FAQ

PostgreSQL > pgsql-hackers > December 2000

Search Discussions

226 discussions - 1,222 posts

  • Rasmus Lerdorf, the big PHP developer, told me that the existance of GNU readline hooks in our source tree could cause RMS/GNU to force us to a GNU license. Obviously, we could remove readline hooks ...
    Bruce MomjianBruce Momjian
    Dec 23, 2000 at 2:56 pm
    Jan 3, 2001 at 2:23 am
  • Hello all, I am new to postgreSQL. When I read the documents, I find out the Postmaster daemon actual spawns a new backend server process to serve a new client request. Why not use threads instead? ...
    Junfeng ZhangJunfeng Zhang
    Dec 4, 2000 at 4:53 am
    Jan 2, 2001 at 5:24 pm
  • OK, I am through mail email backlog from my Japan visit. I will work on a full 7.1 changes list this week. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your ...
    Bruce MomjianBruce Momjian
    Dec 11, 2000 at 1:53 am
    Jan 11, 2001 at 2:25 pm
  • TOAST breaks data into a few 2K (or so) tuples to be inserted separately. But first after checkpoint btree split will require logging of 2x8K record -:( Other opinions? Also, we shouldn't forget ...
    Mikheev, VadimMikheev, Vadim
    Dec 7, 2000 at 8:36 pm
    Dec 12, 2000 at 8:31 pm
  • I know you guys are pretty busy with the upcoming release but I was hoping for more interest in this work. With this (which needs forward porting) we're able to cut vacuum time down from ~10minutes ...
    Alfred PerlsteinAlfred Perlstein
    Dec 11, 2000 at 8:31 pm
    Jan 25, 2001 at 2:14 pm
  • I have been asked by the major PHP developer Rasmus Lerdorf to see if the PostgreSQL/PHP interface needs any improvements. Is the current PostgreSQL interface module in PHP adequate? Does it support ...
    Bruce MomjianBruce Momjian
    Dec 27, 2000 at 5:56 am
    Jan 23, 2001 at 6:11 pm
  • Well, no one seemed very unhappy at the idea of changing the file format for binary COPY, so here is a proposal. The objectives of this change are: 1. Get rid of the tuple count at the front of the ...
    Tom LaneTom Lane
    Dec 6, 2000 at 11:36 pm
    Dec 13, 2000 at 6:09 pm
  • I noticed the other day that one of my pg databases was slow, so I ran vacuum on it, which brought a question to mind: why the need? I looked at my oracle server and we aren't doing anything of the ...
    BpalmerBpalmer
    Dec 13, 2000 at 10:50 pm
    Dec 14, 2000 at 5:39 pm
  • I have been digging into the observed failure FATAL: Checkpoint lock is busy while data base is shutting down on some Alpha machines. It apparently doesn't happen on all Alphas, but it's quite ...
    Tom LaneTom Lane
    Dec 28, 2000 at 8:54 pm
    Jan 9, 2001 at 4:17 am
  • Hi, I saw the thread from a few days ago about Linux/Alpha and 7.1. I believe I'm seeing the same problems with DEC/Alpha (Tru64Unix 4.0D). I noticed the following in the postmaster.log, which ...
    Brent VernerBrent Verner
    Dec 23, 2000 at 1:27 am
    Dec 28, 2000 at 8:24 am
  • I've been looking into Brian Hirt's complaint that 7.0.3 and 7.1 are lots slower than 7.0.2 in planning big joins. The direct cause is that since we now deduce implied equality clauses, the system ...
    Tom LaneTom Lane
    Dec 13, 2000 at 11:14 pm
    Feb 28, 2001 at 1:00 pm
  • I have a working version of a text search engine. I want to make it work for Postgres (I will be releasing it GPL). It can literally find the occurrence of a string of words within 5 million records ...
    Mark L. WoodwardMark L. Woodward
    Dec 8, 2000 at 4:07 pm
    Dec 10, 2000 at 12:30 pm
  • As far as I know (and have tested in excess) Informix IDS does survive any power loss without leaving the db in a corrupted state. The basic technology is, that it only relys on writes to one "file" ...
    Andreas ZeugswetterAndreas Zeugswetter
    Dec 5, 2000 at 9:12 am
    Dec 8, 2000 at 7:36 pm
  • This problem with foreign keys has been reported to me, and I have confirmed the bug exists in current sources. The DELETE should succeed: ...
    Bruce MomjianBruce Momjian
    Dec 12, 2000 at 5:13 pm
    Jan 27, 2001 at 10:21 pm
  • Hi. I've still got something I can't seem to get. In my test cases with simple tables the first uint16 of tuple data after the header contained the length of the tuple. In this case I can't seem to ...
    Michael RichardsMichael Richards
    Dec 16, 2000 at 7:32 pm
    Dec 19, 2000 at 6:40 am
  • It seems that R-trees become inefficient when the number of dimensions increase. Has anyone thoght of a transparent way to use Peano codes (hhcode in Oracle lingo), and use B-tree indexes instead? ...
    Edmar WiggersEdmar Wiggers
    Dec 12, 2000 at 1:25 pm
    Dec 15, 2000 at 3:47 pm
  • Okay, since I haven't gotten word back on where to find the docs for v7.1, it still contains those for v7.0, but I just put up beta1 tarballs in the /pub/dev directory ... can someone take a look at ...
    The Hermit HackerThe Hermit Hacker
    Dec 7, 2000 at 7:48 pm
    Dec 11, 2000 at 5:02 pm
  • I know it's been a while since we last discussed a possible rewrite of the C++ API but I now have some time to devote to it. The following are my ideas for implementing the C++ API: I need ...
    Randy JonaszRandy Jonasz
    Dec 6, 2000 at 11:36 pm
    Dec 14, 2000 at 1:34 am
  • I thought the hackers team would be interested in knowing that SourceForge, as of Friday evening, is running on Postgres. Some 95,000 users and 12,500 Open Source projects are depending on your ...
    Tim PerdueTim Perdue
    Dec 12, 2000 at 2:24 am
    Feb 10, 2001 at 3:08 pm
  • I've just noticed that COPY BINARY is pretty thoroughly broken by TOAST, because what it does is to dump out verbatim the bytes making up each tuple of the relation. In the case of a moved-off value, ...
    Tom LaneTom Lane
    Dec 1, 2000 at 10:35 pm
    Jan 23, 2001 at 4:20 am
  • What is the status of the genetic algorithm query optimizer? Is this supposed to work well on many-table joins, or has it fallen out of favor or in disrepair? [I'm needing to optimize some large, ...
    Ed LoehrEd Loehr
    Dec 22, 2000 at 10:39 pm
    Dec 30, 2000 at 2:19 am
  • (plz cc me on your replies, i'm not on pgsql-hackers for some reason.) http://www.vix.com/~vixie/results-psql.png shows a gnuplot of the wall time of 70K executions of "pgcat" (shown below) using a ...
    Paul A VixiePaul A Vixie
    Dec 19, 2000 at 6:38 am
    Dec 21, 2000 at 5:10 pm
  • tas() is not supposed to contain a loop. It can succeed or fail, but it should not wait. The code now in s_lock.h does seem rather gratuitously obscure about the instructions it uses to load ...
    Tom LaneTom Lane
    Dec 28, 2000 at 2:37 am
    Dec 29, 2000 at 4:58 am
  • I've run tests (with 50 .. 250 simult users) for some PG project of my company. 7.1 was 3 times faster than 7.0.3 (fsync) but near 3 times slower than 7.0.3 (nofsync). It was not the best day in my ...
    Mikheev, VadimMikheev, Vadim
    Dec 8, 2000 at 11:17 pm
    Dec 14, 2000 at 12:28 am
  • We recently had a very satisfactory contract completed by Vadim. Basically Vadim has been able to reduce the amount of time taken by a vacuum from 10-15 minutes down to under 10 seconds. We've been ...
    Alfred PerlsteinAlfred Perlstein
    Dec 7, 2000 at 11:06 pm
    Jan 24, 2001 at 4:55 pm
  • Hm. This is one of the areas that I had put down on my personal TODO list as needing a close look before release. So, let's get to it. My first scan of SQL92 looks like our current behavior is right. ...
    Tom LaneTom Lane
    Dec 16, 2000 at 6:39 am
    Dec 20, 2000 at 8:12 pm
  • Hm. It seems fairly unlikely that select() would return error ECHILD, which is what this message *appears* to imply. The code is if (select(nSockets, &rmask, &wmask, (fd_set *) NULL, (struct timeval ...
    Tom LaneTom Lane
    Dec 18, 2000 at 3:47 am
    Dec 19, 2000 at 1:28 pm
  • It seems very dangerous to me. When VACUUM of a master table was finished, the transaction is in already committed state in many cases. Regards. Hiroshi Inoue
    Hiroshi InoueHiroshi Inoue
    Dec 9, 2000 at 1:23 pm
    Dec 12, 2000 at 12:21 am
  • I have had the time to test today's (12/19) snapshot on my Linux/Alpha and the good news is that only two regression tests are failing. The bad news is that these regression tests do not fail on ...
    Ryan KirkpatrickRyan Kirkpatrick
    Dec 20, 2000 at 4:08 am
    Jan 23, 2001 at 2:51 pm
  • I'm trying to delete all the records or only one record or insert one record in a table but i'm having this message: ERROR: Unable to identify an operator '=' for types 'int4' and 'text' You will ...
    Luis SousaLuis Sousa
    Dec 14, 2000 at 3:33 pm
    Dec 20, 2000 at 3:43 pm
  • On FreeBSD 4.1.1 and above there's a sysctl tunable called kern.ipc.shm_use_phys, when set to 1 it's supposed to make the kernel's handling of shared memory much more effecient at the expense or ...
    Alfred PerlsteinAlfred Perlstein
    Dec 5, 2000 at 3:14 pm
    Dec 5, 2000 at 10:52 pm
  • I think the newC function idea is pretty good, however, what would be great is just one more step of protocol, perhaps an API verson 2 or 3: One thing than makes writing a non-trivial function a bit ...
    Mark L. WoodwardMark L. Woodward
    Dec 12, 2000 at 4:27 pm
    Dec 13, 2000 at 10:51 pm
  • Ok, just a small issue here: I'm running: select attname,attlen,attalign from pg_attribute where attnum 0 and attrelid = (select oid from pg_class where relname = 'users') order by attnum; This is to ...
    Michael RichardsMichael Richards
    Dec 17, 2000 at 5:40 pm
    Mar 2, 2001 at 4:39 pm
  • This line works: /usr/local/pgsql/bin/postmaster -N 32 -B 928 -i -S -D/home/postgres/pgdev -o "-F -fs -S 4096" Where as this line: /usr/local/pgsql/bin/postmaster -N 32 -B 1024 -i -S ...
    Mark L. WoodwardMark L. Woodward
    Dec 25, 2000 at 2:01 am
    Jan 1, 2001 at 3:35 am
  • Try to compare 7.0.3 & 7.1beta in multi-user environment. Vadim
    Mikheev, VadimMikheev, Vadim
    Dec 7, 2000 at 8:27 pm
    Dec 8, 2000 at 9:06 pm
  • Hi all, In InitPostgres()(postinit.c) I see the following code. RelationCacheInitialize(); /* pre-allocated reldescs created here */ InitializeTransactionSystem(); /* pg_log,etc init/crash recovery ...
    Hiroshi InoueHiroshi Inoue
    Dec 19, 2000 at 3:40 pm
    Jan 6, 2001 at 12:57 am
  • Yes, it would be nice for cursors too - they should be able to cross transaction boundaries... Use BackendID instead of XID in XIDTAG? Add internal (ie per backend) hash of locks that should not be ...
    Mikheev, VadimMikheev, Vadim
    Dec 15, 2000 at 8:28 pm
    Dec 22, 2000 at 1:11 am
  • Morning ... Just to let ppl know what I'm using as milestones for beta releases: beta2 - vadim finishes WAL stuff he's currently working on beta3 - vadim incorporates LAZY extension to VACUUM beta4 - ...
    The Hermit HackerThe Hermit Hacker
    Dec 20, 2000 at 9:05 pm
    Dec 21, 2000 at 6:15 am
  • I am doing some testing and development on Postgres. Is there, by chance, a good source of data which can be used as a test database? I have been using a music database, but it is proprietary, and ...
    Mark L. WoodwardMark L. Woodward
    Dec 19, 2000 at 6:17 pm
    Dec 21, 2000 at 5:48 am
  • I suspect that you are really looking at the problem from the wrong end. CRC checking should not need to be done by the database user, with a fancy type. The postgres server itself should guarantee ...
    Christopher Kings-LynneChristopher Kings-Lynne
    Dec 8, 2000 at 8:16 am
    Dec 13, 2000 at 5:17 am
  • Hi, I see now the following message and couldn't start postmaster. FATAL 2: btree_insert_redo: uninitialized page Is it a bug ? Anyway,how do I reset my WAL environment ? Regards. Hiroshi Inoue
    Hiroshi InoueHiroshi Inoue
    Dec 6, 2000 at 1:16 am
    Dec 8, 2000 at 12:06 am
  • Oh, I didn't consider log consistency that time. Anyway we need in CRC for entire log record not for its 512-bytes parts. Well, I didn't care about not atomic 8K-block writes in current WAL ...
    Mikheev, VadimMikheev, Vadim
    Dec 7, 2000 at 4:04 am
    Dec 7, 2000 at 8:06 pm
  • Some SQL92 functionality is missing from the BIT and VARBIT types. It should be possible to enter hexadecimal values as: B'[<bit ...]'[{<separator ...'[<bit...]'}...] X'[<hexdigit ...]'[{<separator ...
    Oliver ElphickOliver Elphick
    Dec 21, 2000 at 9:34 pm
    Dec 27, 2000 at 2:12 pm
  • Hi, I am using the following command to check out the 7.1 branch of PostgreSQL. cvs -d :pserver:anoncvs@postgresql.org:/home/projects/pgsql/cvsroot co -r REL7_1 pgsql This is the error I am getting. ...
    Yusuf GoolamabbasYusuf Goolamabbas
    Dec 22, 2000 at 11:30 pm
    Dec 23, 2000 at 12:05 am
  • I've been experimenting with the SSL connection support. Unfortunately I can't get the postmaster to start because the instructions in the documentation for setting up a certificate don't work. They ...
    Oliver ElphickOliver Elphick
    Dec 20, 2000 at 4:04 pm
    Dec 21, 2000 at 7:08 pm
  • peter=# select 1 as current; old ----- 1 This is now the inverse of what it used to do, but it's still not what it *should* do. I see someone already tried to fix that (keywords.c 1.76 - 1.77, TODO ...
    Peter EisentrautPeter Eisentraut
    Dec 15, 2000 at 10:47 pm
    Dec 15, 2000 at 11:36 pm
  • Hi, I have been using Postgres-7.0.2 on Solaris 8 for the past few months, and was about to upgrade to 7.1-test, and after following carefully the docs, I get this: postgres@ultra31:~ ...
    Martin A. MarquesMartin A. Marques
    Dec 12, 2000 at 3:59 pm
    Dec 14, 2000 at 1:03 pm
  • If we move tuples in already committed state, a page with new tuple position goes to disk and backend crashes before page with old tuple position updated then we'll have two version of tuple after ...
    Mikheev, VadimMikheev, Vadim
    Dec 11, 2000 at 5:33 pm
    Dec 12, 2000 at 4:13 am
  • It was just pointed out on pggeneral that hash indexes on macaddr columns don't work. Looking into it, I find that someone (me :-() made a booboo: pg_amproc claims that hashvarlena is the appropriate ...
    Tom LaneTom Lane
    Dec 8, 2000 at 9:37 pm
    Dec 8, 2000 at 11:52 pm
  • I have an abstract solution for a problem in postgresql's handling of what should be constant data. We had problem with a query taking way too long, basically we had this: select ...
    Alfred PerlsteinAlfred Perlstein
    Dec 7, 2000 at 11:06 pm
    Dec 8, 2000 at 1:58 am
Dec 2000
12345
Group Navigation
period‹ prev | Dec 2000 | next ›
Group Overview
grouppgsql-hackers @
categoriespostgresql
discussions226
posts1,222
users155
websitepostgresql.org...
irc#postgresql

155 users for December 2000

Tom Lane: 238 posts Bruce Momjian: 63 posts Vadim Mikheev: 60 posts The Hermit Hacker: 48 posts Thomas Lockhart: 44 posts Mark L. Woodward: 43 posts Alfred Perlstein: 42 posts Nathan Myers: 40 posts Peter Eisentraut: 38 posts Andreas Zeugswetter: 35 posts Oleg Bartunov: 31 posts Bruce Guenter: 26 posts Don Baccus: 26 posts Hannu Krosing: 25 posts Brent Verner: 21 posts Hiroshi Inoue: 21 posts Tatsuo Ishii: 18 posts Horst Herb: 16 posts Oliver Elphick: 14 posts Martin A. Marques: 13 posts
show more
Archives