Re: perlcritic script

2018-05-08 Thread Peter Eisentraut
On 5/8/18 16:51, Tom Lane wrote: > Peter Eisentraut writes: >> On 5/8/18 13:57, Andrew Dunstan wrote: >>> + # take executable files that file(1) thinks are perl files >>> + find . -type f -perm -100 -exec file {} \; -print | >>> + egrep -i ':.*perl[0-9]*\>'

Re: perlcritic script

2018-05-08 Thread Tom Lane
Peter Eisentraut writes: > On 5/8/18 13:57, Andrew Dunstan wrote: >> +# take executable files that file(1) thinks are perl files >> +find . -type f -perm -100 -exec file {} \; -print | >> +egrep -i ':.*perl[0-9]*\>' | > How portable is that? Well,

Re: Cast jsonb to numeric, int, float, bool

2018-05-08 Thread Tom Lane
Teodor Sigaev writes: > Thanks for your idea, patch is attached Looks mostly fine from here. A couple nitpicks: * s/translable/translatable/ * Personally I'd try harder to make the lookup table constant, that is + static const struct + { + enum

Re: [HACKERS] WIP Patch: Pgbench Serialization and deadlock errors

2018-05-08 Thread Fabien COELHO
Hello Alvaro, I think that I'll have time for a round of review in the first half of July. Providing a rebased patch before then would be nice. Note that even in the absence of a rebased patch, you can apply to an older checkout if you have some limited window of time for a review. Yes,

Re: perlcritic script

2018-05-08 Thread Peter Eisentraut
On 5/8/18 13:57, Andrew Dunstan wrote: > + # take executable files that file(1) thinks are perl files > + find . -type f -perm -100 -exec file {} \; -print | > + egrep -i ':.*perl[0-9]*\>' | How portable is that? -- Peter Eisentraut http://www.2ndQuadrant.com/

Re: [HACKERS] Parallel Append implementation

2018-05-08 Thread Thomas Munro
On Wed, May 9, 2018 at 1:15 AM, Robert Haas wrote: > On Tue, May 8, 2018 at 12:10 AM, Thomas Munro > wrote: >> It's not a scan, it's not a join and it's not an aggregation so I >> think it needs to be in a new as the same level as those >>

Re: [HACKERS] Cutting initdb's runtime (Perl question embedded)

2018-05-08 Thread Tom Lane
Resurrecting this old thread ... I decided it'd be interesting to re-examine where initdb's runtime is going, seeing that we just got done with a lot of bootstrap data restructuring. I stuck some timing code into initdb, and got results like this: creating directory

Re: perlcritic script

2018-05-08 Thread Tels
Moin, On Tue, May 8, 2018 5:03 pm, Peter Eisentraut wrote: > On 5/8/18 16:51, Tom Lane wrote: >> Peter Eisentraut writes: >>> On 5/8/18 13:57, Andrew Dunstan wrote: + # take executable files that file(1) thinks are perl files + find . -type f -perm

Re: Global snapshots

2018-05-08 Thread Stas Kelvich
> On 7 May 2018, at 20:04, Robert Haas wrote: > > But what happens if a transaction starts on node A at time T0 but > first touches node B at a much later time T1, such that T1 - T0 > > global_snapshot_defer_time? > Such transaction will get "global snapshot too old"

Re: [HACKERS] WIP Patch: Pgbench Serialization and deadlock errors

2018-05-08 Thread Alvaro Herrera
Hello, Fabien COELHO wrote: > > Looking over the diff, I find that this patch tries to do too much and > > needs to be split up. > > Yep, I agree that it would help the reviewing process. On the other hand I > have bad memories about maintaining dependent patches which interfere >

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Alvaro Herrera
So I found that this query also crashed (using your rig), create table coercepart (a varchar) partition by list (a); create table coercepart_ab partition of coercepart for values in ('ab'); create table coercepart_bc partition of coercepart for values in ('bc'); create table coercepart_cd

Re: [HACKERS] WIP Patch: Pgbench Serialization and deadlock errors

2018-05-08 Thread Fabien COELHO
Hello Marina, FYI the v8 patch does not apply anymore, mostly because of a recent perl reindentation. I think that I'll have time for a round of review in the first half of July. Providing a rebased patch before then would be nice. -- Fabien.

Re: no partition pruning when partitioning using array type

2018-05-08 Thread Amit Langote
On 2018/03/01 17:16, Amit Langote wrote: > Added this to CF (actually moved to the September one after first having > added it to the CF that is just getting started). > > It seems to me that we don't need to go with my originally proposed > approach to teach predtest.c to strip RelabelType

Re: Having query cache in core

2018-05-08 Thread Tatsuo Ishii
> On 07/05/18 05:47, Tom Lane wrote: >> Tatsuo Ishii writes: >>> Does anybody think having in-memory query result cache in core is a >>> good idea? >> No. > > Agreed. > > You could probably write an extension for that, though. I think the > planner hook and custom scans give

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Michael Paquier
On Tue, May 08, 2018 at 07:05:46PM -0300, Alvaro Herrera wrote: > The reason for this crash is that gen_partprune_steps_internal() is > unable to generate any steps for the clause -- which is natural, since > the operator is not in a btree opclass. There are various callers > of

Re: Should we add GUCs to allow partition pruning to be disabled?

2018-05-08 Thread Amit Langote
Hi David. Thanks for addressing my comments. On 2018/05/07 15:00, David Rowley wrote: > v2 patch is attached. Looks good to me. Thanks, Amit

Re: Having query cache in core

2018-05-08 Thread Michael Paquier
On Wed, May 09, 2018 at 09:04:04AM +0900, Tatsuo Ishii wrote: > I have simulated the idea and I wonder how to implement the query > result cache on the streaming standby servers because no DML/DDL are > executed on standby servers, that makes it impossible to invalidate > the query cache. Probably

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Amit Langote
On 2018/05/09 11:31, David Rowley wrote: > On 9 May 2018 at 14:29, Amit Langote wrote: >> On 2018/05/09 11:20, Michael Paquier wrote: >>> While looking at this code, is there any reason to not make >>> gen_partprune_steps static? This is only used in partprune.c

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread David Rowley
On 9 May 2018 at 14:29, Amit Langote wrote: > On 2018/05/09 11:20, Michael Paquier wrote: >> While looking at this code, is there any reason to not make >> gen_partprune_steps static? This is only used in partprune.c for now, >> so the intention is to make it

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Amit Langote
On 2018/05/09 11:20, Michael Paquier wrote: > While looking at this code, is there any reason to not make > gen_partprune_steps static? This is only used in partprune.c for now, > so the intention is to make it available for future patches? Yeah, making it static might be a good idea. I had

Re: Oddity in tuple routing for foreign partitions

2018-05-08 Thread Etsuro Fujita
(2018/05/03 9:29), Robert Haas wrote: On Wed, May 2, 2018 at 7:06 AM, Etsuro Fujita wrote: Here is a small patch to remove a no-longer-needed cast in postgresBeginForeignInsert(). Committed. Thanks! Best regards, Etsuro Fujita

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Amit Langote
Hi. On 2018/05/09 7:05, Alvaro Herrera wrote: > So I found that this query also crashed (using your rig), > > create table coercepart (a varchar) partition by list (a); > create table coercepart_ab partition of coercepart for values in ('ab'); > create table coercepart_bc partition of coercepart

Re: Should we add GUCs to allow partition pruning to be disabled?

2018-05-08 Thread David Rowley
Thanks for reviewing again. On 9 May 2018 at 01:32, Justin Pryzby wrote: > On Mon, May 07, 2018 at 06:00:59PM +1200, David Rowley wrote: >> Many thanks for reviewing this. > > 2nd round - from the minimalist department: > > +partitions which cannot possibly contain any

Re: parallel.sgml for Gather with InitPlans

2018-05-08 Thread Amit Kapila
On Tue, May 8, 2018 at 5:27 PM, Robert Haas wrote: > On Mon, May 7, 2018 at 11:34 PM, Amit Kapila wrote: >> I think we can cover InitPlan and Subplans that can be parallelized in >> a separate section "Parallel Subplans" or some other heading. I

RE: Having query cache in core

2018-05-08 Thread Tsunakawa, Takayuki
From: Robert Haas [mailto:robertmh...@gmail.com] > That's not my experience. I agree that plan caching isn't important > for long-running queries, but I think it *is* potentially important > for fast queries with fast planning time. Even when the planning time > is fast, it can be a significant

Re: [Suspect SPAM] Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Amit Langote
Thank you Marina for the report and Michael for following up. On 2018/05/07 16:56, Michael Paquier wrote: > On Mon, May 07, 2018 at 10:37:10AM +0900, Michael Paquier wrote: >> On Fri, May 04, 2018 at 12:32:23PM +0300, Marina Polyakova wrote: >>> I got a similar server crash as in [1] on the

Re: Porting PG Extension from UNIX to Windows

2018-05-08 Thread Pavlo Golub
Greetings, Alexander. You wrote 08.05.2018, 9:42: > 25.04.2018 11:45, insaf.k wrote: > > I've done some research regarding compiling in Windows. I > am not sure in what way I should compile the extension. > AFAIK, Visual Studio is not POSIX compliant and so I'll have

Re: [Suspect SPAM] Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Michael Paquier
On Tue, May 08, 2018 at 04:07:41PM +0900, Amit Langote wrote: > I have to agree to go with this conservative approach for now. Although > we might be able to evaluate the array elements by applying the coercion > specified by ArrayCoerceExpr, let's save that as an improvement to be > pursued

Re: Porting PG Extension from UNIX to Windows

2018-05-08 Thread Alexander Lakhin
25.04.2018 11:45, insaf.k wrote: I've done some research regarding compiling in Windows. I am not sure in what way I should compile the extension. AFAIK, Visual Studio is not POSIX compliant and so I'll have to rewrite all those POSIX calls using Windows API. So it's better to compile the

Re: Optimze usage of immutable functions as relation

2018-05-08 Thread Andrew Gierth
> "Aleksandr" == Aleksandr Parfenov writes: >> From an implementation point of view your patch is obviously broken >> in many ways (starting with not checking varattno anywhere, and not >> actually checking anywhere if the expression is volatile). Aleksandr>

Exposing guc_malloc/strdup/realloc for plugins?

2018-05-08 Thread Michael Paquier
Hi all, While hacking on an extension, I have finished by doing things similar to guc_malloc & friends for the allocation of a GUC parameter for malloc portability. While that's not really a big deal to copy/paste this code, I am wondering if it would make sense to expose them for extension

Re: Expression errors with "FOR UPDATE" and postgres_fdw with partition wise join enabled.

2018-05-08 Thread Ashutosh Bapat
On Tue, May 1, 2018 at 5:00 PM, Etsuro Fujita wrote: > (2018/04/27 14:40), Ashutosh Bapat wrote: >> >> Here's updated patch set. > > > Thanks for updating the patch! Here are my review comments on patch >

Re: Porting PG Extension from UNIX to Windows

2018-05-08 Thread Alexander Lakhin
Hello Pavel, 08.05.2018 11:19, Pavlo Golub wrote: Cool idea. - Why are you using x86 version of MSYS2? We build PostgresPro for x86 and x64 so I choose to use x86 version as a common denominator to run the same script in 32-bit Windows. (When running on 64-bit Windows any (x86/x64) version of

Re: doc fixes: vacuum_cleanup_index_scale_factor

2018-05-08 Thread Alexander Korotkov
Hi, Justin! Thank you for revising documentation patch. On Mon, May 7, 2018 at 7:55 PM, Justin Pryzby wrote: > On Mon, May 07, 2018 at 07:26:25PM +0300, Alexander Korotkov wrote: > > Hi! > > > > I've revised docs and comments, and also made some fixes in the code. > > See

Re: Optimze usage of immutable functions as relation

2018-05-08 Thread Aleksandr Parfenov
Hello Andrew, Thank you for the review of the patch. On Fri, 04 May 2018 08:37:31 +0100 Andrew Gierth wrote: > From an implementation point of view your patch is obviously broken in > many ways (starting with not checking varattno anywhere, and not > actually

Re: parallel.sgml for Gather with InitPlans

2018-05-08 Thread Robert Haas
On Mon, May 7, 2018 at 11:34 PM, Amit Kapila wrote: > Is this correct? See below example: That's not a counterexample to what I wrote. When parallelism is used, the InitPlan has to be attached to a parallel-restricted node, and it is: Gather. It's true that in the

Re: [HACKERS] WIP Patch: Pgbench Serialization and deadlock errors

2018-05-08 Thread Alvaro Herrera
Fabien COELHO wrote: > I think that I'll have time for a round of review in the first half of July. > Providing a rebased patch before then would be nice. Note that even in the absence of a rebased patch, you can apply to an older checkout if you have some limited window of time for a review.

Re: doc fixes: vacuum_cleanup_index_scale_factor

2018-05-08 Thread Justin Pryzby
3rd iteration ; thanks for bearing with me. On Tue, May 08, 2018 at 12:35:00PM +0300, Alexander Korotkov wrote: > Hi, Justin! > > Thank you for revising documentation patch. > > On Mon, May 7, 2018 at 7:55 PM, Justin Pryzby wrote: +In order to detect stale index

Re: Bug Report: Error caused due to wrong ordering of filters

2018-05-08 Thread Andrew Gierth
> "Ekta" == Ekta Khanna writes: Ekta> Hello PGSQL Hackers, Ekta> We have come across the following issue on Postgres Ekta> REL_10_STABLE. Below is the repro: [...] Ekta> In the plan, we see that planner merges the quals from FROM Ekta> clause and the WHERE clause

Re: Built-in connection pooling

2018-05-08 Thread Konstantin Knizhnik
On 05.05.2018 00:54, Merlin Moncure wrote: On Fri, May 4, 2018 at 2:25 PM, Robert Haas wrote: On Fri, May 4, 2018 at 11:22 AM, Merlin Moncure wrote: If we are breaking 1:1 backend:session relationship, what controls would we have to manage

Re: MAP syntax for arrays

2018-05-08 Thread Ildar Musin
On 08.05.2018 15:49, Ildar Musin wrote: select map (pow(x, 2) - 1 for x in array[1,2,3]); Sorry, the example should be: select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); ?column? --- {1,3,7,15,31} (1 row) -- Ildar Musin i.mu...@postgrespro.ru

Re: MAP syntax for arrays

2018-05-08 Thread Chapman Flack
On 05/08/2018 08:57 AM, Ildar Musin wrote: > > select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); I wonder how efficient an implementation would be possible strictly as a function, without grammar changes? While PostgreSQL certainly has extensions to and divergences from standard SQL syntax,

Re: perlcritic and perltidy

2018-05-08 Thread Peter Eisentraut
On 5/6/18 12:13, Andrew Dunstan wrote: > Essentially it adds some vertical whitespace to structures so that the > enclosing braces etc appear on their own lines. A very typical change > looks like this: > > - { code  => $code, > + { > +   code  =>

Re: Should we add GUCs to allow partition pruning to be disabled?

2018-05-08 Thread Justin Pryzby
On Mon, May 07, 2018 at 06:00:59PM +1200, David Rowley wrote: > Many thanks for reviewing this. 2nd round - from the minimalist department: +partitions which cannot possibly contain any matching records. maybe: partitions which cannot match any records. + +Partition pruning done

Re: MAP syntax for arrays

2018-05-08 Thread Alvaro Herrera
Peter Eisentraut wrote: > On 5/8/18 09:19, Chapman Flack wrote: > > On 05/08/2018 08:57 AM, Ildar Musin wrote: > >> > >> select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); > > > > I wonder how efficient an implementation would be possible strictly > > as a function, without grammar changes? >

Re: Cast jsonb to numeric, int, float, bool

2018-05-08 Thread Tom Lane
Teodor Sigaev writes: > Does anybody have an objections to patch? 1) Does this really pass muster from the translatability standpoint? I doubt it. I'd expect the translation of "cannot cast jsonb string to int4" to use a translated equivalent of "string", but this code will

Re: [HACKERS] Clock with Adaptive Replacement

2018-05-08 Thread Vladimir Sitnikov
> Oh, looks like I'm inventing another kind of bicycle :-( Do you think you could capture a trace or two from a more-or-less representative application/database? Discussion of algorithms makes little sense as we all lack traces to compare/validate. Vladimir

Re: [HACKERS] Clock with Adaptive Replacement

2018-05-08 Thread Jesper Pedersen
On 05/08/2018 11:35 AM, Vladimir Sitnikov wrote: Oh, looks like I'm inventing another kind of bicycle :-( Do you think you could capture a trace or two from a more-or-less representative application/database? Discussion of algorithms makes little sense as we all lack traces to

Re: [HACKERS] Clock with Adaptive Replacement

2018-05-08 Thread Vladimir Sitnikov
>I have work loads that I can repeat, so I can help with testing. That would be great. Do you think you could use DTrace to capture the trace? For instance, https://github.com/vlsi/pgsqlstat/blob/pgsqlio/pgsqlio Vladimir

Re: Cast jsonb to numeric, int, float, bool

2018-05-08 Thread Teodor Sigaev
1) Does this really pass muster from the translatability standpoint? I doubt it. Huh, I missed that. I think you want the callers to look like if (!JsonbExtractScalar(>root, ) || v.type != jbvNumeric) cannotCastJsonbValue(v.type, "double precision"); where the

Re: MAP syntax for arrays

2018-05-08 Thread Alvaro Herrera
Andrew Gierth wrote: > > "Andreas" == Andreas Karlsson writes: > > Andreas> It would be a pain if the SQL committee started using MAP for > Andreas> something. > > They already did - MAP is a non-reserved keyword in sql2016, used at > least with . Can't see any obvious

Re: SQL:2011 Valid-Time Support

2018-05-08 Thread Tom Lane
Paul Howells writes: > Has there been or is there any current effort to implement SQL:2011 > valid-time support in Postgres? Searching the archives, I can only find "valid-time" appearing in these threads related to temporal query processing:

Re: perlcritic and perltidy

2018-05-08 Thread Alvaro Herrera
Andrew Dunstan wrote: > Yes. there are separate settings for the three types of brackets. Here's > what happens if we restrict the vertical tightness settings to parentheses. > > I think that's an unambiguous improvement. LGTM. -- Álvaro Herrerahttps://www.2ndQuadrant.com/

Re: MAP syntax for arrays

2018-05-08 Thread Andrew Gierth
> "Andreas" == Andreas Karlsson writes: Andreas> It would be a pain if the SQL committee started using MAP for Andreas> something. They already did - MAP is a non-reserved keyword in sql2016, used at least with . Can't see any obvious conflict with use in expressions,

Re: cannot drop replication slot if server is running in single-user mode

2018-05-08 Thread Alvaro Herrera
Robert Haas wrote: > On Thu, Mar 29, 2018 at 5:51 PM, Andres Freund wrote: > >> > 2018-03-06 13:20:24.391 GMT [14869] ERROR: epoll_ctl() failed: Bad file > >> > descriptor > >> > >> I can confirm this bug exists in single-user mode. > > > > I'm not sure we need to do anything

Re: MAP syntax for arrays

2018-05-08 Thread Peter Eisentraut
On 5/8/18 10:18, Alvaro Herrera wrote: > Peter Eisentraut wrote: >> On 5/8/18 09:19, Chapman Flack wrote: >>> On 05/08/2018 08:57 AM, Ildar Musin wrote: select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); >>> >>> I wonder how efficient an implementation would be possible strictly >>>

SQL:2011 Valid-Time Support

2018-05-08 Thread Paul Howells
Hello All, I am sure this has been discussed somewhere but I have not found anything specific in the archives. Has there been or is there any current effort to implement SQL:2011 valid-time support in Postgres? I understand that there has been some efforts to implement some valid-time support

Re: Cast jsonb to numeric, int, float, bool

2018-05-08 Thread Tom Lane
I wrote: > 1) Does this really pass muster from the translatability standpoint? > I doubt it. After further thought about that, it seems that what we typically don't try to translate is SQL-standard type names, that is, error messages along the line of "blah blah blah type %s" are considered

Bug Report: Error caused due to wrong ordering of filters

2018-05-08 Thread Ekta Khanna
Hello PGSQL Hackers, We have come across the following issue on Postgres REL_10_STABLE. Below is the repro: CREATE TABLE foo (a int, b text); INSERT INTO foo values(1, '3'); SELECT * FROM (SELECT * FROM foo WHERE length(b)=8)x WHERE to_date(x.b,'MMDD') > '2018-05-04'; ERROR: source string

Re: perlcritic and perltidy

2018-05-08 Thread Stephen Frost
Greetings, * Michael Paquier (mich...@paquier.xyz) wrote: > On Sun, May 06, 2018 at 09:14:06PM -0400, Stephen Frost wrote: > > While I appreciate the support, I'm not sure that you're actually > > agreeing with me.. I was arguing that braces should be on their own > > line and therefore there

Re: perlcritic and perltidy

2018-05-08 Thread David Steele
On 5/8/18 8:11 AM, Stephen Frost wrote: > Greetings, > > * Michael Paquier (mich...@paquier.xyz) wrote: >> On Sun, May 06, 2018 at 09:14:06PM -0400, Stephen Frost wrote: >>> While I appreciate the support, I'm not sure that you're actually >>> agreeing with me.. I was arguing that braces should

Re: MAP syntax for arrays

2018-05-08 Thread Ildar Musin
Hello Tom, Ashutosh, On 07.05.2018 18:16, Tom Lane wrote: Ashutosh Bapat writes: Is there a way we can improve unnest() and array_agg() to match the performance you have specified by let's say optimizing the cases specially when those two are used together.

Re: [HACKERS] Parallel Append implementation

2018-05-08 Thread Robert Haas
On Tue, May 8, 2018 at 12:10 AM, Thomas Munro wrote: > It's not a scan, it's not a join and it's not an aggregation so I > think it needs to be in a new as the same level as those > others. It's a different kind of thing. I'm a little skeptical about that idea

Re: MAP syntax for arrays

2018-05-08 Thread Ildar Musin
On 08.05.2018 17:15, Peter Eisentraut wrote: On 5/8/18 09:19, Chapman Flack wrote: On 05/08/2018 08:57 AM, Ildar Musin wrote: select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); I wonder how efficient an implementation would be possible strictly as a function, without grammar changes?

Re: MAP syntax for arrays

2018-05-08 Thread Tom Lane
Peter Eisentraut writes: > On 5/8/18 10:18, Alvaro Herrera wrote: >> How would you invoke it? It seems you'd be forced to use EXECUTE in a >> plpgsql function, or a C function. > Yes, I was thinking about a C function. The thing actually implementing MAP would

Re: [HACKERS] Clock with Adaptive Replacement

2018-05-08 Thread Robert Haas
On Mon, May 7, 2018 at 12:54 PM, Юрий Соколов wrote: >> Even if we have that, or something with similar effects, it's still >> desirable to avoid bumping the usage count multiple times for accesses >> that happen close together in time. I don't really agree with Yura >>

Re: cannot drop replication slot if server is running in single-user mode

2018-05-08 Thread Robert Haas
On Thu, Mar 29, 2018 at 5:51 PM, Andres Freund wrote: >> > 2018-03-06 13:20:24.391 GMT [14869] ERROR: epoll_ctl() failed: Bad file >> > descriptor >> >> I can confirm this bug exists in single-user mode. > > I'm not sure we need to do anything about this, personally. This

Re: MAP syntax for arrays

2018-05-08 Thread Chapman Flack
On 05/08/2018 09:19 AM, Chapman Flack wrote: > > While PostgreSQL certainly has extensions to and divergences from > standard SQL syntax, some historical and some recent, it seems like > there ought to be a highish bar for adding new ones; or, looking at it > another way, has this feature been

Re: Cast jsonb to numeric, int, float, bool

2018-05-08 Thread Teodor Sigaev
How about "cannot cast jsonb $json_type to $sql_type" where $json_type is the type inside the jsonb (e.g. string, number, boolean, array, object)? Yes, that sounds pretty good. Does anybody have an objections to patch? -- Teodor Sigaev E-mail:

Re: perlcritic and perltidy

2018-05-08 Thread Andrew Dunstan
On 05/08/2018 08:31 AM, David Steele wrote: > On 5/8/18 8:11 AM, Stephen Frost wrote: >> Greetings, >> >> * Michael Paquier (mich...@paquier.xyz) wrote: >>> On Sun, May 06, 2018 at 09:14:06PM -0400, Stephen Frost wrote: While I appreciate the support, I'm not sure that you're actually

Re: cannot drop replication slot if server is running in single-user mode

2018-05-08 Thread Alvaro Herrera
Alvaro Herrera wrote: > Robert Haas wrote: > > On Thu, Mar 29, 2018 at 5:51 PM, Andres Freund wrote: > > >> > 2018-03-06 13:20:24.391 GMT [14869] ERROR: epoll_ctl() failed: Bad > > >> > file > > >> > descriptor > > >> > > >> I can confirm this bug exists in single-user mode.

Re: SQL:2011 Valid-Time Support

2018-05-08 Thread Peter Eisentraut
On 5/8/18 11:31, Tom Lane wrote: > Paul Howells writes: >> Has there been or is there any current effort to implement SQL:2011 >> valid-time support in Postgres? > > Searching the archives, I can only find "valid-time" appearing in these > threads related to

Re: perlcritic and perltidy

2018-05-08 Thread Peter Eisentraut
On 5/8/18 11:39, Alvaro Herrera wrote: > Andrew Dunstan wrote: > >> Yes. there are separate settings for the three types of brackets. Here's >> what happens if we restrict the vertical tightness settings to parentheses. >> >> I think that's an unambiguous improvement. > > LGTM. Yes, that looks

Re: perlcritic and perltidy

2018-05-08 Thread Stephen Frost
Greetings, * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > On 05/08/2018 10:06 AM, Andrew Dunstan wrote: > > { find . -type f -a \( -name > > '*.pl' -o -name '*.pm' \) -print; find . -type f -perm -100 > > -exec file {} \; -print    | egrep -i > >

Re: perlcritic and perltidy

2018-05-08 Thread Andrew Dunstan
On 05/08/2018 12:51 PM, Stephen Frost wrote: > Greetings, > > * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: >> On 05/08/2018 10:06 AM, Andrew Dunstan wrote: >>> { find . -type f -a \( -name >>> '*.pl' -o -name '*.pm' \) -print; find . -type f -perm -100 >>> -exec file

Re: perlcritic and perltidy

2018-05-08 Thread Andrew Dunstan
On 05/08/2018 10:06 AM, Andrew Dunstan wrote: > { find . -type f -a \( -name > '*.pl' -o -name '*.pm' \) -print; find . -type f -perm -100 > -exec file {} \; -print    | egrep -i > ':.*perl[0-9]*\>'    | cut -d: -f1; } | sort -u  | > xargs

Re: [HACKERS] path toward faster partition pruning

2018-05-08 Thread Alvaro Herrera
Michael Paquier wrote: > So the problem appears when an expression needs to use > COERCION_PATH_ARRAYCOERCE for a type coercion from one type to another, > which requires an execution state to be able to build the list of > elements. The clause matching happens at planning state, so while there

Re: perlcritic and perltidy

2018-05-08 Thread Alvaro Herrera
Stephen Frost wrote: > * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > > > - 'XLogRecPtr'=> 'pg_lsn'); > > + 'XLogRecPtr'=> 'pg_lsn',); > > There's not much point adding the ',' unless you're also putting the > ');' on the next line, is there..? > > Or is

Re: perlcritic and perltidy

2018-05-08 Thread Stephen Frost
Andrew, * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > On 05/08/2018 12:51 PM, Stephen Frost wrote: > > * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > > There's not much point adding the ',' unless you're also putting the > > ');' on the next line, is there..? > > No, not

Re: Exposing guc_malloc/strdup/realloc for plugins?

2018-05-08 Thread Euler Taveira
2018-05-08 3:46 GMT-03:00 Michael Paquier : > While hacking on an extension, I have finished by doing things similar > to guc_malloc & friends for the allocation of a GUC parameter for malloc > portability. While that's not really a big deal to copy/paste this > code, I am

Re: MAP syntax for arrays

2018-05-08 Thread Peter Eisentraut
On 5/8/18 09:19, Chapman Flack wrote: > On 05/08/2018 08:57 AM, Ildar Musin wrote: >> >> select map (pow(2, x) - 1 for x in array[1,2,3,4,5]); > > I wonder how efficient an implementation would be possible strictly > as a function, without grammar changes? Yeah, you can pass a function to

Re: [HACKERS] Clock with Adaptive Replacement

2018-05-08 Thread Юрий Соколов
2018-05-08 16:21 GMT+03:00 Robert Haas : > > On Mon, May 7, 2018 at 12:54 PM, Юрий Соколов wrote: > >> Even if we have that, or something with similar effects, it's still > >> desirable to avoid bumping the usage count multiple times for accesses >

Re: MAP syntax for arrays

2018-05-08 Thread Andreas Karlsson
On 05/08/2018 02:49 PM, Ildar Musin wrote: The main point of this patch was about convenience; the performance thing came out later just as a side effect :) Many users are familiar with "map/reduce/filter" concept that many languages (not only functional ones) utilized. And my though was that it

Re: cannot drop replication slot if server is running in single-user mode

2018-05-08 Thread Tom Lane
Robert Haas writes: > On Thu, Mar 29, 2018 at 5:51 PM, Andres Freund wrote: >> I'm not sure we need to do anything about this, personally. This seems >> like a fairly rare thing to do in a mode that's definitely not intended >> to be general purpose. >

Re: perlcritic and perltidy

2018-05-08 Thread Stephen Frost
Andrew, * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > On 05/08/2018 01:18 PM, Stephen Frost wrote: > > * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > >> On 05/08/2018 12:51 PM, Stephen Frost wrote: > >>> * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: > >>>

Re: perlcritic and perltidy

2018-05-08 Thread Andrew Dunstan
On 05/08/2018 01:18 PM, Stephen Frost wrote: > Andrew, > > * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: >> On 05/08/2018 12:51 PM, Stephen Frost wrote: >>> * Andrew Dunstan (andrew.duns...@2ndquadrant.com) wrote: >>> There's not much point adding the ',' unless you're also putting

perlcritic script

2018-05-08 Thread Andrew Dunstan
Here's a small patch to add a script to call perlcritic, in the same way that we have a script to call perltidy. Is also includes a perlcriticrc file containing a policy to allow octal constants with leading zeros. That's the only core severity 5 policy we are currently no in compliance with.