20, Amit Kapila wrote:
> I see that you have made changes in ReorderBufferRestoreChanges to use
> PathNameOpenFile, but not in ReorderBufferSerializeTXN. Is there a
> reason for the same? In my test environment, with the test provided
> by you, I got the error
Hello.
The issue is resolved now and tests are fine for me.
Martin
On Fri, 15 Nov 2019 at 13:11, Martin Liška wrote:
>
> Heh, it's me who now breaks postgresql build:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92529
>
> Martin
>
> On Fri, 15 Nov 2019 at 13:01, Fabien COELHO
> wrote:
> >
>
On Thu, Oct 3, 2019 at 4:48 PM Amit Khandekar wrote:
>
> On Wed, 18 Sep 2019 at 12:24, Amit Khandekar wrote:
> > Probably, for now at least, what everyone seems to agree is to take my
> > earlier attached patch forward.
> >
> > I am going to see if I can add a TAP test for the patch, and will
On Fri, Nov 15, 2019 at 4:19 PM Amit Kapila wrote:
>
> On Fri, Nov 15, 2019 at 4:01 PM Dilip Kumar wrote:
> >
> > On Fri, Nov 15, 2019 at 3:50 PM Amit Kapila wrote:
> > >
> > >
> > > Few other comments on this patch:
> > > 1.
> > > + case REORDER_BUFFER_CHANGE_INVALIDATION:
> > > +
> > > + /*
>
Dear Hackers,
A customer reported a strange behaviour on a PITR restoration.
After a drop database, he tried to recover the data on the last inserted
transaction by using the recovery_target_time.
The issue is the database is present in the system catalog but the
directory was still deleted.
On Tue, Nov 12, 2019 at 10:11 AM Amit Langote wrote:
> Initial
> syncing code can be easily modified to support any combination of
> source and target relations, but changes needed for real-time
> replication seem non-trivial.
I have spent some time hacking on this. With the attached updated
On Fri, Oct 18, 2019 at 10:08 AM Amit Kapila wrote:
>
> On Thu, Oct 17, 2019 at 10:51 AM Thomas Munro wrote:
> >
> > ===
> > Don't shut down Gather[Merge] early under Limit.
> >
> > Revert part of commit 19df1702f5.
> >
> > Early shutdown was added by that commit so that we could collect
> >
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