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PostgreSQL > pgsql-hackers > June 2013

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168 discussions - 2,428 posts

  • Folks, For 9.2, we adopted it as policy that anyone submitting a patch to a commitfest is expected to review at least one patch submitted by someone else. And that failure to do so would affect the ...
    Josh BerkusJosh Berkus
    Jun 24, 2013 at 4:41 am
    Jul 23, 2013 at 4:20 pm
  • In the "Redesigning checkpoint_segments" thread, many people opined that there should be a hard limit on the amount of disk space used for WAL ...
    Heikki LinnakangasHeikki Linnakangas
    Jun 6, 2013 at 2:01 pm
    Jun 22, 2013 at 3:03 pm
  • Here's my review of the WITH ORDINALITY patch. Overall I think that the patch is in good shape, and I think that this will be a very useful new feature, so I'm keen to see this committed. All the ...
    Dean RasheedDean Rasheed
    Jun 18, 2013 at 10:36 am
    Jul 31, 2013 at 6:50 pm
  • Looks like good results, with good measurements. Should be an interesting discussion. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
    Simon RiggsSimon Riggs
    Jun 10, 2013 at 7:48 pm
    Jul 25, 2013 at 10:07 am
  • Hi! I am rather pleased to announce the next version of the changeset extraction patchset. Thanks to help from a large number of people I think we are slowly getting to the point where it is getting ...
    Andres FreundAndres Freund
    Jun 14, 2013 at 10:47 pm
    Jul 23, 2013 at 8:51 am
  • Hello, We have already started a discussion on pgsql-hackers for the problem of taking fresh backup during the failback operation here is the link for that ...
    Samrat RevagadeSamrat Revagade
    Jun 14, 2013 at 9:11 am
    Jul 15, 2013 at 1:32 pm
  • Hi, Do we have any plans to implement Hash Partitioning, maybe I missing this feature? Sincerely yours, Yuri Levinsky, DBA Celltick Technologies Ltd., 32 Maskit St., Herzliya 46733, Israel Mobile ...
    Yuri LevinskyYuri Levinsky
    Jun 25, 2013 at 12:48 pm
    Jun 27, 2013 at 11:39 pm
  • Hackers, I'd like to take a straw poll here on how we should acknowledge reviewers. Please answer the below with your thoughts, either on-list or via private email. How should reviewers get credited ...
    Josh BerkusJosh Berkus
    Jun 25, 2013 at 5:17 pm
    Jul 12, 2013 at 7:18 pm
  • checkpoint_segments is awkward. From an admin's point of view, it controls two things: 1. it limits the amount of disk space needed for pg_xlog. (it's a soft limit, but still) 2. it limits the time ...
    Heikki LinnakangasHeikki Linnakangas
    Jun 5, 2013 at 12:16 pm
    Jul 8, 2013 at 6:38 pm
  • I've rebased the current set of pending patches I had, to fix pgxs and added 2 new patches. Bugfixes have already been presented and sent in another thread, except the last one which only fix comment ...
    Cédric VillemainCédric Villemain
    Jun 18, 2013 at 1:52 pm
    Jul 12, 2013 at 9:50 pm
  • Attached is a patch for REFRESH MATERIALIZED VIEW CONCURRENTLY for 9.4 CF1. The goal of this patch is to allow a refresh without interfering with concurrent reads, using transactional semantics. It ...
    Kevin GrittnerKevin Grittner
    Jun 14, 2013 at 4:05 pm
    Jul 16, 2013 at 6:38 pm
  • Attached is a first draft of an update to pg_filedump for 9.3. I know pg_filedump is a pgfoundry project, but that seems like it's just there to host the download; so please excuse the slightly ...
    Jeff DavisJeff Davis
    Jun 10, 2013 at 5:00 am
    Jul 21, 2013 at 6:02 am
  • This has served no purpose except to 1. take up space 2. confuse users 3. produce broken external extension modules that take contrib as an example 4. break builds of PostgreSQL when users try to fix ...
    Peter EisentrautPeter Eisentraut
    Jun 13, 2013 at 3:16 am
    Jul 11, 2013 at 3:31 am
  • Hackers, Per discussion on these tests, I ran "make check" against 9.4 head, applied all of the regression tests other than DISCARD. Time for 3 "make check" runs without new tests: 65.9s Time for 3 ...
    Josh BerkusJosh Berkus
    Jun 28, 2013 at 9:01 pm
    Jul 3, 2013 at 7:13 pm
  • I asked a while ago in this group about the possibility to implement a parallel planner in a multithread way, and the replies were that the proposed approach couldn't be implemented, because the ...
    Fred&Dani&Pandora&AquilesFred&Dani&Pandora&Aquiles
    Jun 7, 2013 at 5:10 pm
    Jun 13, 2013 at 10:16 am
  • In 9.2, the JSON parser didn't check the validity of the use of unicode escapes other than that it required 4 hex digits to follow '\u'. In 9.3, that is still the case. However, the JSON accessor ...
    Andrew DunstanAndrew Dunstan
    Jun 5, 2013 at 2:46 pm
    Jun 12, 2013 at 11:31 am
  • Hallo Everybody As far as I can see, currently you can not return anything out of a DO (anonymous code) block. Something like DO LANGUAGE plpythonu RETURNS TABLE (name text, uid int, gid int) $$ with ...
    Hannu KrosingHannu Krosing
    Jun 10, 2013 at 7:11 pm
    Jun 11, 2013 at 5:39 pm
  • Hi, Attached is a patch implementing a new aggregate function md5_agg() to compute the aggregate MD5 sum across a number of rows. This is something I've wished for a number of times. I think the ...
    Dean RasheedDean Rasheed
    Jun 13, 2013 at 9:35 am
    Jun 27, 2013 at 11:10 pm
  • Hello, I am working with the NixOS Linux Distribution [nixos], which has a fairly radical approach to package management. If you aren't familiar with it, essentially all packages are installed in ...
    Oliver CharlesOliver Charles
    Jun 4, 2013 at 3:31 pm
    Jun 12, 2013 at 3:10 pm
  • Andres FreundAndres Freund
    Jun 14, 2013 at 11:01 pm
    Jun 25, 2013 at 7:32 pm
  • Hi, This is a preliminary proposal for Minmax indexes. I'm experimenting with the code, but it's too crude to post yet, so here's a document explaining what they are and how they work, so that ...
    Alvaro HerreraAlvaro Herrera
    Jun 14, 2013 at 10:28 pm
    Jul 19, 2013 at 4:43 pm
  • Hi, I'm thinking of implementing an incremental backup tool for PostgreSQL. The use case for the tool would be taking a backup of huge database. For that size of database, pg_dump is too slow, even ...
    Tatsuo IshiiTatsuo Ishii
    Jun 19, 2013 at 10:14 am
    Jun 22, 2013 at 2:08 pm
  • I think the suggested emacs configuration snippets in src/tools/editors/emacs.samples no longer represent current best practices. I have come up with some newer things that I'd like to propose for ...
    Peter EisentrautPeter Eisentraut
    Jun 14, 2013 at 1:27 am
    Jul 21, 2013 at 1:06 am
  • Hi Maciej, I've been reviewing your patch for the ongoing commitfest. First let me say that I think it's a great idea and provides some very useful functionality. However, there are a few minor ...
    Ian linkIan link
    Jun 25, 2013 at 9:29 pm
    Jul 5, 2013 at 8:20 pm
  • Hi All. I just subscribed to RRReviewers (that should be pronounce with a nice rolling r-r-reviewers, right?) As part of my getting up to speed, I tried to build and run test on the current master ...
    Svenne KrapSvenne Krap
    Jun 18, 2013 at 4:40 pm
    Jun 20, 2013 at 2:01 am
  • Previous discussions of Hash Joins have noted that the performance decreases when the average number of tuples per bucket increases. O(N^2) effects are seen. We've argued this about many different ...
    Simon RiggsSimon Riggs
    Jun 22, 2013 at 1:15 pm
    Jul 3, 2013 at 8:09 am
  • Hello related to https://commitfest.postgresql.org/action/patch_view?id=1130 http://www.postgresql.org/message-id/CABwTF4V9rsjiBWE+87pK83Mmm7ACdrG7sZ08RQ-4qYMe8jvhbw@mail.gmail.com * motivation ...
    Pavel StehulePavel Stehule
    Jun 18, 2013 at 7:02 pm
    Jul 18, 2013 at 5:55 pm
  • Hi all Since 8.4, PostgreSQL has had extremely useful window function support - but support for "RANGE PRECEDING / FOLLOWING" windows was dropped late in 8.4's development in order to get the rest of ...
    Craig RingerCraig Ringer
    Jun 21, 2013 at 2:24 am
    Jul 3, 2013 at 12:23 am
  • Is there a particular reason why CREATE RECURSIVE VIEW is part of the help for CREATE VIEW, but CREATE MATERIALIZED VIEW doesn't show up there? I realize the technical reason (they're different man ...
    Magnus HaganderMagnus Hagander
    Jun 27, 2013 at 7:21 am
    Jul 1, 2013 at 9:27 pm
  • FK checks can be expensive, especially when loading large volumes of data into an existing table or partition. A couple of ideas for improving performance are discussed here: 1. Use Case: Bulk ...
    Simon RiggsSimon Riggs
    Jun 1, 2013 at 8:41 am
    Jun 11, 2013 at 4:09 am
  • The attached patch implements row-level security feature; that allows to enforce a pre-configured security policy on reference of tables with the row-level security policy. It enables to isolate ...
    Kohei KaiGaiKohei KaiGai
    Jun 13, 2013 at 7:44 pm
    Jul 23, 2013 at 10:48 pm
  • Helle, I've added visibility map information to pg_freespace for my utility. This looks like this, postgres=# select * from pg_freespace('t'::regclass); blkno | avail | all_visible ...
    Kyotaro HORIGUCHIKyotaro HORIGUCHI
    Jun 14, 2013 at 8:44 am
    Jul 18, 2013 at 10:34 am
  • I'm reading through plperl and plpython implementations and I don't understand the way they work. Comments for plperl say that there are two interpreters (trusted and untrusted) for each user ...
    Szymon GuzSzymon Guz
    Jun 30, 2013 at 11:49 am
    Jul 2, 2013 at 12:04 am
  • I was looking for a way in which the average psql user could learn whether a view is updatable. I was expecting something in \d, \d+, \dv, \dv+, or a NOTICE from CREATE VIEW. So far, the only way ...
    Peter EisentrautPeter Eisentraut
    Jun 4, 2013 at 3:59 pm
    Jul 11, 2013 at 9:06 am
  • I want to draw attention to this thread on -general: CAMQ5dGq4SuJPbhT2-9XLAPAsvKNUL2-bb0cPyci2Fp+<span class="m_body_email_addr" title="4b0e4a57a0206c80f1f6ab125833903c" pfsfc3g@mail.gmail.com</span ...
    Albe LaurenzAlbe Laurenz
    Jun 21, 2013 at 8:16 am
    Jun 27, 2013 at 12:41 am
  • While fiddling with FK tuning, Noah suggested batching trigger executions together to avoid execution overhead. It turns out there is no easy way to write triggers that can take advantage of the ...
    Simon RiggsSimon Riggs
    Jun 8, 2013 at 9:00 pm
    Jun 18, 2013 at 8:06 am
  • Parallel query, or any subset of that project such as parallel sort, will require a way to start background workers on demand. Thanks to Alvaro's work on 9.3, we now have the ability to configure ...
    Robert HaasRobert Haas
    Jun 14, 2013 at 9:00 pm
    Jul 16, 2013 at 5:09 pm
  • Hello long time I am thinking about simple function for creating date or timestamp values based on numeric types without necessity to create format string. some like ansi_date(year, month, day) and ...
    Pavel StehulePavel Stehule
    Jun 29, 2013 at 11:08 am
    Jul 13, 2013 at 12:03 pm
  • Hi all Currently DECIMAL is an alias for NUMERIC, Pg's built-in arbitrary precision and scale decimal type. I'd like to explore the possibility of using hardware decimal floating point support in ...
    Craig RingerCraig Ringer
    Jun 11, 2013 at 11:56 pm
    Jun 25, 2013 at 12:31 am
  • Dear hackers, Per various discussion about the potential impact of Robins non regression tests, here is a poc patch to separate big tests from others. "paralle_schedule" holds usual tests, ...
    Fabien COELHOFabien COELHO
    Jun 29, 2013 at 5:18 am
    Jul 11, 2013 at 6:56 pm
  • Hi all, I have been reading the recent discussion and was researching a bit, and I think that we should really go with the idea of randomising the input data(if it is not completely presorted), to ...
    Atri SharmaAtri Sharma
    Jun 30, 2013 at 12:30 pm
    Jul 2, 2013 at 4:02 pm
  • Hi, In streaming replication, when we shutdown the master, walsender tries to send all the outstanding WAL records including the shutdown checkpoint record to the standby, and then to exit. This ...
    Fujii MasaoFujii Masao
    Jun 11, 2013 at 10:53 pm
    Jun 25, 2013 at 5:23 pm
  • I have read Peter Eisentraut blog entry about "Moving to C++", I full agree with him about what he wrote. Is there any interest or work in progress in making the entire Postgresql code base ...
    Gaetano MendolaGaetano Mendola
    Jun 15, 2013 at 7:20 pm
    Jun 25, 2013 at 3:52 pm
  • Hello, I had a customer pulling their hair out today because they couldn't login to their system. The error was consistently: 2013-06-07 08:42:44 MST postgres 10.1.11.67 27440 FATAL: password ...
    Joshua D. DrakeJoshua D. Drake
    Jun 7, 2013 at 6:47 pm
    Jun 19, 2013 at 7:00 pm
  • Hello, Postgresql estimates the number of live tuples after the vacuum has left some buffers unscanned. This estimation does well for most cases, but makes completely different result with a strong ...
    Kyotaro HORIGUCHIKyotaro HORIGUCHI
    Jun 14, 2013 at 8:35 am
    Jul 22, 2013 at 7:21 am
  • Hackes, attached patch implementing "fast scan" technique for GIN. This is second patch of GIN improvements, see the 1st one here ...
    Alexander KorotkovAlexander Korotkov
    Jun 14, 2013 at 10:55 pm
    Jul 6, 2013 at 4:48 pm
  • Hackers, Revised version of patch for additional information storage in GIN is attached. Changes are mostly bug fixes. Resemble GIN interface changes that this patch introduce. Patch modifies GIN ...
    Alexander KorotkovAlexander Korotkov
    Jun 13, 2013 at 8:10 pm
    Jul 6, 2013 at 4:43 pm
  • I try to create database columns with umlauts, using the UTF8 client encoding. However, the server seems to mess up the column names. In particular, it seems to perform a lowercase operation on each ...
    Martin SchäferMartin Schäfer
    Jun 3, 2013 at 2:40 pm
    Jun 10, 2013 at 9:38 am
  • Hi All, I have been researching bloom filters and discussed it on IRC with RhodiumToad and David Fetter, and they pointed me to the various places that could potentially have bloom filters, apart ...
    Atri SharmaAtri Sharma
    Jun 26, 2013 at 6:46 am
    Jul 23, 2013 at 3:33 pm
  • I've been studying the bug reported at http://www.postgresql.org/message-id/20130617235236.GA1636@jeremyevans.local that the planner can do the wrong thing with queries like SELECT * FROM i LEFT JOIN ...
    Tom LaneTom Lane
    Jun 25, 2013 at 8:00 pm
    Jul 19, 2013 at 2:57 pm
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165 users for June 2013

Andres Freund: 170 posts Tom Lane: 153 posts Robert Haas: 142 posts Josh Berkus: 111 posts Simon Riggs: 88 posts Peter Eisentraut: 76 posts Heikki Linnakangas: 70 posts Kevin Grittner: 67 posts Alvaro Herrera: 66 posts Stephen Frost: 59 posts Andrew Dunstan: 56 posts Bruce Momjian: 49 posts Joshua D. Drake: 49 posts Amit Kapila: 48 posts Noah Misch: 48 posts Pavel Stehule: 48 posts Jeff Janes: 47 posts Fabien COELHO: 45 posts Craig Ringer: 44 posts Dean Rasheed: 42 posts
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