Re: [GENERAL] scripts in Postgres

2005-05-03 Thread Rolf Østvik
[EMAIL PROTECTED] (Craig Bryden) wrote in news:[EMAIL PROTECTED]: Hi Sean Thanks for that. Does psql work differently to pgAmin III's Query program? I have tried exactly what you showed me below, and it did not work. It seems like the script stops on first error, and the first error is

Re: [GENERAL] Tuning queries inside a function

2005-05-03 Thread Richard Huxton
Mike Nolan wrote: Maybe you could return a refcursor pointing to the EXPLAIN ANALYZE of the query inside the function. The raw materials exist to do this: if you know which elements of a query will be replaced by plpgsql variables, you can duplicate the results via PREPARE foo(...) AS ...

Re: [GENERAL] scripts in Postgres

2005-05-03 Thread Sean Davis
On May 3, 2005, at 2:50 AM, Rolf Østvik wrote: [EMAIL PROTECTED] (Craig Bryden) wrote in news:[EMAIL PROTECTED]: Hi Sean Thanks for that. Does psql work differently to pgAmin III's Query program? I have tried exactly what you showed me below, and it did not work. It seems like the script stops on

[GENERAL] query is wery slow with _t() function

2005-05-03 Thread Margusja
Hi, I made function: CREATE FUNCTION _t(varchar,integer) RETURNS varchar AS ' DECLARE str ALIAS FOR $1; lang ALIAS FOR $2; value varchar; BEGIN SELECT t.txt INTO value FROM sys_txt t INNER JOIN sys_txt_code c ON c.id = t.code_id WHERE ''#''||c.code||''#'' = str AND t.lang_id = lang;

Re: [GENERAL] query is wery slow with _t() function

2005-05-03 Thread Richard Huxton
Margusja wrote: Hi, I made function: CREATE FUNCTION _t(varchar,integer) RETURNS varchar AS ' DECLARE str ALIAS FOR $1; lang ALIAS FOR $2; value varchar; BEGIN SELECT t.txt INTO value FROM sys_txt t INNER JOIN sys_txt_code c ON c.id = t.code_id WHERE ''#''||c.code||''#'' = str AND

[GENERAL] some questions : psql

2005-05-03 Thread FERREIRA, William (COFRAMI)
Title: iterate over refcursor hi, i have some questions about psql. i'm trying to writea script for deploying my database and i have some questions : 1- is it possible to set a default schema ? i tried : set DEFAULT SCHEMA base1; but it didn't worked 2- is it possible to have one file

Re: [GENERAL] some questions : psql

2005-05-03 Thread Pavel Stehule
Hello 1- is it possible to set a default schema ? i tried : set DEFAULT SCHEMA base1; but it didn't worked SET search_path to base1; 2- is it possible to have one file with global values and to use them when creating functions. one example is : i have a temporary directory, and

Re: [Dbdpg-general] Re: [GENERAL] 'prepare' is not quite schema-safe

2005-05-03 Thread Vlad
Greg, thanks for the suggestion. looking into other thread on the list, it looks like setting $dbh-{pg_server_prepare} = 0; would solve my problem as well. With this setting will dbd::pg behave in old-style (i.e. prepare_cached prepared and stored on dbd::pg side), or it won't cache anything at

[GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Robin Boerdijk
Hi, Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the PostgreSQL server logic runs inside the Apache server processes, rather than

Re: [GENERAL] some questions : psql

2005-05-03 Thread FERREIRA, William (COFRAMI)
sorry, i badly explain my second problem (and it make me think about an other question :) ) what i really want to say is : i would like to declare a global variable : DEFINE pool = 10 and use it into a function @createMDNS.sql pool and my file createMDNS.sql is create or

[GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Alexandre Biancalana
Hi list, I'm running postgresql 8.0.1 on FreeBSD 4.11-STABLE, the machine is and AMD Sempron 2.2, 1GB Ram.. I use postgresql as database for dspam, an spam classification program. This database have and moderated use, on averange 10 simultaneous conections executing relative big queries using

[GENERAL] Dynamically access to field on a RECORD variable

2005-05-03 Thread Ricardo Vaz Mannrich
Supose I have this function CREATE OR REPLACE my_func(TEXT) RETURNS text AS ' DECLARE var_name ALIAS FOR $1; rec RECORD; BEGIN SELECT * INTO rec FROM my_table WHERE my_key = 1; -- Here is my problem RETURN rec.var_name; END; ' LANGUAGE plpgsql; SELECT

Re: [GENERAL] some questions : psql

2005-05-03 Thread Pavel Stehule
On Tue, 3 May 2005, FERREIRA, William (COFRAMI) wrote: sorry, i badly explain my second problem (and it make me think about an other question :) ) what i really want to say is : i would like to declare a global variable : There is one big difference. PostgreSQL don't know global variables.

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 07:53, Robin Boerdijk wrote: Hi, Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the PostgreSQL server logic

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Thomas Hallgren
Robin Boerdijk wrote: Hi, Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the PostgreSQL server logic runs inside the Apache server

Re: [GENERAL] some questions : psql

2005-05-03 Thread FERREIRA, William (COFRAMI)
the search_path works well thanks a lot -Message d'origine- De : Pavel Stehule [mailto:[EMAIL PROTECTED] Envoyé : mardi 3 mai 2005 16:09 À : FERREIRA, William (COFRAMI) Cc : pgsql-general@postgresql.org Objet : Re: [GENERAL] some questions : psql On Tue, 3 May 2005, FERREIRA, William

[GENERAL] does database shut down cleanly when WAL device fails?

2005-05-03 Thread Brandon Craig Rhodes
In planning a Postgresql deployment, our team discovered that we have different understandings of how the WAL affects database reliability, and we have not found the Postgresql manual quite explicit enough to distinguish between the following two theories: a) Putting the WAL on a separate

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Tom Lane
Alexandre Biancalana [EMAIL PROTECTED] writes: Watching postgresql logs I see the following messages ocurs a lot of times in a day: May 3 06:58:44 e-filter postgres[250]: [21-1] LOG: server process (PID 59608) was terminated by signal 10 You need to find out what's triggering that.

Re: [GENERAL] Dynamically access to field on a RECORD variable

2005-05-03 Thread Tom Lane
Ricardo Vaz Mannrich [EMAIL PROTECTED] writes: Is it possible? Not in plpgsql. I believe you could do it in any of the other PLs though. regards, tom lane ---(end of broadcast)--- TIP 9: the planner will ignore your

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 08:39, Alexandre Biancalana wrote: Hi list, I'm running postgresql 8.0.1 on FreeBSD 4.11-STABLE, the machine is and AMD Sempron 2.2, 1GB Ram.. I use postgresql as database for dspam, an spam classification program. This database have and moderated use, on averange

Re: [GENERAL] does database shut down cleanly when WAL device fails?

2005-05-03 Thread Tom Lane
Brandon Craig Rhodes [EMAIL PROTECTED] writes: And the disputed point: - If the drive holding the WAL fails, then the database engine will shut down cleanly by writing everything in RAM out to the real database tables, and no data will be lost. Whoever

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Joshua D. Drake
Thomas Hallgren wrote: Robin Boerdijk wrote: Hi, Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the PostgreSQL server logic runs inside the

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Robin Boerdijk
--- Thomas Hallgren [EMAIL PROTECTED] wrote: Robin Boerdijk wrote: Hi, Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Robin Boerdijk
Apologies if this has been discussed before, but I was wondering if there have been any efforts in the past to provide a deep integration of PostgreSQL with Apache. What I mean by deep integration is that the PostgreSQL server logic runs inside the Apache server processes, rather

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Vlad
Alexandre, I saw reports (and observed the problem myself) that all sort of different softwares suffering from signal 11 under FreeBSD (more often seen on 5-STABLE). So far the collection is: Apache 1.3 (myself), Mysql (recent descussion on freebsd-stable list) and now postgresql... The hardware

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Vlad
oops... you were writing about signal 10 not signal 11. my bad - sorry On 5/3/05, Vlad [EMAIL PROTECTED] wrote: Alexandre, I saw reports (and observed the problem myself) that all sort of different softwares suffering from signal 11 under FreeBSD (more often seen on 5-STABLE). So far the

[GENERAL] pgEdit 1.1 beta

2005-05-03 Thread John DeSoi
The first beta of pgEdit 1.1 is now available. New features and enhancements include: - Error information is collected with each execution. New commands to jump to each error location in the file even if lines are added or removed. - Improved integration with psql; most psql commands are now

Re: [GENERAL] Dynamically access to field on a RECORD variable

2005-05-03 Thread hatuan
I am newbie. Could you give a example? Thank you. Ricardo Vaz Mannrich [EMAIL PROTECTED] writes: Is it possible? Not in plpgsql. I believe you could do it in any of the other PLs though. regards, tom lane ---(end of broadcast)--- TIP 9:

[GENERAL] MVCC and insert

2005-05-03 Thread Allen
Hows does MVCC handle two concurrent tasks trying to insert the same row? Example pseudo-code: select row from table where... if not found, prepare row insert row else update row ... continue processing what happens if TASK1 inserts the row first, and continues processing (no commit

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Michael Fuhr
On Tue, May 03, 2005 at 09:54:03AM -0500, Scott Marlowe wrote: You might want to look in your signal man page on BSD and see what signal 10 means. On solaris it's a bus error. Not a clue what it is in FreeBSD myself though. Signal 10 is SIGBUS (bus error) on FreeBSD 4.11. Somewhere under

Re: [GENERAL] Postgresql and VBA vs Python

2005-05-03 Thread vladimir
Like I said before get the personal/standard version of Delphi 6,7 or 2005, it's 99.99 and you can connect to postgres with it using third party component sets like Zeos. (2005 may not be available yet) Zeos was ported to http://www.lazarus.freepascal.org/ (a free Delphi). I did test the

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Alexandre Biancalana
You need to find out what's triggering that. Turning on query logging would be a good way of investigating. Which directives can I use to enable this ? debug_print_parse ? debug_print_rewritten ? debug_print_plan ? debug_pretty_print ? Rather large, shared buffers for a machine with only 1

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Alex Turner
Wouldn't it just be cheaper to buy a second machine than do all of that? Alex Turner netEconomist On 5/3/05, Robin Boerdijk [EMAIL PROTECTED] wrote: --- Thomas Hallgren [EMAIL PROTECTED] wrote: Robin Boerdijk wrote: Hi, Apologies if this has been discussed before, but I was wondering

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Michael Fuhr
On Tue, May 03, 2005 at 01:36:13PM -0300, Alexandre Biancalana wrote: The system does not generate core dump file for this error. Are you sure? Where did you look and what file name did you look for? Unless you've changed the kern.corefile sysctl setting, the file should be named

[GENERAL] Adding Records With SERIAL Primary Key

2005-05-03 Thread Rich Shepard
I may have missed this in the docs; if so, please tell me where to find the answer there. If not, I still need to learn how to resolve this situation. The database schema has been designed and the tables are ready to be created. Once they exist, I want to load data into the tables in batch

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Michael Fuhr
On Tue, May 03, 2005 at 10:37:03AM -0600, Michael Fuhr wrote: Signal 10 is SIGBUS (bus error) on FreeBSD 4.11. Somewhere under $PGDATA there might be a core dump named postmaster.core Correction: the core dump should be named postgres.core (at least it is on my FreeBSD 4.11-STABLE system if

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 11:36, Alexandre Biancalana wrote: You need to find out what's triggering that. Turning on query logging would be a good way of investigating. Which directives can I use to enable this ? debug_print_parse ? debug_print_rewritten ? debug_print_plan ?

Re: [GENERAL] does database shut down cleanly when WAL device

2005-05-03 Thread Ragnar Hafstað
On Tue, 2005-05-03 at 10:30 -0400, Brandon Craig Rhodes wrote: theories: a) Putting the WAL on a separate device from the database tables not only increases efficiency, but reliability as well - because as long as one keeps a database backup and a WAL history that goes

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Joshua D. Drake
I agree that it is not trivial, but is it feasible? Specifically, I'm thinking about the following approach: Everything is feasible but that doesn't mean it is sane to do so :). If you were going to do that you would probably be better served looking at something like sqllite. Sincerely, Joshua

Re: [GENERAL] Dynamically access to field on a RECORD variable

2005-05-03 Thread Ricardo Vaz Mannrich
If it's not possible, can I create a function that gets a RECORD and a tablename and returns the correct value. For example: CREATE FUNCTION my_value(TEXT, RECORD) RETURNS TEXT AS ' DECLARE table_name ALIAS FOR $1 rec ALIAS FOR $2 BEGIN IF (table_name = 'my_table1') THEN

Re: [GENERAL] Adding Records With SERIAL Primary Key

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 11:58, Rich Shepard wrote: I may have missed this in the docs; if so, please tell me where to find the answer there. If not, I still need to learn how to resolve this situation. The database schema has been designed and the tables are ready to be created. Once

Re: [GENERAL] Adding Records With SERIAL Primary Key

2005-05-03 Thread Rich Shepard
On Tue, 3 May 2005, Scott Marlowe wrote: When loading in data using the copy command, one can set the columns to be copied, and the system will insert the serial value for you if you leave that column out of the list. Scott, Aha! I thought this would be the case, but I was not sure. Many thanks,

[GENERAL] Sorting by constant values

2005-05-03 Thread Robert Fitzpatrick
I have a column that I want to sort by certain values. The values are Unit, Exterior and Common. I want all the records with Unit first, Common second and Exterior last in the sort order. These are the only 3 possible values, is there a way to sort manually like that with the alphanumeric values?

[GENERAL] Date addition/subtraction

2005-05-03 Thread Craig Bryden
Hi How in postgres can I do date/time subtraction or addition. e.g. If I want to get today's date - 30 days? or current_timestamp - 1 hour? Thanks Craig ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate

Re: [GENERAL] Date addition/subtraction

2005-05-03 Thread Franco Bruno Borghesi
It's easy. You have to know that INTERVAL data type exist, so: SELECT current_date - '30 days'::interval SELECT current_timestamp - '1 hour'::interval 2005/5/3, Craig Bryden [EMAIL PROTECTED]: HiHow in postgres can I do date/time subtraction or addition.e.g. If I want to get today's date - 30

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Alexandre Biancalana
On 5/3/05, Scott Marlowe [EMAIL PROTECTED] wrote: On Tue, 2005-05-03 at 11:36, Alexandre Biancalana wrote: You need to find out what's triggering that. Turning on query logging would be a good way of investigating. Which directives can I use to enable this ? debug_print_parse ?

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 12:25, Alexandre Biancalana wrote: On 5/3/05, Scott Marlowe [EMAIL PROTECTED] wrote: On Tue, 2005-05-03 at 11:36, Alexandre Biancalana wrote: You need to find out what's triggering that. Turning on query logging would be a good way of investigating. Which

Re: [GENERAL] Sorting by constant values

2005-05-03 Thread Franco Bruno Borghesi
You can order by conditions, lets say column='Unit'. The evaluation of a conditions will give you 't' or 'f', and alfabetically 'f' 't'... you should use DESC to get the matches first. So, it would be more or less like this: ORDER BY column='Unit' DESC, column='Exterior' DESC, column='Common'

Re: [GENERAL] Date addition/subtraction

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 12:32, Craig Bryden wrote: Hi How in postgres can I do date/time subtraction or addition. e.g. If I want to get today's date - 30 days? or current_timestamp - 1 hour? select now()-interval'1 hour' and so on. ---(end of

[GENERAL] unsubscribe

2005-05-03 Thread Arcane_Rhino
unsubscribe -farewell general [EMAIL PROTECTED] ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq

Re: [GENERAL] Sorting by constant values

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 12:29, Robert Fitzpatrick wrote: I have a column that I want to sort by certain values. The values are Unit, Exterior and Common. I want all the records with Unit first, Common second and Exterior last in the sort order. These are the only 3 possible values, is there a

Re: [GENERAL] Date addition/subtraction

2005-05-03 Thread Ragnar Hafstað
On Tue, 2005-05-03 at 19:32 +0200, Craig Bryden wrote: How in postgres can I do date/time subtraction or addition. e.g. If I want to get today's date - 30 days? or current_timestamp - 1 hour? easier than you think select current_timestamp - interval '1 hour'; select current_date -interval

Re: [GENERAL] Sorting by constant values

2005-05-03 Thread Ragnar Hafstað
On Tue, 2005-05-03 at 13:29 -0400, Robert Fitzpatrick wrote: I have a column that I want to sort by certain values. The values are Unit, Exterior and Common. I want all the records with Unit first, Common second and Exterior last in the sort order. These are the only 3 possible values, is

Re: [GENERAL] MVCC and insert

2005-05-03 Thread Alvaro Herrera
On Tue, May 03, 2005 at 12:28:05PM -0400, Allen wrote: Hows does MVCC handle two concurrent tasks trying to insert the same row? Example pseudo-code: select row from table where... if not found, prepare row insert row else update row ... continue processing what happens

Re: [GENERAL] 7.3.9 Install Question - init.d/postgresql error?

2005-05-03 Thread Dianne Chen
All, Thank you for the confirmation and reply. DC -- --- Devrim GUNDUZ [EMAIL PROTECTED] wrote: Anyway, I think it will be better to fix it compeletely in 7.3.10. Apologies everyone :( It will probably work, but I haven't compared the 7.3 and 7.4 initscripts in

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Alexandre Biancalana
Thank you for the detailed explanation Scott, they are very handy !! I reduced the shared_buffers to 32768, but the problem still occurs. Any other idea ?? ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 15:04, Alexandre Biancalana wrote: Thank you for the detailed explanation Scott, they are very handy !! I reduced the shared_buffers to 32768, but the problem still occurs. Any other idea ?? Yeah, I had a sneaking suspicion that shared_buffers wasn't causing the

Re: [GENERAL] postgresql 8 abort with signal 10

2005-05-03 Thread Alexandre Biancalana
Ohhh god :( The FreeBSD is the last STABLE version. I can try to change some hardware, I already changed memory, what can I try now ? the processor ? motherboard ?? On 5/3/05, Scott Marlowe [EMAIL PROTECTED] wrote: On Tue, 2005-05-03 at 15:04, Alexandre Biancalana wrote: Thank you for

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Thomas Hallgren
Robin Boerdijk wrote: Why would this web/database server be limited to using only one connection? No it wouldn't. I misunderstood your question. It's one process/one connection. If you don't use Apache as a multi-threaded server, then your question makes more sense. Still, it's a lot of work to

[GENERAL] Favorable Postgresql write up

2005-05-03 Thread Dann Corbit
http://www.suite101.com/article.cfm/oracle/115560 ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])

[GENERAL] plpythonu and dollar quoting

2005-05-03 Thread CSN
Can dollar quoting be used with plpythonu (like with plperl - http://www.postgresql.org/docs/8.0/interactive/plperl.html#PLPERL-FUNCS)? When trying to create a function I get this error: 'syntax error at or near $' If I use single quotes, then escape all quotes and (a lot of) backslashes in the

Re: [GENERAL] Favorable Postgresql write up

2005-05-03 Thread Mohan, Ross
It's nice, but...it couldn't possibly be more subjective, and his ranking of documentation as 5 out of 10 is funny. He apparently did not even find these many hosted listservs (only Usenet). shrug I hope he enjoys his ongoing reviews; I suppose it can't hurt? -Original Message- From:

[GENERAL] Interesting article on transactional algorithms includes PostgreSQL study

2005-05-03 Thread Dann Corbit
http://www.cs.cmu.edu/~harchol/Papers/actual-icde-submission.pdf ---(end of broadcast)--- TIP 8: explain analyze is your friend

[GENERAL] calculated identity field in views, again...

2005-05-03 Thread Zlatko Matic
I asked this question several weeks ago, but nobody proposed a solution, so I am repeating the same question again... I have an MS Access front-end for a database on PostgreSQL. I could use pass-through queries as record sources for reports and it works fine... Unfortunately, MS Access doesn't

Re: [GENERAL] plpythonu and dollar quoting

2005-05-03 Thread CSN
Nevermind, I see dollar-quoting was added in 8.0. --- CSN [EMAIL PROTECTED] wrote: Can dollar quoting be used with plpythonu (like with plperl - http://www.postgresql.org/docs/8.0/interactive/plperl.html#PLPERL-FUNCS)? When trying to create a function I get this error: 'syntax error at

Re: [GENERAL] plpythonu and dollar quoting

2005-05-03 Thread Michael Fuhr
On Tue, May 03, 2005 at 02:46:04PM -0700, CSN wrote: Can dollar quoting be used with plpythonu (like with plperl - Yes, if you're using PostgreSQL 8.0 or later. Dollar quotes have nothing to do with the function's language -- they're just another way to quote a string.

[GENERAL] default column value using a function, trigger, or whatever

2005-05-03 Thread Roderick A. Anderson
I am trying to come up with a method to have a default value for a column based on a function and other columns. I'm hoping ( well not too much ) that what I figure out here will apply to MS SQL Server as I am stuck using it unless I can prove there ain't no way it's going to happen. ( Now

Re: [GENERAL] default column value using a function, trigger, or

2005-05-03 Thread Scott Marlowe
On Tue, 2005-05-03 at 17:31, Roderick A. Anderson wrote: I am trying to come up with a method to have a default value for a column based on a function and other columns. I'm hoping ( well not too much ) that what I figure out here will apply to MS SQL Server as I am stuck using it unless I

[GENERAL] Very interesting article about the future of databases

2005-05-03 Thread Jim C. Nasby
For those who didn't see it on slashdot: http://www.acmqueue.org/modules.php?name=Contentpa=showpagepid=293 What's interesting is that PostgreSQL is already working on some of these things. Of note, there's a patch to allow sequential scans to 'piggyback' on top of other sequential scans. See the

Re: [GENERAL] Very interesting article about the future of databases

2005-05-03 Thread Mohan, Ross
w/o reading the URL docs, it sounds suspiciously like tagged command queueing for sequential scans. pause for comedic effect I wonder what the best way to spend $7K for performance improvement might be? ;-) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On

Re: [GENERAL] Deep integration of PostgreSQL with Apache

2005-05-03 Thread Greg Sabino Mullane
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I think the closest you are going to get is Apache::DBI however sense PostgreSQL is processed based you are going to get a new connection for every connection to Apache. On any reasonably busy site that can spell doom. Actually, this is a

[GENERAL] getting the ranks of items

2005-05-03 Thread Randal L. Schwartz
I'm probably asking a FAQ, but a few google searches didn't seem to point me in the right place. Is there a simple way with PostgreSQL to assign relative ranks to the result of a query ORDER BY? That is, I want to either have a view that cheaply assigns the ranks, or be able to update a column

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Matthew Terenzio
On May 3, 2005, at 8:30 PM, Randal L. Schwartz wrote: Is there a simple way with PostgreSQL to assign relative ranks to the result of a query ORDER BY? What do you mean by ranks? ---(end of broadcast)--- TIP 9: the planner will ignore your desire

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Randal L. Schwartz
Matthew == Matthew Terenzio [EMAIL PROTECTED] writes: Matthew On May 3, 2005, at 8:30 PM, Randal L. Schwartz wrote: Is there a simple way with PostgreSQL to assign relative ranks to the result of a query ORDER BY? Matthew What do you mean by ranks? If I order a query by ascending age, the

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Lyubomir Petrov
Randal L. Schwartz wrote: I'm probably asking a FAQ, but a few google searches didn't seem to point me in the right place. Is there a simple way with PostgreSQL to assign relative ranks to the result of a query ORDER BY? That is, I want to either have a view that cheaply assigns the ranks, or be

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Sean Davis
How about something like: CREATE TABLE testrank ( id int, value varchar ); insert into testrank values(17,'way'); insert into testrank values(27,'foo'); insert into testrank values(278,'bar'); insert into testrank values(1,'abd'); insert into testrank values(2,'def'); CREATE OR REPLACE FUNCTION

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Joshua D. Drake
If I order a query by ascending age, the youngest person gets rank 1, the second youngest gets rank 2, the third youngest gets rank 3, and if the fourth and fifth tie, they both get 4, and the next one gets 6. You know, rank? :) You could use a plPerl function. Sincerely, Joshua D. Drake

Re: [GENERAL] getting the ranks of items

2005-05-03 Thread Mike Nolan
If I order a query by ascending age, the youngest person gets rank 1, the second youngest gets rank 2, the third youngest gets rank 3, and if the fourth and fifth tie, they both get 4, and the next one gets 6. You know, rank? :) You could use a plPerl function. To do it with ties,

Re: [GENERAL] Favorable Postgresql write up

2005-05-03 Thread Tom Lane
Dann Corbit [EMAIL PROTECTED] writes: http://www.suite101.com/article.cfm/oracle/115560 Well, he does say that this is only a comparison of the install experience ... but I read that as the win32 installer guys get a gold star. Congrats guys! regards, tom lane

Re: [GENERAL] [INTERFACES] calculated identity field in views, again...

2005-05-03 Thread Keith Worthington
Zlatko Matic wrote: I asked this question several weeks ago, but nobody proposed a solution, so I am repeating the same question again... I have an MS Access front-end for a database on PostgreSQL. I could use pass-through queries as record sources for reports and it works fine... Unfortunately,

Re: [GENERAL] Date addition/subtraction

2005-05-03 Thread Dinesh Pandey
Select current_timestamp - '30 day'::interval Select current_timestamp - '1 hour'::interval Thanks Dinesh Pandey -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Craig Bryden Sent: Tuesday, May 03, 2005 11:02 PM To: pgsql Subject: [GENERAL] Date

[GENERAL] Postgre 8.0 for Linux i586

2005-05-03 Thread Lipy Reis
Hello everyone, Anyone can help me find out RPM packs for Postgre 8.0 , i need it for Linux "i586" I just find RPMs for version i686 :( Anybody more luck than me? thanks in advance Atenciosamente, Lipy Reis Analista de Suporte === quando é hora

Re: [GENERAL] [INTERFACES] calculated identity field in views, again...

2005-05-03 Thread Greg Stark
Zlatko Matic [EMAIL PROTECTED] writes: In regular tables, I use bigserial field, but how can I create calculated bigserial column in a view ? You would have to create a sequence and reference it with nextval('sequencename') in your view. But I doubt very much that it will do anything useful.