Re: [HACKERS] jsonb and nested hstore

2014-01-28 Thread Josh Berkus
On 01/28/2014 10:29 AM, Merlin Moncure wrote: In addition to this, the JSON vs JSONB datatype page really needs expansion and clarification. right: exactly. I'd be happy to help (such as I can) ...I wanted to see if jsonb to make it in on this 'fest (doc issues notwithstanding); it hasn't

Re: [HACKERS] Fwd: Request for error explaination || Adding a new integer in indextupleData Structure

2014-01-28 Thread Rohit Goyal
Rohit Goyal rhtgyl...@gmail.com writes: Hi All, I was trying to modify indextupledata structure by adding an integer variable. ButI faced an error message psql: FATAL: could not find tuple for opclass 10032. Could anyone please help me in resolving this issue. You broke a system

Re: [HACKERS] jsonb and nested hstore

2014-01-28 Thread Alvaro Herrera
Josh Berkus escribió: Or is this just about whitespace and line breaks? If the docs are going to be rehauled, please ignore my whitespace comments. -- Álvaro Herrerahttp://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training Services -- Sent via

Re: [HACKERS] jsonb and nested hstore

2014-01-28 Thread Josh Berkus
On 01/28/2014 10:56 AM, Alvaro Herrera wrote: Josh Berkus escribió: Or is this just about whitespace and line breaks? If the docs are going to be rehauled, please ignore my whitespace comments. I'm sure you'll find plenty to criticize in my version. ;-) -- Josh Berkus PostgreSQL

[HACKERS] Patch: regexp_matches variant returning an array of matching positions

2014-01-28 Thread Björn Harrtell
I've written a variant of regexp_matches called regexp_matches_positions which instead of returning matching substrings will return matching positions. I found use of this when processing OCR scanned text and wanted to prioritize matches based on their position. The patch is for discussion. I'd

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Greg Stark
On Tue, Jan 28, 2014 at 7:49 AM, Tom Lane t...@sss.pgh.pa.us wrote: Oh really. So, to clean up after their own ill-considered decision, they'd like to take useful information away from everybody. Well maybe. Or we want this useful information at a finer granularity than everyone or nobody and

Re: [HACKERS] [pgsql-advocacy] GSoC 2014 - mentors, students and admins

2014-01-28 Thread Stephen Frost
Thom, * Thom Brown (t...@linux.com) wrote: Application to Google Summer of Code 2014 can be made as of next Monday (3rd Feb), and then there will be a 12 day window in which to submit an application. This is just for PG to be a participating organization, right? There's a while before

Re: [HACKERS] [pgsql-advocacy] GSoC 2014 - mentors, students and admins

2014-01-28 Thread Maxence AHLOUCHE
Hi all, I'd very interesting in taking part in the GSoC with PostgreSQL, as a student. Being quite busy at the moment (exam time), I haven't had time to think of a subject yet, even though I could see some topics I found interesting. 2014-01-28 Josh Berkus j...@agliodbs.com On 01/28/2014 09:46

Re: [HACKERS] [pgsql-advocacy] GSoC 2014 - mentors, students and admins

2014-01-28 Thread Thom Brown
On 28 January 2014 19:43, Stephen Frost sfr...@snowman.net wrote: Thom, * Thom Brown (t...@linux.com) wrote: Application to Google Summer of Code 2014 can be made as of next Monday (3rd Feb), and then there will be a 12 day window in which to submit an application. This is just for PG to

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Greg Stark
On Tue, Jan 28, 2014 at 11:28 AM, Greg Stark st...@mit.edu wrote: Well maybe. Or we want this useful information at a finer granularity than everyone or nobody and given the choice we prefer to have it than not. Anyways, I don't feel incredibly strongly about this. I think we should default

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Josh Berkus
On 01/28/2014 07:27 AM, Greg Stark wrote: Why is application_name useful for users who aren't the DBA and aren't the user in question. The sql_query would probably be more useful than application_name but we hide that... I have non-privileged monitoring scripts do counts of connections by

Re: [HACKERS] UNION ALL on partitioned tables won't use indices.

2014-01-28 Thread Noah Misch
On Tue, Jan 28, 2014 at 06:53:32PM +0900, Kyotaro HORIGUCHI wrote: Hello, Thank you, and I' sorry to have kept you waiting. No hurry. The attached two patches are rebased to current 9.4dev HEAD and make check at the topmost directory and src/test/isolation are passed without error. One

Re: [HACKERS] Fwd: Request for error explaination || Adding a new integer in indextupleData Structure

2014-01-28 Thread Jeff Janes
On Tue, Jan 28, 2014 at 10:57 AM, Rohit Goyal rhtgyl...@gmail.com wrote: Hello, I started all the process again and configured my eclipse with raw postgresql code. First change i made in the code is I added *int i; *in indextupleData structure in itup.h. You should show us *exactly* where

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Greg Stark
On Tue, Jan 28, 2014 at 11:56 AM, Josh Berkus j...@agliodbs.com wrote: Really the only way we're going to solve this is to make column permissions on special system views fully configurable. For example, I would really like to GRANT an unpriv user access to the WAL columns in

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Tom Lane
Josh Berkus j...@agliodbs.com writes: For example, I would really like to GRANT an unpriv user access to the WAL columns in pg_stat_replication so that I can monitor replication delay without granting superuser permissions. Just out of curiosity, why is that superuser-only at all? AFAICS the

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Stephen Frost
Josh, * Josh Berkus (j...@agliodbs.com) wrote: Really the only way we're going to solve this is to make column permissions on special system views fully configurable. We really need to fully support column and row-level security to provide the kind of granularty which we do today (but force on

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Josh Berkus
On 01/28/2014 12:10 PM, Tom Lane wrote: Josh Berkus j...@agliodbs.com writes: For example, I would really like to GRANT an unpriv user access to the WAL columns in pg_stat_replication so that I can monitor replication delay without granting superuser permissions. Just out of curiosity, why

Re: [HACKERS] [PATCH] Negative Transition Aggregate Functions (WIP)

2014-01-28 Thread Florian Pflug
On Jan27, 2014, at 23:28 , Dean Rasheed dean.a.rash...@gmail.com wrote: strict transfn vs non-strict inv_transfn This case is explicitly forbidden, both in CREATE AGGREGATE and in the executor. To me, that seems overly restrictive --- if transfn is

Re: [HACKERS] proposal: hide application_name from other users

2014-01-28 Thread Stephen Frost
Greg, * Greg Stark (st...@mit.edu) wrote: On Tue, Jan 28, 2014 at 11:56 AM, Josh Berkus j...@agliodbs.com wrote: For example, I would really like to GRANT an unpriv user access to the WAL columns in pg_stat_replication so that I can monitor replication delay without granting superuser

Re: [HACKERS] Planning time in explain/explain analyze

2014-01-28 Thread Tom Lane
Robert Haas robertmh...@gmail.com writes: On Thu, Jan 9, 2014 at 11:45 PM, Tom Lane t...@sss.pgh.pa.us wrote: Uh, no, wasn't my suggestion. Doesn't that design imply measuring *every* planning cycle, explain or no? I was thinking more of just putting the timing calls into explain.c. The

Re: [HACKERS] new json funcs

2014-01-28 Thread Andrew Dunstan
On 01/28/2014 01:22 PM, Alvaro Herrera wrote: Josh Berkus wrote: On 01/27/2014 01:06 PM, Alvaro Herrera wrote: Andrew Dunstan escribió: I'm not sure I understand the need. This is the difference between the _text variants and their parents. Why would you call json_object_field when you want

Re: [HACKERS] fixing pg_ctl with relative paths

2014-01-28 Thread Bruce Momjian
On Mon, Jul 1, 2013 at 08:10:14PM -0400, Josh Kupershmidt wrote: On Thu, Jun 27, 2013 at 11:47 AM, Fujii Masao masao.fu...@gmail.com wrote: On Thu, Jun 27, 2013 at 10:36 AM, Josh Kupershmidt schmi...@gmail.com wrote: On Wed, Jun 26, 2013 at 12:22 PM, Fujii Masao masao.fu...@gmail.com

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Christian Kruse
Hi, On 28/01/14 16:43, Christian Kruse wrote: ereport(FATAL, (errmsg(could not map anonymous shared memory: %m), (errno == ENOMEM) ? errhint(This error usually means that PostgreSQL's

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Tom Lane
Christian Kruse christ...@2ndquadrant.com writes: According to http://llvm.org/bugs/show_bug.cgi?id=18644#c5 this is not a compiler bug but a difference between gcc and clang. Clang seems to use a left-to-right order of evaluation while gcc uses a right-to-left order of evaluation. So if

Re: [HACKERS] Patch: regexp_matches variant returning an array of matching positions

2014-01-28 Thread Alvaro Herrera
Björn Harrtell wrote: I've written a variant of regexp_matches called regexp_matches_positions which instead of returning matching substrings will return matching positions. I found use of this when processing OCR scanned text and wanted to prioritize matches based on their position.

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Jason Petersen
I realize Postgres’ codebase is probably intractably large to begin using a tool like splint (http://www.splint.org ), but this is exactly the sort of thing it’ll catch. I’m pretty sure it would have warned in this case that the code relies on an ordering of side effects that is left undefined

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Andres Freund
On 2014-01-28 16:19:11 -0500, Tom Lane wrote: Christian Kruse christ...@2ndquadrant.com writes: According to http://llvm.org/bugs/show_bug.cgi?id=18644#c5 this is not a compiler bug but a difference between gcc and clang. Clang seems to use a left-to-right order of evaluation while gcc uses

Re: [HACKERS] WIP patch (v2) for updatable security barrier views

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 5:02 AM, Simon Riggs si...@2ndquadrant.com wrote: I agree that this is being seen the wrong way around. The planner contains things it should not do, and as a result we are now discussing enhancing the code that is in the wrong place, which of course brings objections.

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Bruce Momjian
On Thu, Jun 27, 2013 at 05:31:54PM -0400, Tom Lane wrote: Alvaro Herrera alvhe...@2ndquadrant.com writes: Noah Misch wrote: Note that emacs and pgindent remain at odds over interior tabs in comments. When pgindent finds a double-space (typically after a sentence) ending at a tab stop, it

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Alvaro Herrera
Jason Petersen wrote: I realize Postgres’ codebase is probably intractably large to begin using a tool like splint (http://www.splint.org ), but this is exactly the sort of thing it’ll catch. I’m pretty sure it would have warned in this case that the code relies on an ordering of side effects

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Bruce Momjian
On Thu, Jun 27, 2013 at 09:54:45PM -0400, Tom Lane wrote: Bruce Momjian br...@momjian.us writes: Should we be using entab -s 3? IIUC, that wouldn't affect leading whitespace at all. What it would affect I think (outside of comment blocks) is whitespace between code and a same-line /* ...

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Andres Freund
On 2014-01-28 18:31:59 -0300, Alvaro Herrera wrote: Jason Petersen wrote: I realize Postgres’ codebase is probably intractably large to begin using a tool like splint (http://www.splint.org ), but this is exactly the sort of thing it’ll catch. I’m pretty sure it would have warned in this

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: I've rebased it here and am hacking on it still. Andres and I are going back and forth between our respective git repos hacking on this, and I think we're getting there, but I have a terminological question which I'd like

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Thom Brown
On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: I've rebased it here and am hacking on it still. Andres and I are going back and forth between our respective git repos hacking on this, and I think

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Andres Freund
On 2014-01-28 21:48:09 +, Thom Brown wrote: On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: I've rebased it here and am hacking on it still. Andres and I are going back and forth between our

Re: [HACKERS] Fwd: Request for error explaination || Adding a new integer in indextupleData Structure

2014-01-28 Thread Rohit Goyal
Hello, I started all the process again and configured my eclipse with raw postgresql code. First change i made in the code is I added *int i; *in indextupleData structure in itup.h. You should show us *exactly* where you added it. (Doing so is what diff was developed for, so please use

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Stephen Frost
* Alvaro Herrera (alvhe...@2ndquadrant.com) wrote: Well, we already have Coverity reports and the VIVA64 stuff posted last month. Did they not see these problems? Maybe they did, maybe not, but since there's a large number of false positives it's hard to tell. I don't know how many false

Re: [HACKERS] new json funcs

2014-01-28 Thread Marko Tiikkaja
Hi Andrew, On 1/24/14, 7:26 PM, Andrew Dunstan wrote: OK, here's the patch, this time with docs, thanks to Merlin Moncure and Josh Berkus for help with that. Thanks, this one is looking pretty good. A couple of small issues: - The oid 3195 of json_object_agg_transfn has been taken by a

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Thom Brown
On 28 January 2014 21:56, Andres Freund and...@2ndquadrant.com wrote: On 2014-01-28 21:48:09 +, Thom Brown wrote: On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: I've rebased it here and am

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Rod Taylor
On Tue, Jan 28, 2014 at 4:56 PM, Andres Freund and...@2ndquadrant.comwrote: On 2014-01-28 21:48:09 +, Thom Brown wrote: On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: I've rebased it here

Re: [HACKERS] new json funcs

2014-01-28 Thread Andrew Dunstan
On 01/28/2014 05:07 PM, Marko Tiikkaja wrote: Hi Andrew, On 1/24/14, 7:26 PM, Andrew Dunstan wrote: OK, here's the patch, this time with docs, thanks to Merlin Moncure and Josh Berkus for help with that. Thanks, this one is looking pretty good. A couple of small issues: - The oid 3195

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread David Fetter
On Tue, Jan 28, 2014 at 05:31:25PM -0500, Rod Taylor wrote: On Tue, Jan 28, 2014 at 4:56 PM, Andres Freund and...@2ndquadrant.comwrote: On 2014-01-28 21:48:09 +, Thom Brown wrote: On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM,

Re: [HACKERS] drop duplicate buffers in OS

2014-01-28 Thread Jeff Janes
On Wed, Jan 15, 2014 at 10:34 AM, Robert Haas robertmh...@gmail.com wrote: On Wed, Jan 15, 2014 at 1:53 AM, KONDO Mitsumasa kondo.mitsum...@lab.ntt.co.jp wrote: I create patch that can drop duplicate buffers in OS using usage_count alogorithm. I have developed this patch since last summer.

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Alvaro Herrera
Stephen Frost wrote: * Alvaro Herrera (alvhe...@2ndquadrant.com) wrote: Well, we already have Coverity reports and the VIVA64 stuff posted last month. Did they not see these problems? Maybe they did, maybe not, but since there's a large number of false positives it's hard to tell. I

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Alvaro Herrera
Bruce Momjian wrote: I see I already asked about entab -s 3. Let me see how hard it would be to modify entab. I cannot tell you what to waste your time on, of course, but I wonder if it'd be better spent trying to make something like astyle work for us. The entab/pg_bsd_indent combo is a bit

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Andreas Karlsson
On 01/28/2014 10:56 PM, Andres Freund wrote: On 2014-01-28 21:48:09 +, Thom Brown wrote: On 28 January 2014 21:37, Robert Haas robertmh...@gmail.com wrote: On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas robertmh...@gmail.com wrote: The point of Andres's patch set is to introduce a new

Re: [HACKERS] [PATCH] Support for pg_stat_archiver view

2014-01-28 Thread Michael Paquier
On Wed, Jan 29, 2014 at 3:03 AM, Fujii Masao masao.fu...@gmail.com wrote: On Tue, Jan 28, 2014 at 3:42 AM, Fujii Masao masao.fu...@gmail.com wrote: On Sat, Jan 25, 2014 at 3:19 PM, Michael Paquier michael.paqu...@gmail.com wrote: On Sat, Jan 25, 2014 at 5:41 AM, Fujii Masao

Re: [HACKERS] Weird error messages from Windows upon client death

2014-01-28 Thread Florian Pflug
On Jan28, 2014, at 19:19 , Jeff Janes jeff.ja...@gmail.com wrote: On windows, if the client gets terminated while sending data to the server, in a COPY for example, it results in some rather head-scratcher messages in the server log, for example: LOG: could not receive data from client:

Re: [HACKERS] [PATCH] Support for pg_stat_archiver view

2014-01-28 Thread Fujii Masao
On Wed, Jan 29, 2014 at 3:07 AM, Alvaro Herrera alvhe...@2ndquadrant.com wrote: Anybody knows about this patch? http://www.postgresql.org/message-id/508dfec9.4020...@uptime.jp Though I'm not sure whether Nagayasu is still working on that patch, it's worth thinking to introduce that together

Re: [HACKERS] [PATCH] Support for pg_stat_archiver view

2014-01-28 Thread Michael Paquier
On Wed, Jan 29, 2014 at 10:55 AM, Fujii Masao masao.fu...@gmail.com wrote: On Wed, Jan 29, 2014 at 3:07 AM, Alvaro Herrera alvhe...@2ndquadrant.com wrote: Anybody knows about this patch? http://www.postgresql.org/message-id/508dfec9.4020...@uptime.jp Though I'm not sure whether Nagayasu is

Re: [HACKERS] Suspicion of a compiler bug in clang: using ternary operator in ereport()

2014-01-28 Thread Tom Lane
Andres Freund and...@2ndquadrant.com writes: Absolutely. Probably best to save errno into a local just before the ereport. I think just resetting to edata-saved_errno is better and sufficient? -1 --- that field is nobody's business except elog.c's. regards, tom lane

Re: [HACKERS] Retain dynamic shared memory segments for postmaster lifetime

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 6:12 AM, Kyotaro HORIGUCHI horiguchi.kyot...@lab.ntt.co.jp wrote: I had a short look on this patch. - DSM implimentation seems divided into generic part (dsm.c) and platform dependent part(dsm_impl.c). This dsm_keep_segment puts WIN32 specific part directly into

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Bruce Momjian
On Tue, Jan 28, 2014 at 06:39:43PM -0300, Alvaro Herrera wrote: Bruce Momjian wrote: I see I already asked about entab -s 3. Let me see how hard it would be to modify entab. I cannot tell you what to waste your time on, of course, but I wonder if it'd be better spent trying to make

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Tom Lane
Bruce Momjian br...@momjian.us writes: I see I already asked about entab -s 3. Let me see how hard it would be to modify entab. TBH I'm not sure we should be changing pgindent at this late date, even if there is a good fix for its minor annoyances. When you changed its wrap behavior in 8.1, I

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Bruce Momjian
On Tue, Jan 28, 2014 at 10:40:10PM -0500, Tom Lane wrote: Bruce Momjian br...@momjian.us writes: I see I already asked about entab -s 3. Let me see how hard it would be to modify entab. TBH I'm not sure we should be changing pgindent at this late date, even if there is a good fix for its

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Tom Lane
Bruce Momjian br...@momjian.us writes: On Tue, Jan 28, 2014 at 10:40:10PM -0500, Tom Lane wrote: TBH I'm not sure we should be changing pgindent at this late date, even if there is a good fix for its minor annoyances. When you changed its wrap behavior in 8.1, I spent the next several years

Re: [HACKERS] Changeset Extraction v7.3

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 7:43 PM, Andreas Karlsson andr...@proxel.se wrote: I think physical and logical are fine and they seem to be well known terminology. Oracle uses those words and I have also seen many places use physical backup and logical backup, for example on Barman's homepage.

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 11:03 PM, Tom Lane t...@sss.pgh.pa.us wrote: Bruce Momjian br...@momjian.us writes: On Tue, Jan 28, 2014 at 10:40:10PM -0500, Tom Lane wrote: TBH I'm not sure we should be changing pgindent at this late date, even if there is a good fix for its minor annoyances. When

[HACKERS] Re: Patch: regexp_matches variant returning an array of matching positions

2014-01-28 Thread David Johnston
Alvaro Herrera-9 wrote Björn Harrtell wrote: I've written a variant of regexp_matches called regexp_matches_positions which instead of returning matching substrings will return matching positions. I found use of this when processing OCR scanned text and wanted to prioritize matches based on

Re: [HACKERS] Observed Compilation warning in WIN32 build

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 6:28 AM, Andres Freund and...@2ndquadrant.com wrote: On 2014-01-28 09:13:15 +, Rajeev rastogi wrote: I observed below WIN32 compilation warnings in postmaster.c (seems introduced by commit ea9df812d8502fff74e7bc37d61bdc7d66d77a7f Relax the requirement that all

Re: [HACKERS] Add force option to dropdb

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 9:01 AM, salah jubeh s_ju...@yahoo.com wrote: Hello Sawada, - This patch is not patched to master branch Sorry, My mistake //new connections are not allowed Corrected. I hope now the patch in better state, if somthing left, I will be glad to fix it Regards I'm not

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Andres Freund
On 2014-01-28 18:39:43 -0300, Alvaro Herrera wrote: Bruce Momjian wrote: I see I already asked about entab -s 3. Let me see how hard it would be to modify entab. I cannot tell you what to waste your time on, of course, but I wonder if it'd be better spent trying to make something like

Re: [HACKERS] [bug fix] pg_ctl always uses the same event source

2014-01-28 Thread Amit Kapila
On Fri, Jan 24, 2014 at 4:38 PM, MauMau maumau...@gmail.com wrote: How about below message: event source event_source_name is already registered. OK, I added several lines for this. Please check the attached patch. It gives the proper message, but even after error, the second message box

Re: [HACKERS] ALTER TABLE lock strength reduction patch is unsafe

2014-01-28 Thread Robert Haas
On Tue, Jan 28, 2014 at 12:36 PM, Alvaro Herrera alvhe...@2ndquadrant.com wrote: Bruce Momjian escribió: I have no problem removing the parameter if required to. In that case, I would like to leave the parameter in until mid beta, to allow greater certainty. Uhm. If we remove a GUC

Re: [HACKERS] Retain dynamic shared memory segments for postmaster lifetime

2014-01-28 Thread Amit Kapila
On Tue, Jan 28, 2014 at 4:42 PM, Kyotaro HORIGUCHI horiguchi.kyot...@lab.ntt.co.jp wrote: Hello, Currently there is no way user can keep the dsm segments if he wants for postmaster lifetime, so I have exposed a new API dsm_keep_segment() to implement the same. I had a short look on this

Re: [HACKERS] Wait free LW_SHARED acquisition - v0.2

2014-01-28 Thread Peter Geoghegan
On Fri, Nov 15, 2013 at 11:47 AM, Andres Freund and...@2ndquadrant.com wrote: 1) I've added an abstracted atomic ops implementation. Needs a fair amount of work, also submitted as a separate CF entry. (Patch 1 2) Commit 220b34331f77effdb46798ddd7cca0cffc1b2858 caused bitrot when applying

Re: [HACKERS] ALTER TABLE lock strength reduction patch is unsafe

2014-01-28 Thread Tom Lane
Robert Haas robertmh...@gmail.com writes: On Tue, Jan 28, 2014 at 12:36 PM, Alvaro Herrera alvhe...@2ndquadrant.com wrote: Honestly, I would prefer that we push a patch that has been thoroughly reviewed and in which we have more confidence, so that we can push without a GUC. This means mark

Re: [HACKERS] updated emacs configuration

2014-01-28 Thread Tom Lane
Robert Haas robertmh...@gmail.com writes: If this only affects a handful of places, then sure, let's go ahead and fix it. But if it's going to create a massive enough diff that we've gotta think about back-patching it, then IMHO it's totally not worth it. A quick grep search says there are

Re: [HACKERS] WIP patch (v2) for updatable security barrier views

2014-01-28 Thread Tom Lane
Kouhei Kaigai kai...@ak.jp.nec.com writes: Let me ask an elemental question. What is the reason why inheritance expansion logic should be located on the planner stage, not on the tail of rewriter? I think it's mostly historical. You would however have to think of a way to preserve the

Re: [HACKERS] Add min and max execute statement time in pg_stat_statement

2014-01-28 Thread Tom Lane
KONDO Mitsumasa kondo.mitsum...@lab.ntt.co.jp writes: By the way, latest pg_stat_statement might affect performance in Windows system. Because it uses fflush() system call every creating new entry in pg_stat_statements, and it calls many fread() to warm file cache. This statement doesn't

Re: [HACKERS] Re: Patch: regexp_matches variant returning an array of matching positions

2014-01-28 Thread Erik Rijkers
On Wed, January 29, 2014 05:16, David Johnston wrote: How does this resolve in the patch? SELECT regexp_matches('abcabc','((a)(b)(c))','g'); With the patch: testdb=# SELECT regexp_matches('abcabc','((a)(b)(c))','g'), regexp_matches_positions('abcabc','((a)(b)(c))'); regexp_matches |

[HACKERS] Re: Patch: regexp_matches variant returning an array of matching positions

2014-01-28 Thread David Johnston
Erik Rijkers wrote On Wed, January 29, 2014 05:16, David Johnston wrote: How does this resolve in the patch? SELECT regexp_matches('abcabc','((a)(b)(c))','g'); With the patch: testdb=# SELECT regexp_matches('abcabc','((a)(b)(c))','g'), regexp_matches_positions('abcabc','((a)(b)(c))');

Re: [HACKERS] WIP patch (v2) for updatable security barrier views

2014-01-28 Thread Kouhei Kaigai
Kouhei Kaigai kai...@ak.jp.nec.com writes: Let me ask an elemental question. What is the reason why inheritance expansion logic should be located on the planner stage, not on the tail of rewriter? I think it's mostly historical. You would however have to think of a way to preserve the

Re: [HACKERS] drop duplicate buffers in OS

2014-01-28 Thread KONDO Mitsumasa
Hi, Attached is latest patch. I change little bit at PinBuffer() in bufmgr.c. It will evict target clean file cache in OS more exactly. - if (!(buf-flags BM_FADVED) !(buf-flags BM_JUST_DIRTIED)) + if (!(buf-flags BM_DIRTY) !(buf-flags BM_FADVED) !(buf-flags BM_JUST_DIRTIED))

Re: [HACKERS] Add min and max execute statement time in pg_stat_statement

2014-01-28 Thread Peter Geoghegan
On Tue, Jan 28, 2014 at 10:51 PM, Tom Lane t...@sss.pgh.pa.us wrote: KONDO Mitsumasa kondo.mitsum...@lab.ntt.co.jp writes: By the way, latest pg_stat_statement might affect performance in Windows system. Because it uses fflush() system call every creating new entry in pg_stat_statements, and

Re: [HACKERS] Add min and max execute statement time in pg_stat_statement

2014-01-28 Thread KONDO Mitsumasa
(2014/01/29 15:51), Tom Lane wrote: KONDO Mitsumasa kondo.mitsum...@lab.ntt.co.jp writes: By the way, latest pg_stat_statement might affect performance in Windows system. Because it uses fflush() system call every creating new entry in pg_stat_statements, and it calls many fread() to warm

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