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158 discussions - 2,109 posts

  • Here is a series of three patches related to unlogged tables. 1. The first one (relpersistence-v1) is a mostly mechanical patch that replaces pg_class.relistemp (a Boolean) with ...
    Robert HaasRobert Haas
    Nov 14, 2010 at 12:16 am
    Dec 20, 2010 at 5:50 pm
  • Final patch in this series for today spreads out the individual checkpoint fsync calls over time, and was written by myself and Simon Riggs. Patch is based against a system that's already had the two ...
    Greg SmithGreg Smith
    Nov 14, 2010 at 11:48 pm
    Feb 11, 2011 at 4:01 am
  • Per previous threats, I spent some time tonight running oprofile (using the directions Tom Lane was foolish enough to provide me back in May). I took testlibpq.c and hacked it up to just connect to ...
    Robert HaasRobert Haas
    Nov 24, 2010 at 5:07 am
    Dec 7, 2010 at 6:41 am
  • Hi, hackers, Attached is a patch that adds file_fdw, FDW which reads records from files on the server side, as a contrib module. This patch is based on "SQL/MED core functionality" patch. [SQL/MED - ...
    Shigeru HANADAShigeru HANADA
    Nov 25, 2010 at 8:12 am
    Feb 21, 2011 at 4:37 pm
  • This is the second patch for parallel pg_dump, now the actual part that parallelizes the whole thing. More precisely, it adds parallel backup/restore to pg_dump/pg_restore for the directory archive ...
    Joachim WielandJoachim Wieland
    Nov 15, 2010 at 12:01 am
    Dec 26, 2010 at 3:13 am
  • Last week, I posted a couple of possible designs for making the visibility map crash-safe, which did not elicit much comment. Since this is an important prerequisite to index-only scans, I'm trying ...
    Robert HaasRobert Haas
    Nov 30, 2010 at 4:57 am
    Jan 8, 2011 at 2:59 am
  • Hi all, The discussion around wCTE during the last week or so has brought to my attention that we don't actually have a consensus on how exactly wCTEs should behave. The question seems to be whether ...
    Marko TiikkajaMarko Tiikkaja
    Nov 11, 2010 at 2:15 am
    Feb 25, 2011 at 5:19 pm
  • Hi hackers, Attached is a patch that adds core functionality of SQL/MED. This patch provides: * new option HANDLER for FOREIGN DATA WRAPPER * CREATE/ALTER DDLs are supported * psql \dew command shows ...
    Shigeru HANADAShigeru HANADA
    Nov 25, 2010 at 7:34 am
    Jan 5, 2011 at 11:37 am
  • I've just looked at pg_execute_from_file[1]. The idea here is to execute all the SQL commands in a given file. My comments: * It applies well enough, and builds fine * It seems to work, and I've not ...
    Joshua TolleyJoshua Tolley
    Nov 25, 2010 at 6:35 am
    Dec 8, 2010 at 2:28 pm
  • Hello this patch remove a multiple detoasting of varlena values in plpgsql. It is usable mainly for iteration over longer array directly loaded from relation. It's doesn't have a impact on semantic ...
    Pavel StehulePavel Stehule
    Nov 22, 2010 at 12:47 pm
    Mar 11, 2011 at 6:10 am
  • A customer of ours is quite bothered about finding zero pages in an index after a system crash. The task now is to improve the diagnosability of such an issue and be able to definitively point to the ...
    Gurjeet SinghGurjeet Singh
    Nov 6, 2010 at 10:43 am
    Dec 7, 2010 at 5:11 am
  • Hackers, I've been trying to diagnose in a production database why certain tables never get autovacuumed despite having a substantial % of updates. The obvious reason is locks blocking autovacuum ...
    Josh BerkusJosh Berkus
    Nov 17, 2010 at 9:46 pm
    Feb 8, 2011 at 3:05 am
  • I compiled the source with mingw gcc 4.5.0, that has been released recently. The compile was succeeded and worked well at least for simple queries, but there were many warnings during the compile. ...
    Itagaki TakahiroItagaki Takahiro
    Nov 1, 2010 at 10:24 am
    Dec 16, 2010 at 5:15 pm
  • Hi, frequently i have accidents with DELETE/UPDATE commands. In fact, sometimes in the last 8 or 9 years (ok, a lot of times) I forget the entire WHERE clause or have a “not so perfectly“ WHERE ...
    Daniel LoureiroDaniel Loureiro
    Nov 30, 2010 at 2:08 am
    Dec 3, 2010 at 12:26 am
  • Following the discussions here (http://archives.postgresql.org/message-id/12375.1289429390@sss.pgh.pa.us), here's a draft version of a rewrite of the GiST insertion algorithm and WAL-logging. The ...
    Heikki LinnakangasHeikki Linnakangas
    Nov 16, 2010 at 4:33 pm
    Jan 9, 2011 at 7:38 pm
  • This is the first of two patches for parallel pg_dump. In particular, this patch adds a new pg_dump archive type which can save pg_dump data to a directory, with each table/blob being a file so that ...
    Joachim WielandJoachim Wieland
    Nov 15, 2010 at 12:18 am
    Dec 16, 2010 at 10:55 pm
  • Here is the next patch in this epic series. [0] I have addressed most of the issues pointed out in previous reviews and removed all major outstanding problems that were marked in the code. So it ...
    Peter EisentrautPeter Eisentraut
    Nov 15, 2010 at 12:06 am
    Dec 16, 2010 at 11:11 am
  • Currently, we overload "indent" meaning both "unix socket authentication" and "ident over tcp", depending on what type of connection it is. This is quite unfortunate - one of them being one of the ...
    Magnus HaganderMagnus Hagander
    Nov 17, 2010 at 3:35 pm
    Mar 19, 2011 at 5:48 pm
  • For the Serializable Snapshot Isolation (SSI) patch I needed a test suite which would handle concurrent sessions which interleaved statements in predictable ways. I was told pgTAP wasn't a good ...
    Kevin GrittnerKevin Grittner
    Nov 10, 2010 at 1:31 pm
    Nov 12, 2010 at 6:58 pm
  • We have the rm_safe_restartpoint mechanism to ensure that we don't use a checkpoint that splits a multi-level B-tree insertion as a restart point. But to my surprise, we don't have anything to ...
    Heikki LinnakangasHeikki Linnakangas
    Nov 2, 2010 at 10:56 am
    Aug 23, 2012 at 2:14 pm
  • Hi SQL/MED developers, Our company has just finished development of a database extension for Informix that provides tabular access to various types of structured files (NetCDF and HDF5, with more ...
    Eric DaviesEric Davies
    Nov 3, 2010 at 8:39 pm
    Nov 24, 2010 at 9:58 am
  • Attached patch adds some logging for each individual fsync call made during a checkpoint, along with a summary at the end. You need to have the following to see all of the detail: log_checkpoints=on ...
    Greg SmithGreg Smith
    Nov 14, 2010 at 9:45 pm
    Dec 16, 2010 at 1:56 pm
  • Hi list, PostgreSQL's default settings change when built with Linux kernel headers 2.6.33 or newer. As discussed on the pgsql-performance list, this causes a significant performance regression: ...
    Marti RaudseppMarti Raudsepp
    Nov 5, 2010 at 5:24 pm
    Jan 15, 2011 at 4:59 pm
  • Postgres supports ARRAY data types well, but there are some more array functions in the SQL standard. Also, the standard has MULTISET data type, that is an unordered array. It looks easy to support ...
    Itagaki TakahiroItagaki Takahiro
    Nov 11, 2010 at 3:03 pm
    Nov 18, 2010 at 8:52 am
  • I try to take problem of iteration over ROW or RECORD variable from a different perspective. I would to design a solution where isn't necessary a conversion from binary value to text (this is a ...
    Pavel StehulePavel Stehule
    Nov 8, 2010 at 6:25 pm
    Nov 9, 2010 at 8:02 pm
  • There are also at least three non-Windows buildfarm members failing like so: gmake -C src all gmake[1]: Entering directory `/home/pgbuild/pgbuildfarm/HEAD/pgsql.6736/src' gmake[1]: *** virtual memory ...
    Tom LaneTom Lane
    Nov 13, 2010 at 4:25 am
    Nov 16, 2010 at 10:28 pm
  • Hi list, Often enough when developing PostgreSQL views and functions, I have pasted the CREATE OR REPLACE commands into the wrong window/shell and ran them there without realizing that I'm creating a ...
    Marti RaudseppMarti Raudsepp
    Nov 28, 2010 at 3:15 pm
    Jan 28, 2011 at 8:49 pm
  • The attached patch is a contrib module to inject a few seconds delay on authentication failed. It is also a proof of the concept using the new ClientAuthentication_hook. This module provides a ...
    KaiGai KoheiKaiGai Kohei
    Nov 4, 2010 at 12:49 pm
    Nov 29, 2010 at 1:47 am
  • The goal of this work is to address all of the shortcomings of previous POSIX shared memory patches as pointed out mostly by Tom Lane. Branch: ...
    Nov 14, 2010 at 12:49 am
    Apr 14, 2011 at 6:23 pm
  • Hackers, Seg contrib module contains the same bug in picksplit function as cube contrib module. Also, Guttman's split algorithm is not needed in unidimensional case, because sorting based algorithm ...
    Alexander KorotkovAlexander Korotkov
    Nov 3, 2010 at 9:24 pm
    Dec 15, 2010 at 11:15 pm
  • I have a hot_standby system and use it to bear the load of various reporting queries that take 15-60 minutes each. In an effort to avoid long pauses in recovery, I set a vacuum_defer_cleanup_age ...
    Noah MischNoah Misch
    Nov 29, 2010 at 6:17 am
    Jun 16, 2011 at 4:14 pm
  • Hi all, I'd like to revive Fernando Ike's patch implementing the "\dL" command for psql to list available languages, last version here: ...
    Josh KupershmidtJosh Kupershmidt
    Nov 22, 2010 at 1:19 am
    Jan 20, 2011 at 5:04 am
  • Hello List, Is there any reason why Postgres should not support an "ALTER TABLE tablename [IF EXISTS]" feature? (And similar for other ALTER OBJECTTYPE) For example, a hypothetical statement that ...
    Daniel FarinaDaniel Farina
    Nov 5, 2010 at 7:31 am
    Nov 30, 2010 at 3:04 am
  • Hackers, I just thought of a good feature to put on the [E] list for TODO, if people agree: a switch to pg_dump called "--from-list" which would take a filename and dump the list of objects in that ...
    Josh BerkusJosh Berkus
    Nov 24, 2010 at 2:34 am
    Nov 26, 2010 at 6:59 pm
  • Hi, http://archives.postgresql.org/pgsql-hackers/2010-11/msg01303.php When I did unusual operations (e.g., suspend bgwriter by gdb, pgbench -i and issue txid_current many times) on the master in ...
    Fujii MasaoFujii Masao
    Nov 24, 2010 at 4:27 am
    Nov 29, 2010 at 1:14 am
  • I've spent a few hours pouring over the source code with coarse-toothed comb, trying to figure out just exactly what might break if we changed MyDatabaseId after backend startup time, or in other ...
    Robert HaasRobert Haas
    Nov 15, 2010 at 4:39 am
    Nov 27, 2010 at 4:56 pm
  • Hi, I work on implementing binary protocol, during test "select ?::int" has been executed few times to compile it to server prepared statement, but after this backend returned field format = text, ...
    Radosław SmoguraRadosław Smogura
    Nov 24, 2010 at 7:07 am
    Nov 26, 2010 at 9:01 am
  • While designing writeable CTEs, I found it needs a new infrastructure that helps to share the result data among separated PlannedStmt. Up to now, in a portal we only have multiple plans that share ...
    Hitoshi HaradaHitoshi Harada
    Nov 7, 2010 at 1:02 pm
    Nov 8, 2010 at 10:38 pm
  • Folks, For the past couple of years, I've been hearing from the PostGIS people among others that our type system just isn't flexible enough for their needs. It's really starting to show its age, or ...
    David FetterDavid Fetter
    Nov 12, 2010 at 4:43 pm
    Nov 15, 2010 at 5:27 am
  • Hey All, I just noticed that an editor at the w3c seems to have hit a wall with browser implementers, as they are all using Sqlite as their backend database, and so there is no second, independent ...
    Charles PritchardCharles Pritchard
    Nov 7, 2010 at 2:26 am
    Jan 16, 2011 at 12:51 am
  • Hi, So I've been working on improving locks for foreign key checks, as discussed in a thread started by Joel Jacobson a while ago. I've posted about this: ...
    Alvaro HerreraAlvaro Herrera
    Nov 25, 2010 at 10:01 pm
    Dec 3, 2010 at 4:31 pm
  • Hello, Here is the proposal to add synonyms to PostgreSQL. Initial goal is to add synonyms for relations (tables, views, sequences) and an infrastructure to allow synonyms for other database objects ...
    Alexey KlyukinAlexey Klyukin
    Nov 30, 2010 at 4:08 pm
    Dec 3, 2010 at 12:27 pm
  • I have worked on some improvements on how we handle recursive make in our makefiles. Most places uses for loops, which has some disadvantages: parallel make doesn't work across directories, make -k ...
    Peter EisentrautPeter Eisentraut
    Nov 2, 2010 at 4:43 am
    Nov 11, 2010 at 9:12 pm
  • Hi, I am seeing the following here on 9.0.1 on Linux x86-64: LOG: redo starts at 1F8/FC00E978 FATAL: too many KnownAssignedXids CONTEXT: xlog redo insert: rel 1663/16384/18373; tid 3829898/23 and ...
    Joachim WielandJoachim Wieland
    Nov 19, 2010 at 9:46 pm
    Dec 15, 2010 at 7:54 pm
  • Fellow Hackers, I'm writing a function to turn an EXPLAIN plan into a table with columns. As such, I need to have a complete list of the various bits of each plan node and their types for the table. ...
    David E. WheelerDavid E. Wheeler
    Nov 5, 2010 at 8:27 pm
    Nov 9, 2010 at 8:19 am
  • We've gotten a few inquiries about whether Postgres can use "huge pages" under Linux. In principle that should be more efficient for large shmem regions, since fewer TLB entries are needed to support ...
    Tom LaneTom Lane
    Nov 27, 2010 at 7:27 pm
    Nov 29, 2010 at 3:53 pm
  • Patch attached. Best, David
    David E. WheelerDavid E. Wheeler
    Nov 22, 2010 at 11:37 pm
    Nov 28, 2010 at 1:09 am
  • The attached patch provides plugin modules a hook just after object creation time. In typical use cases, it enables to assign default security labels on object creation by the external security ...
    KaiGai KoheiKaiGai Kohei
    Nov 9, 2010 at 10:52 am
    Nov 25, 2010 at 4:52 pm
  • The attached patch allows the security label provider to switch security label of the client during execution of certain functions. I named it as "label switcher function"; also called as "trusted- ...
    KaiGai KoheiKaiGai Kohei
    Nov 13, 2010 at 3:37 am
    Dec 14, 2010 at 12:23 am
  • Hi, When we lock on a Xid or VirtualXid, there's no way to obtain clear information on the reason for locking. Consider the following example: CREATE TABLE foo (a int); Session 1: BEGIN; SELECT 1; -- ...
    Alvaro HerreraAlvaro Herrera
    Nov 22, 2010 at 10:56 pm
    Nov 25, 2010 at 7:09 pm
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144 users for November 2010

Tom Lane: 384 posts Robert Haas: 333 posts Alvaro Herrera: 78 posts Heikki Linnakangas: 78 posts Bruce Momjian: 76 posts Andrew Dunstan: 74 posts Pavel Stehule: 69 posts Dimitri Fontaine: 62 posts Peter Eisentraut: 54 posts Itagaki Takahiro: 50 posts Andres Freund: 49 posts David Fetter: 41 posts Josh Berkus: 41 posts Kevin Grittner: 40 posts David E. Wheeler: 39 posts Magnus Hagander: 36 posts Greg Stark: 30 posts Greg Smith: 29 posts Fujii Masao: 22 posts Marko Tiikkaja: 21 posts
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