threads listlengths 1 275 |
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[
{
"msg_contents": "\nI have a table with a 3 column key. I noticed that when I update a non-key field\nin a record of the table that the update was taking longer than I thought it \nshould. After much experimenting I discovered that if I changed the data\ntypes of two of the key columns to FLOAT8 that I got v... |
[
{
"msg_contents": "\nOrignally there were but in the process of trying to figure\nout what is going on I stripped everything out of the database\nexcept the table being queried.\n\n> \n> \"Medora Schauer\" <mschauer@fairfield.com> writes:\n> > I have a table with a 3 column key. I noticed that when I \n> updat... |
[
{
"msg_contents": "This is stepping back quite a while; let me point people to the thread\nof 2003-02 where Mariusz Czu\\x{0142}ada <manieq@idea.net.pl> was\nlooking for a way of optimizing a VIEW that was a UNION.\n\n<http://archives.postgresql.org/pgsql-performance/2003-02/msg00095.php>\n\nThe subject has com... |
[
{
"msg_contents": "If a table which will be heavily used has numerous fields, yet only a\nhandfull of them will be used heavily, would it make sense performance wise to split it?\n\nExample\nTable 1\nField 1\n....\nField 100\n\nTable 2\nReferences Field 1 of table1\n.....\n\nTable n\nReferences Field 1 of table... |
[
{
"msg_contents": "OSDL has ported OSDL Database Test Suite 3(OSDL-DBT3) to PostgreSQL. \nIt drives the database with an ad-hoc decision support workload. It\nhelps database developers and users to identify database performance\nissues.\n\nOSDL-DBT3 is derived from TPC-H benchmark. TPC-H is an ad-hoc decisio... |
[
{
"msg_contents": "Hi all!\nReally I don't know what happened with this query. I'm running PG 7.3.1\non solaris, vaccumed (full) every nigth.\nThe cardinality of each table was:\n \ncont_contenido: 97 rows\njuegos_config: 40 rows\ncont_publicacion: 446 rows\nnot huge tables...\n \nhowever, this query took a lot... |
[
{
"msg_contents": "\nI'd point at the following as being a sterling candidate for being a\ncause of this being slow...\n\n AND cont_publicacion.fecha_publicacion = (SELECT max(cp1.fecha_publicacion) \n FROM cont_publicacion cp1 \n WHERE cp1.id_instalacion = cont_publicacion.id... |
[
{
"msg_contents": "\n-- \n+-----------------------------------------------------------------+\n| Ron Johnson, Jr. Home: ron.l.johnson@cox.net |\n| Jefferson, LA USA |\n| |\n| \"I'm no... |
[
{
"msg_contents": "\nSorry Chris... a little slower...\n\nesdc=> EXPLAIN ANALYZE \nSELECT\n cont_contenido.id_contenido\n ,cont_contenido.pertenece_premium\n ,cont_contenido.Titulo_esp as v_sufix \n ,cont_contenido.url_contenido\n ,cont_contenido.tipo_acceso\n ,cont_contenido.id_sbc\n ,cont_contenido.cant_vist... |
[
{
"msg_contents": "\nHi Josh... a little worse time:\n\nEXPLAIN ANALYZE \nSELECT\n cont_contenido.id_contenido\n ,cont_contenido.pertenece_premium\n ,cont_contenido.Titulo_esp as v_sufix \n ,cont_contenido.url_contenido\n ,cont_contenido.tipo_acceso\n ,cont_contenido.id_sbc\n ,cont_contenido.cant_vistos\n ,cont... |
[
{
"msg_contents": "\nI create the index, but doesn't help too much:\n\n QUERY PLAN \n----------------------------------------------------------------------... |
[
{
"msg_contents": "Hi Volker!!! I think you're right. Look at times:\n QUERY PLAN \n----------------------------------------------------------------------... |
[
{
"msg_contents": "Err... you're right... one of us say the same thing when I show the\nVolker mail...\n\n-----Mensaje original-----\nDe: Manfred Koizar [mailto:mkoi-pg@aon.at] \nEnviado el: lunes, 04 de agosto de 2003 12:17\nPara: Fernando Papa\nCC: Volker Helm; pgsql-performance@postgresql.org\nAsunto: Re: [P... |
[
{
"msg_contents": "\nI was play with nested loops, and I found this:\n\n\nOriginal explain:\n\n Limit (cost=9.75..9.76 rows=1 width=479) (actual\ntime=436858.90..436858.93 rows=8 loops=1)\n -> Sort (cost=9.75..9.76 rows=1 width=479) (actual\ntime=436858.88..436858.89 rows=8 loops=1)\n Sort Key: con... |
[
{
"msg_contents": "On Mon, Aug 04, 2003 at 15:05:08 -0600,\n \"Valsecchi, Patrick\" <patrick.valsecchi@nagrastar.com> wrote:\n> Sir,\n> \n> I did a search with the \"index\" keyword on the mailing list archive and it did come with no result. Sorry if it's a known bug. \n\nIt isn't a bug. It is a design trade o... |
[
{
"msg_contents": "\nThanks Tom. I vaccumed full every night. Now I drop function index and\nchange the upper. Nothing change (I know, total time rise because we are\ndoing other things on database now). But you can see, if was any\nperformace gain i didn't see. Actually I get better results when I\ndisable nes... |
[
{
"msg_contents": "Sorry Guy,\n\nwas just a little tired yesterday.\n\n> Err... you're right... one of us say the same thing when I show the\n> Volker mail...\n\nTry to make a group by in the inline-view, so you will get something\nlike this:\n\n> \n> On Mon, 4 Aug 2003 12:02:46 -0300, \"Fernando Papa\" <fpapa@... |
[
{
"msg_contents": "I have a table\npermissions\nwith the fields (party_id integer, permission varchar, key_name varchar,\nkey_value integer)\nfor which I need to a query to see if a person has permission to carry out a\nparticular action.\nThe query looks like:\nSELECT 1\nFROM permissions\nWHERE party_id in (... |
[
{
"msg_contents": "I've been trying to search through the archives, but it hasn't been\nsuccessful.\n\nWe recently upgraded from pg7.0.2 to 7.3.4 and things were happy. I'm\ntrying to fine tune things to get it running a bit better and I'm trying\nto figure out how vacuum output correlates to tuning parameters.... |
[
{
"msg_contents": "Scott\n\n>For example, a dedicated database for a webserver would be tuned\n>differently from a server that was running both the webserver and the database on\n>the same machine. \n\nThis is the situation I'm having fun and games with so I'd be very interested. (Client has made the mistake o... |
[
{
"msg_contents": "Shridhar Daithankar wrote: \n> I agree, specifying per table thresholds would be good in autovacuum.. \n \nWhich begs the question of what the future direction is for pg_autovacuum.\n\nThere would be some merit to having pg_autovacuum throw in some tables\nin which to store persistent informa... |
[
{
"msg_contents": "I was wondering if anyone found a sweet spot regarding how many inserts to \ndo in a single transaction to get the best performance? Is there an \napproximate number where there isn't any more performance to be had or \nperformance may drop off?\n\nIt's just a general question...I don't have ... |
[
{
"msg_contents": "Trevor Astrope wrote:\n> I was wondering if anyone found a sweet spot regarding how many\n> inserts to do in a single transaction to get the best performance?\n> Is there an approximate number where there isn't any more\n> performance to be had or performance may drop off?\n> \n> It's just a... |
[
{
"msg_contents": "\nI didn't get any helpful responses to my previous email so I thought\nI would try again, this time with example code.\n\nBelow is my orignal email and code for a dead simple ASCII menu driven \napplication that demonstrates the problem. The app starts up with a\nmenu of 4 items to create t... |
[
{
"msg_contents": "\n \n> Medora Schauer wrote:\n> > I would greatly appreciate it if someone could run this \n> code in their\n> > environment and let me know if you get results similiar to mine.\n> > The INT test results in execution times of 11 - 50+ secs increasing\n> > each time the test is run. The FLOAT... |
[
{
"msg_contents": "\n> \n> > Medora Schauer wrote:\n> > > I would greatly appreciate it if someone could run this \n> > code in their\n> > > environment and let me know if you get results similiar to mine.\n> > > The INT test results in execution times of 11 - 50+ secs \n> increasing\n> > > each time the test i... |
[
{
"msg_contents": "Matthew T. O'Connor wrote:\n> Fair point, my only concern is that a backend integrated\n> pg_autovacuum would be radically different from the current libpq\n> based client application.\n\nUnfortunately, a \"configurable-via-tables\" pg_autovacuum is also going\nto be quite different from the ... |
[
{
"msg_contents": "Hi All!\n\n\n\tI have installed PostgreSQL 7.3.2 on FreeBSD 4.7, running on PC with \nCPU Pentium II 400MHz and 384Mb RAM.\n\n\tProblem is that SQL statement (see below) is running too long. With \ncurrent WHERE clause 'SUBSTR(2, 2) IN ('NL', 'NM') return 25 records. \nWith 1 record, SELECT t... |
[
{
"msg_contents": "Hello.\nI have this problem: i'm running the postgre 7.3 on a windows 2000 server with P3 1GHZ DUAL/1gb ram with good performance. For best performance i have change the server for a XEON 2.4/1gb ram and for my suprise the performance decrease 80%. anybody have a similar experience? does e... |
[
{
"msg_contents": "Hello people.\n\nI'm installing Postgresql under linux for better performance and i want to know how is the best configuration.\n\nMy server is a dual pentium3 1ghz/1gb ram/36gb scsi. running only postgresql. My question is:\n1. What is the best linux distribuition for better performance?\n2.... |
[
{
"msg_contents": "Hi,\n\n I'm running on Redhat 7.2 with postgresql 7.3.2 and I have two schema in\nthe same database 'db' and 'db_dev'. Both contain a set of >20 tables for\na total of less than 50 Mb of data each (on the order of 50k rows in\ntotal). Once in a while (often these days!), I need to synchron... |
[
{
"msg_contents": "On Wed, 6 Aug 2003, Wilson A. Galafassi Jr. wrote:\n\n> hello!!!\n> what is suggested partitioning schema for postgresql??\n> the size of my db is 5BG and i have 36GB scsi disk!\n\nThe first recommendation is to run Postgresql on a RAID set for \nreliability. \n\nI'm assuming you're building... |
[
{
"msg_contents": "hello.\nmy database size is 5GB. what is the block size recommend?\nthanks\nwilson\n\n\n\n\n\n\n\nhello.\nmy database size is 5GB. what is the block size \nrecommend?\nthanks\nwilson",
"msg_date": "Wed, 6 Aug 2003 17:34:39 -0300",
"msg_from": "\"Wilson A. Galafassi Jr.\" <juniorlist@y... |
[
{
"msg_contents": "> what is suggested partitioning schema for postgresql?? \n> the size of my db is 5BG and i have 36GB scsi disk! \n\nThe interesting forms of partitioning kind of assume that you have\nmultiple disk drives.\n\nIf you only have one drive, then there is not terribly much reason to\nprefer anyth... |
[
{
"msg_contents": "http://kerneltrap.org/node/view/715\n\nMight be interesting for people running 2.6. Last I heard, the anticipatory \nscheduler did not yield it's maximum throughput for random reads. So they said \ndatabase guys would not want it right away.\n\nAnybody using it for testing? Couple of guys are... |
[
{
"msg_contents": "\nIn theory, the news2mail gateway is back in place ...\n\n",
"msg_date": "Thu, 7 Aug 2003 17:49:43 +0000 (UTC)",
"msg_from": "\"Marc G. Fournier\" <scrappy@hub.org>",
"msg_from_op": true,
"msg_subject": "Testing gateway"
}
] |
[
{
"msg_contents": "I have just installed redhat linux 9 which ships with Pg\n7.3.2. Pg has to be setup so that data inserts (blobs) should\nbe able to handle at least 8M at a time. The machine has\ntwo P III 933MHz CPU's, 1.128G RAM (512M*2 + 128M), and\na 36 Gig hd with 1 Gig swap and 3 equal size ext3 partiti... |
[
{
"msg_contents": "\nSuSE 7.3, PostgreSQL cvshead (7.4)\n\nThis is as far as I've gotten with 7.4.\nIt is built and configured like my 7.3 installation\non the same machine. I have built from CVS previously. \nAnd the production sources always builds very nice and clean.\n\nNothing runs. gbd output is below.... |
[
{
"msg_contents": "Hi PostrgeSQL team,\n\nMy PostrgeSQL installed as part of CYGWIN (Windows XP).\nI have compared performance PostrgeSQL to MS SQL (I used a little Java\nprogram with number of inserts in table).\nMS SQL is faster in 12 times :-(\nIt's very strange results.\nGuys who developed this server: wha... |
[
{
"msg_contents": "Hi,\n Currently we are using postgresql 7.3 with Redhat linux 9. We find that when we try to execute 200,000 update statement through JDBC, the performance of degraded obviously for each update statement when comparing with less update statement(eg. 5000). Is there any suggestion that we c... |
[
{
"msg_contents": "Hi all,\n\nI posted this problem on the sql list, and was referred to this list in stead.\nI have attached an sql statement that normally runs under 3 minutes.\nThat is, until I vacuum analyze the database (or just the tables in the query),\nthen the same query runs longer than 12 hours, and ... |
[
{
"msg_contents": "Folks:\n\nI have a live and a test database for an in-production system running on \n7.2.4.\n\nThe test database is a copy of the live one. They are running on the same \ncopy of Postgres, on the same server. I use the test database to test \nchanges before I apply them to the production s... |
[
{
"msg_contents": "Dear master:\n I have learned postgreSQL for serveral days, now i meet some problems. when I use a TPCC(Transaction Processing Performance Council) test program to test the performance of postgreSQL , postgreSQL works very slowly, it almost need 1 minute to finish a transaction, and the... |
[
{
"msg_contents": "\nHere is one talking about ext2 corruption from power failure from 2002:\n\n http://groups.google.com/groups?q=ext2+corrupt+%22power+failure%22&hl=en&lr=&ie=UTF-8&selm=alvrj5%249in%241%40usc.edu&rnum=9\n\n---------------------------------------------------------------------------\n\npgman ... |
[
{
"msg_contents": "FWIW, Informix can be run using a \"cooked\" (Unix) file for storing data or it uses \"raw\" disk space and bypasses the ordinary (high level) UNIX controllers and does its own reads/writes. About 10 times faster and safer. Of course, itmay have taken a lot of programmer time to make that sol... |
[
{
"msg_contents": "I want to know, how can I improve the performance of postgres, I have a java class thar inserts register every 30 min but is very slow. \nThe process of postgres consume the 78% of CPU.\n\nI have in /etc/system\n\nset shmsys:shminfo_shmmax=0x50000000\nset shmsys:shminfo_shmmni=0x100\nset shms... |
[
{
"msg_contents": "\n\tHello,\n\n\tI recently switched to 7.4 beta 1, one query that used to be\ncorectly executed uder 7.3.3 albeit slowly now abnormaly ends when the\nbackend can't get more memory when it ate about 480 MB of swap space.\nI suspect that this behavior is the result of a 7.4 beta 1 bug but I\nwa... |
[
{
"msg_contents": "-----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\nMy database is approximately 8gb in size. My application is 24/7. I'm \nconstantly cycling through data. I analyze every 15 minutes but I'm noticing \nthat during a vacuum the database becomes extremely sluggish.\n\nIn some cases the operat... |
[
{
"msg_contents": "I have the following setup :\n Apache 2 + mod_perl 2\n Postgres 7.3.2\n\nI need to is measure the perfomance of a ticketing system (written in perl)\nwhich has web interface (html::mason, apache2) with Pg as a backend. Users\nof the ticketing system can only connect to the backend via the w... |
[
{
"msg_contents": "Hi all,\n\nCouple of days ago, one of my colleague, Rahul Iyer posted a query regarding \ninsert performance of 5M rows. A common suggestion was to use copy.\n\nUnfortunately he can not use copy due to some constraints. I was helping him to \nget maximum out of it. We were playing with a data... |
[
{
"msg_contents": "Hi ,\nI am using pg 7.3.3 on RH 7.3,\ndual Athlon\n1 GB RAM.\n\nI have 2 tables a_acc and a_vid_doc (all PK are int).\n\nsizes:\n\n select count(IDS) from a_acc;\n count\n---------\n 1006772\n\nselect count(IDS) from a_vid_doc;\n count\n-------\n 25\n\nI have problem with the join ot this... |
[
{
"msg_contents": "Hi ,\nI am using pg 7.3.3 on RH 7.3,\ndual Athlon\n1 GB RAM.\n\nI have 2 tables a_acc and a_vid_doc (all PK are int).\n\nsizes:\n\n select count(IDS) from a_acc;\n count\n---------\n 1006772\n\nselect count(IDS) from a_vid_doc;\n count\n-------\n 25\n\nI have problem with the join ot this... |
[
{
"msg_contents": "I have found many reasons not to index small tables (see .\nBut I still have questions.\n\n1. How small is small enough?\n2. am I supposed to drop primary key index on so called 'label tables'\nknowing I am using this pk in join clause?\n3. Is it good to drop index on small table If I know I ... |
[
{
"msg_contents": "I try to increase my no. of connections of the Postmaster in my client's\nSolaris9 box but fails:\n\nWhen startup using bin/postmaster -N 300 -B 2000 -D /export/data, I got the\nmessage:\n\nIpcSemaphoreCreate: semget(key=5432004, num=17, 03600) failed: No space left\non device\n\nThis error d... |
[
{
"msg_contents": "Hi,\n\nI'm having a performance problem in postgresql.\n\nI have a rather complex view (attached) which, on itself, executes very\nfast, as it should. Normally this view is unordered. When I order the\nview itself (see comments in attachment), the view executes with about\nthe same speed sinc... |
[
{
"msg_contents": "Hi,\n\nAfter my first mail, I found a better testcase (well it's a about the\nsame, but you have a better look to compare).\nSee attachment prob-query.sql\n\nThe ORDER BY in the FROM clause uses the index.\nThe last ORDER BY does not use the index. \nThey should be the same...\n\nThe query pl... |
[
{
"msg_contents": "http://195.199.65.92/~horvaths/pgperformance.html\n\nOne of my friend do these tests. We think about the best filesystem for\nthe Linux/Postgres systems.\n\nThe four test was:\n\nteszt1 - 10.000 inserts\nteszt2 - 10.inserts, 10 in one trans.\nteszt3 - 14.000.000 inserts, 1.000 in one trans.\n... |
[
{
"msg_contents": "> Apart from avoiding views or subselects when sorting afterwards and\n> putting the whole bunch in a huge SQL statement (which i'll have to\n> produce on-the-fly), do you have an other alternative? \n> The 2 seconds is way to much, as the database will eventually run on a\n> machine that is ... |
[
{
"msg_contents": "\nHello,\n\nHere is my exp. regarding VIEW (create VIEW view_name AS SELECT ....)\noptimization.\nI have found strange (or at least not very intelligent) behavior of query\nplanner (v.7.3.4).\nGiven task is to take data from 14 tables, join, group, sort, etc. I\ncurrently use about ten views ... |
[
{
"msg_contents": "This message was created automatically by mail delivery software (Exim).\n\nA message that you sent could not be delivered to one or more of its\nrecipients. This is a permanent error. The following address(es) failed:\n\n cellog@sourceforge.net\n unknown local-part \"cellog\" in domain \... |
[
{
"msg_contents": "Hi--\n\nI had been thinking of the issues of multimaster replication and how to \ndo highly available, loadballanced clustering with PostgreSQL. Here is \nmy outline, and I am looking for comments on the limitations of how this \nwould work.\n\nSeveral PostgreSQL servers would share a virtu... |
[
{
"msg_contents": "Hi List,\n\n I have posted a subjetc on the admin list but I thought that it might fit \nbetter on this list as follow:\n\nHi List,\n\n As I said before, I'm not a DBA \" yet\" , but I'm learning ... and I \nalready have a PostgreSQL running, so I have to ask some help...\n I go... |
[
{
"msg_contents": "I'm very new to Postgresql, so don't beat me up to bad if you see a problem,\njust inform me what I've done wrong.\n\nI'm use Postgresql 7.2 (PeerDirect's Windows port) on Win2000 384MB RAM 10GB\nof Free space 800 Mhz, using the ODBC driver 7.03.01.00.\n\nI have a table that has 103,000 recor... |
[
{
"msg_contents": "Here's an interesting situation, and I think it may be just that Sun\nstinks.\n\nI was recently given the go ahead to switch from Informix to Postgres on\none of our properties. (I had dozens of performance comparisons showing\nhow slow Informix was compared to it and my boss seeing me strug... |
[
{
"msg_contents": "need input on parameter values on confs...\n\nour database is getting 1000 transactions/sec on peak periods..\n\nsitting on RH 7.3 \n2.4.7-10smp\nRAM: 1028400\nSWAP: 2040244\n\nqueries are just simple select statements based on timestamps, varchars...\nless on joins... on a 300K rows..\n\n\nT... |
[
{
"msg_contents": "I'm wondering if the good people out there could perhaps give me some\npointers on suitable hardware to solve an upcoming performance issue. \nI've never really dealt with these kinds of loads before, so any\nexperience you guys have would be invaluable. Apologies in advance for\nthe amount ... |
[
{
"msg_contents": "Hey all.\n\nI said I was going to do it, and I finally did it.\n\nAs with all performance tests/benchmarks, there are probably dozens or\nmore reasons why these results aren't as accurate or wonderful as they\nshould be. Take them for what they are and hopefully everyone can\nlearn a few thi... |
[
{
"msg_contents": "Hi all,\n\nHopefully a quick query. \n\nIs there anything special I should look at when configuring either\nPostgreSQL and Linux to work together on an 8-way Intel P-III based system?\n\nI currently have the database system running fairly nicely on a 2 CPU\nPentium-II 400 server with 512MB m... |
[
{
"msg_contents": "\n\tHi,\n\n\tI have a (big) problem with postgresql when making lots of \ninserts per second. I have a tool that is generating an output of ~2500 \nlines per seconds. I write a script in PERL that opens a pipe to that \ntool, reads every line and inserts data.\n\tI tryed both commited and not... |
[
{
"msg_contents": "I'm running into some performance problems trying to execute simple queries.\n\npostgresql version 7.3.3\n.conf params changed from defaults.\nshared_buffers = 64000\nsort_mem = 64000\nfsync = false\neffective_cache_size = 400000\n\nex. query: select * from x where id in (select id from y);\n... |
[
{
"msg_contents": "Hi all,\n\nI did some benchmarking using pgbench and postgresql CVS head, compiled \nyesterday. \n\nThe results are attached. It looks like 2.6.0-test4 does better under load but \nunder light load the performance isn't that great. OTOH 2.4.20 suffer major \ndegradation compare to 2.6. Looks ... |
[
{
"msg_contents": "Someone who has my:\n\n gearond@oit.edu\n\nemail address has an infected computer, infected with the SoBig.F virus. \nI'm getting 200+ infected emails a day from that person(s).\n\nGo to this site and do a free online virus scan. It's safe, and done by \none of the two top virus scanning c... |
[
{
"msg_contents": "I'm running into some performance problems trying to execute simple \nqueries.\n\npostgresql version 7.3.3\n.conf params changed from defaults.\nshared_buffers = 64000\nsort_mem = 64000\nfsync = false\neffective_cache_size = 400000\n\nex. query: select * from x where id in (select id from y);... |
[
{
"msg_contents": "Hello,\n\nWe're running a set of Half-Life based game servers that lookup user \nprivileges from a central PostgreSQL 7.3.4 database server (I recently \nported the MySQL code in Adminmod to PostgreSQL to be able to do this).\n\nThe data needed by the game servers are combined from several di... |
[
{
"msg_contents": "I have a table that has about 20 foreign key constraints on it. I think \nthis is a bit excessive and am considering removing them ( they are all \nrelated to the same table and I don't think there is much chance of any \nintegrity violations ). Would this improve performance or not?\n\nthank... |
[
{
"msg_contents": "I just ran a handful of tests on a 14-disk array on a SCSI hardware\nRAID card.\n\n From some quickie benchmarks using the bonnie++ benchmark, it appears\nthat the RAID5 across all 14 disks is a bit faster than RAID50 and\nnoticeably faster than RAID10...\n\nSample numbers for a 10Gb file (sp... |
[
{
"msg_contents": "I'm surprised at the effort pgsql requires to run one of my queries. I \ndon't know how to tune this query.\n\n Column | Type | Modifiers\n------------+--------------+-----------\n the_id | integer | not null\n the_date | date | not null\n num1 | nume... |
[
{
"msg_contents": "Alright.\n\nTo anyone who didn't get the news the first time:\nThe first set of benchmarks were terribly skewed because FreeBSD\ndidn't properly work with the hardware I was using. Thanks to\nthose who pointed the problem out to me.\n\nI have scrounged new hardware, and insured that FreeBSD i... |
[
{
"msg_contents": "How To calcute PostgreSQL HDD grow capacity for every byte data, start from \ninstallation initialize.\n\nRegards,\n\nEko Pranoto\n",
"msg_date": "Fri, 29 Aug 2003 10:44:40 +0700",
"msg_from": "Eko Pranoto <kopra@wepeka-it.com>",
"msg_from_op": true,
"msg_subject": "PostgreSQL... |
[
{
"msg_contents": "Hi all,\n\nI have some tables (which can get pretty large) in which I want to record 'current' data as well as 'historical' data. This table has fields 'deleted' and 'deleteddate' (among other fields, of course). The field 'deleted' is false be default. Every record that I want to delete gets... |
[
{
"msg_contents": "Hi,\n\nI'm using PostgreSQL 7.3.4 and noticed a havy performance issue when\nusing the datatype text for PL/pgSQL functions instead of varchar.\n\nThis is the table:\n\nCREATE TABLE user_login_table (\n id serial,\n username varchar(100),\n PRIMARY ID (id),\n UNIQUE (username)\n);... |
[
{
"msg_contents": "Hi all,\n\nI compared 2.6 with elevator=deadline. It did bring some improvement in \nperformance. But still it does not beat 2.4.\n\nAttached are three files for details.\n\nI also ran a simple insert benchmark to insert a million record in a simple \ntable with a small int and a varchar(30).... |
[
{
"msg_contents": "I was ecstatic to hear that postgresql.com is releasing the eRServer\nreplication project to postgresql.org as open source! I'm anxious\nto get my hands on it -- actually I'm desperate: I'm under pressure to\nproduce a warm-failover server for our lab. I REALLY would like to\nget hands on ... |
[
{
"msg_contents": "Hi List,\n\n\n I still have performance problems with this sql:\n\nSELECT /*+ */\nftnfco00.estado_cliente ,\nftcofi00.grupo_faturamento ,\nSUM( DECODE( ftcofi00.atual_fatura, '-', -(NVL(ftnfpr00.qtde_duzias,0)), \n'+', NVL(ftnfpr00.qtde_duzias,0), 0) ) ,\nSUM( DECODE( ftcofi00.a... |
[
{
"msg_contents": "I'm trying to understand how I can get the planner to always do the\nright thing with this query:\n\n EXPLAIN ANALYZE\n SELECT\n\taa_t.min_date_time\n FROM\n\taa_t\n\t, bb_t\n\t, cc_t\n WHERE bb_t.bb_id = aa_t.bb_id\n\tAND aa_t.realm_id = cc_t.realm_id\n\tAND aa_t.server_id = 21\n... |
[
{
"msg_contents": "------------\n------------\n------------\n------------\n------------\nfred.brown@maps.lss.bc.ca\nwilf.tannenbaum@maps.lss.bc.ca\ndavid.mathews@maps.lss.bc.ca\n\n\n\n",
"msg_date": "Mon, 01 Sep 2003 01:45:29 GMT",
"msg_from": "\"F Brown\" <fred.brown@maps.lss.bc.ca>",
"msg_from_op"... |
[
{
"msg_contents": "\nHas anyone seen any performace problems with the use to to_timestamp?\n\nWhen I use it in a where clause I get a full file scan, when I don't it\nuses the index\nfor the query. The begin_time column is of type timestamp.\n\nThis does a full sequential scan\n\tselect id from details where b... |
[
{
"msg_contents": "Hi,\n\nI'm working on a project to make an application run on MySQL and PostgreSQL.\nI find that PostgreSQL runs up to 10 times slower than MySQL. For small records\nit is not much problems. But as the records grew (up to 12,000 records) the\ndifference is quite significant. We are talking... |
[
{
"msg_contents": "Hi everyone,\n\nSaw this earlier on today, on the mailing list of the Open Source \nDevelopment Labs people who are porting their database testing suite \nfrom SAP to PostgreSQL.\n\nThe comment near the end by Jenny Zhang (one of the porters), saying \nthat \"I will put a tar ball on SourceFo... |
[
{
"msg_contents": "Hi List,\n\n I trying to increase performance in my PostgreSQL but there is something\nwrong. when I run this SQL for the first time it takes 1 min. 40 seconds to\nreturn, but when I run it for the second time it takes more than 2 minutes, and\nI should retunr faster than the first time.... |
[
{
"msg_contents": "Hi ,\n\nI am currently using Postgresql for a Research project . I observed some performance results of Postgresql which I would like to discuss .\n\nI have a server which accepts requests from clients. It spawns a new thread for each client. The clients are trying to add entries to a relati... |
[
{
"msg_contents": "<> Version of PostgreSQL?\n \n 7.3.2-3 on RedHat 9\n<> \n<> Standard server configuration?\n \n Follow atached\n\n<> Hardware configuration?\n\n P4 1.7 Ghz\n 512 MB RAM DDR\n HD 20 GB 7200 RPM\n\n<> -----Original Message-----\n<> From: pgsql-admin-owner@postgresql.org\n<> [ma... |
[
{
"msg_contents": "I have a table with 102,384 records in it, each record is 934 bytes.\n\nUsing the follow select statement:\n SELECT * from <table>\n\nPG Info: version 7.3.4 under cygwin on Windows 2000\nODBC: version 7.3.100\n\nMachine: 500 Mhz/ 512MB RAM / IDE HDD\n\n\nUnder PG: Data is returned in 26 sec... |
[
{
"msg_contents": "(Please follow Mail-Followup-To, I'm not on the pgsql-performance\nmailing list but am on the Linux-XFS mailing list. My apologies too for\nthe cross-post. I'm cc'ing the Linux-XFS mailing list in case people\nthere will be interested in this, too.)\n\n\nHi,\n\nWe have a server running Postgr... |
[
{
"msg_contents": "Our port of OSDL DBT3 test suite to PostgreSQL (see Background\ninformation below) is nearing completion. We would also like to confirm\nour understanding of an outstanding consistency issue.\n\nWe have not been able to do meaningful kernel testing since the runs\n(all parameters/kernels bei... |
[
{
"msg_contents": "\nHi,\n\nI have a table that looks like this:\n\n DATA ID TIME\n|------|----|------|\n\nThe table holds app. 14M rows now and grows by app. 350k rows a day.\n\nThe ID-column holds about 1500 unique values (integer).\nThe TIME-columns is of type timestamp without timezone.\n\nI have one i... |
[
{
"msg_contents": "I am trying to tune my database and I discovered one select that does a\nseq scan on a table but I can't see why... All the join fields are indexed\nand I am returning just one record, so no sort is done.\nDoes it just pick seq scan for the heck of it or is it a reason?\n\nRegards,\n\nBTJ\n\n... |
[
{
"msg_contents": "Hi,\n\ni'm having _serious_ issues of postgres hogging up the CPU over time. A graph\nshowing this can be seen at http://andri.estpak.ee/cpu0.png .\n\nThe database is running on Redhat 9 (stock 2.4.20-8 kernel), on a reiserfs\npartition (~8% usage - no problem there), and this problem has bee... |
[
{
"msg_contents": "First, sorry if this has been answered before; the list search seems to\nbe down...\n\nThis is on a quad Xeon-PII 450 machine running FBSD 4.8.\n\n84386 pgsql 64 0 104M 99M RUN 1 78:20 61.87% 61.87% postgres\n84385 decibel 64 0 3748K 2268K CPU1 3 49:49 37.79% 37.79% pg... |
[
{
"msg_contents": "I have:\n> psql (PostgreSQL) 7.3.2\nI do a modification of 'access/index/indexam.c' where I comment:\n> #ifdef NOT_USED\n> if (scan->keys_are_unique && scan->got_tuple)\n> {\n> if (ScanDirectionIsForward(direction))\n> {\n> ... |
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