Re: [GENERAL] table size/record limit

2004-10-22 Thread Gaetano Mendola
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dennis Gearon wrote: | Gaetano Mendola wrote: | | Dennis Gearon wrote: | | I am designing something that may be the size of yahoo, google, ebay, | etc. | | Just ONE many to many table could possibly have the following | characteristics: | |

Re: [GENERAL] Is it possible to remove the public schema?

2004-10-22 Thread Henry Combrinck
No problem at all. It's easy to automate the table linking process. I have a table in access that holds - among other things - the internal and external name of my linked tables, in which database, schema and server they locate. [snip] Thank you very much for the information. Regards Henry

Re: [GENERAL] Information about storge engine in PostgreSQL

2004-10-22 Thread nd02tsk
I really appreciate these type of high-quality anwsers, thank you. Tim On 10/21/2004 10:27 AM, [EMAIL PROTECTED] wrote: Hello MySQL has information about several storage engines. MEMORY to handle temporary tables, InnoDB to handle transactions and which also can split its table data over

[GENERAL] FKs and deadlocks

2004-10-22 Thread Philippe Lang
Hello, As the amount of simultaneous users of my database grows (25 users sometimes, PGSQL 7.4.5), deadlocks are unfortunately more and more frequent. I guess this is due to the FKs problem with Postgresql. I have tried to correct that by adding a SET CONSTRAINTS ALL DEFERRED in every trigger

[GENERAL] PostgreSQL-related job posting

2004-10-22 Thread John Wells
Guys, I have an opening currently for the following position. If interested, email me at john.wells__replace_this_with_at__timco.aero. Although relo is stated as not covered, I may be able to fight for that given a very qualified candidate. Company:TIMCO Aviation Services Location:

Re: [GENERAL] Row versioning

2004-10-22 Thread Ruediger Herrmann
thanks for your replay. This approach sounds very comfy. As I read the documentation this is kind of a transaction sequence or better a unique transaction id. Am I right with this? So every row inserted or updated within the same transaction is tagged with the same xmin. Is there any information

Re: [GENERAL] FKs and deadlocks

2004-10-22 Thread Stephan Szabo
On Fri, 22 Oct 2004, Philippe Lang wrote: I have tried to correct that by adding a SET CONSTRAINTS ALL DEFERRED in every trigger and function, hoping it would solve my problem. Maybe it helped, but it did not solve anything. Note that set constraints all deferred does nothing unless you made

Re: [GENERAL] table size/record limit

2004-10-22 Thread Dennis Gearon
Great Idea! When I get that far, I will try it. Gaetano Mendola wrote: snip For partion in some way I don't mean only split it in more tables. You can use some available tools in postgres and continue to see this table as one but implemented behind the scenes with more tables. One usefull and

Re: [GENERAL] FKs and deadlocks

2004-10-22 Thread Tom Lane
Stephan Szabo [EMAIL PROTECTED] writes: On Fri, 22 Oct 2004, Philippe Lang wrote: I don't know if anyone has a better idea, but I would like to try taking away some FKs in my schema. My problem is that I really don't know which one to delete. There are over 40 tables. Are there rules to do

Re: [GENERAL] Row versioning

2004-10-22 Thread Tom Lane
Ruediger Herrmann [EMAIL PROTECTED] writes: Is there any information wether this approach is future proof? [ shrug... ] As much as anything that's not specified by the SQL standard is around here. We have no plans to replace MVCC, and xmin/xmax are a pretty fundamental part of that.

Re: [GENERAL] Two questions from the boss (SQL:2003 scalability)

2004-10-22 Thread Richard_D_Levine
I've worked with Oracle, Interbase, and Informix. PostgreSQL is the most SQL spec compliant of any of them, whether the spec is 89, 92, or 03. I have not worked with MySQL. Rick

Re: [GENERAL] correct example of a functional index usage?

2004-10-22 Thread Dennis Gearon
But it is possible to use multiple indexes on dates, and that is why the one at the bottom works, right? Would a single index get used for SELECT appointment FROM the_table WHERE 0 (date_mask date_range); Tom Lane wrote: No, an index can be used for one or the other. Since we don't yet have

Re: [GENERAL] Slony-I 1.0.4 Released

2004-10-22 Thread Jan Wieck
Sorry folks, the Slony-I team has produced a great product, but the project management (that's mostly me here) sucks big time! Shortly after giving Chris Browne green light for the 1.0.4 announcement we found a way to guard against bug #896. That being a really bad one I decided to stop the

Re: [GENERAL] correct example of a functional index usage?

2004-10-22 Thread Tom Lane
Dennis Gearon [EMAIL PROTECTED] writes: But it is possible to use multiple indexes on dates, and that is why the one at the bottom works, right? No, it is possible to use multiple conditions that are relevant to a single index. A range query like where x = lobound and x = hibound works very

[GENERAL] PlPERL and shared libraries on Suse

2004-10-22 Thread Eric E
Hi, I have an installation of Postgres 7.4.2 on SuSE 9.1. This version of SuSE comes with a binary for plperl and several other postgres procedural languages. All the others, including plpgsql install without a problem, but executing: createlang -u postgres plperl template1 produces the

Re: [Slony1-general] Re: [GENERAL] Slony-I 1.0.4 Released

2004-10-22 Thread Jan Wieck
On 10/22/2004 11:29 AM, Ed L. wrote: Wow. First, thanks again for all your efforts, Jan. Second, I'm disappointed to hear the slony author and lead developer is leaving the slony leadership. When is that going to happen? And what does that mean with respect to your future involvement in

Re: [GENERAL] PlPERL and shared libraries on Suse

2004-10-22 Thread Steve Atkins
On Fri, Oct 22, 2004 at 12:13:12PM -0400, Eric E wrote: Hi, I have an installation of Postgres 7.4.2 on SuSE 9.1. This version of SuSE comes with a binary for plperl and several other postgres procedural languages. All the others, including plpgsql install without a problem, but

Re: [GENERAL] PlPERL and shared libraries on Suse

2004-10-22 Thread Tom Lane
Eric E [EMAIL PROTECTED] writes: createlang: language installation failed: ERROR: could not load library /usr/lib/postgresql/plperl.so: libperl.so: cannot open shared object file: No such file or directory The file, however, is there: # ls -l /usr/lib/postgresql/plperl.so -rwxr-xr-x 1

[GENERAL] A Simple Question

2004-10-22 Thread Terry Lee Tucker
Greetings: While working with plpgsql and triggers, I've been using TG_NAME to display the trigger name at various points where I need to raise an exception and return a message. I was thinking how nice it would be if I could display the line number as well. Is there a special variable that

Re: [GENERAL] Two questions from the boss (SQL:2003 scalability)

2004-10-22 Thread Andrew Sullivan
On Thu, Oct 21, 2004 at 03:40:23PM -0400, John Wells wrote: Guys, My boss has been keeping himself busy reading MySQL marketing pubs, and came at me with a few questions this morning regarding PostgreSQL features (we're currently moving to PostgreSQL). I should point out that there's a

Re: [GENERAL] Two questions from the boss (SQL:2003 scalability)

2004-10-22 Thread Jan Wieck
On 10/21/2004 3:40 PM, John Wells wrote: Guys, My boss has been keeping himself busy reading MySQL marketing pubs, and came at me with a few questions this morning regarding PostgreSQL features (we're currently moving to PostgreSQL). While I don't think either are really that important for our

Re: [GENERAL] correct example of a functional index usage?

2004-10-22 Thread Dennis Gearon
The site seems to be down Tom. Tom Lane wrote: snip I don't see any indexable operator there at all. You might care to read http://developer.postgresql.org/docs/postgres/xindex.html which describes the behaviors Postgres indexes have. regards, tom lane

Re: [Slony1-general] Re: [GENERAL] Slony-I 1.0.4 Released

2004-10-22 Thread Ed L.
Wow. First, thanks again for all your efforts, Jan. Second, I'm disappointed to hear the slony author and lead developer is leaving the slony leadership. When is that going to happen? And what does that mean with respect to your future involvement in slony? Ed On Friday October 22 2004

[GENERAL] Problem with query plan

2004-10-22 Thread Cott Lang
I have come up with a simple query that runs horribly depending on the number of columns selected. select order_lines.* from orders, order_lines where orders.merchant_order_id = '11343445' and order_lines.order_id=orders.order_id; merchant_order_id is indexed. order_id is indexed. Tables are

Re: [GENERAL] PlPERL and shared libraries on Suse

2004-10-22 Thread Eric E
Hi Steve and Tom, Thanks for the tip, I was clearly not reading the error message closely enough. I copied libperl.so into /lib, and now everything works. Many thanks, Eric Steve Atkins wrote: On Fri, Oct 22, 2004 at 12:13:12PM -0400, Eric E wrote: Hi, I have an installation of Postgres 7.4.2

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Tom Lane
Cott Lang [EMAIL PROTECTED] writes: - Sort (cost=nan..nan rows=2023865 width=1257) What PG version is this? My recollection is we fixed such a thing quite some time ago ... regards, tom lane ---(end of broadcast)---

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Cott Lang
Oops, sorry - guess I left that out - 7.4.5. :) On Fri, 2004-10-22 at 12:28, Tom Lane wrote: Cott Lang [EMAIL PROTECTED] writes: - Sort (cost=nan..nan rows=2023865 width=1257) What PG version is this? My recollection is we fixed such a thing quite some time ago ...

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Tom Lane
Cott Lang [EMAIL PROTECTED] writes: Oops, sorry - guess I left that out - 7.4.5. :) Hmm ... I can't duplicate any misbehavior here. Are you using nondefault values for any planner parameters? (particularly sort_mem, random_page_cost, effective_cache_size) regards, tom

[GENERAL] unexpected field count in D message

2004-10-22 Thread Hicham G. Elmongui
what does this message mean? thanks, --h ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives.postgresql.org

Re: [GENERAL] delayed input

2004-10-22 Thread Hicham G. Elmongui
Well, it seems that i have to build the scan operator myself. Even the FunctionScan will make all the function calls and stores the result in a tuuplestore. So, all the delay will be occured only at the first function invocation. --h Alvaro Herrera [EMAIL PROTECTED] wrote in message

Re: [Slony1-general] Re: [GENERAL] Slony-I 1.0.4 Released

2004-10-22 Thread Andrew Sullivan
On Fri, Oct 22, 2004 at 09:36:10AM -0400, Jan Wieck wrote: wealth. And as long as Afilias is using Slony-I in production, Andrew Sullivan will not let me do whatever I want if there's a severe problem nobody else can fix. Or someone around here will, anyway. I might get hit by a wayward

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Cott Lang
shared_buffers = 16384 sort_mem = 8192 random_page_cost = 2 effective_cache_size = 3932160 On Fri, 2004-10-22 at 13:32, Tom Lane wrote: Cott Lang [EMAIL PROTECTED] writes: Oops, sorry - guess I left that out - 7.4.5. :) Hmm ... I can't duplicate any misbehavior here. Are you using

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Tom Lane
Cott Lang [EMAIL PROTECTED] writes: sort_mem = 8192 random_page_cost = 2 effective_cache_size = 3932160 effective_cache_size 30Gb ? Seems a tad high ;-) However, I set up a dummy test case on 7.4.5 and don't see any overflow. regression=# create table z1(f1 char(1253)); CREATE TABLE

[GENERAL] Slony-I 1.0.5 Released

2004-10-22 Thread Chris Browne
The Slony-I team http://slony.info/ is happy to present the 1.0.5 release. The release tarball is available for download http://developer.postgresql.org/~wieck/slony1/download/slony1-1.0.5.tar.gz See the HISTORY-1.0 file for a detailed list of changes. -- let name=cbbrowne and

Re: [GENERAL] Slony-I 1.0.4 Released

2004-10-22 Thread Gaetano Mendola
Christopher Browne wrote: Oops! Gaetano Mendola [EMAIL PROTECTED] was seen spray-painting on a wall: Chris Browne wrote: The Slony-I team is proud to present the 1.0.4 release of the most advanced replication solution for the most advanced Open Source Database in the world. The release

Re: [GENERAL] Two questions from the boss (SQL:2003 scalability)

2004-10-22 Thread Kevin Barnard
On Fri, 22 Oct 2004 14:18:52 -0400, Jan Wieck [EMAIL PROTECTED] wrote: That multiple hosts sounds that he came across the NDB cluster stuff that will become available in MySQL someday. Be aware that this new table handler will to my knowledge NOT support foreign keys. So the enforcement of

Re: [GENERAL] unexpected field count in D message

2004-10-22 Thread Tom Lane
Hicham G. Elmongui [EMAIL PROTECTED] writes: what does this message mean? libpq is unhappy because the DataRow ('D') message had a field count different from the preceding RowDescription ('T') message. How did you manage that? regards, tom lane

[GENERAL] ia64 hostname lookup problem

2004-10-22 Thread Ed L.
I've installed both 32-bit and 64-bit executables of 7.4.5 on ia64 running HP-UX B.11.23. The 32-bit version works fine and accepts both local and remote connections. The 64-bit version, however, rejects any/all attempts to connect with the following message: FATAL: no pg_hba.conf entry

Re: [GENERAL] ia64 hostname lookup problem

2004-10-22 Thread Tom Lane
Ed L. [EMAIL PROTECTED] writes: I've installed both 32-bit and 64-bit executables of 7.4.5 on ia64 running HP-UX B.11.23. The 32-bit version works fine and accepts both local and remote connections. The 64-bit version, however, rejects any/all attempts to connect with the following

Re: [GENERAL] correct example of a functional index usage?

2004-10-22 Thread Gaetano Mendola
Tom Lane wrote: Since we don't yet have bitmap combining of indexes... ^^^ Are you trying to tell us something ? :-) Regards Gaetano Mendola ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]

Re: [GENERAL] index not used?

2004-10-22 Thread Gaetano Mendola
Scott Marlowe wrote: On Wed, 2004-10-20 at 08:06, Dan Pelleg wrote: I'm trying to access a table with about 120M rows. It's a vertical version of a table with 360 or so columns. The new columns are: original item col, original item row, and the value. I created an index: CREATE INDEX idx on table

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Cott Lang
On Fri, 2004-10-22 at 14:19, Tom Lane wrote: Cott Lang [EMAIL PROTECTED] writes: sort_mem = 8192 random_page_cost = 2 effective_cache_size = 3932160 effective_cache_size 30Gb ? Seems a tad high ;-) It's a 32GB machine with nothing else running on it except PG, buffers hover around 31GB

[GENERAL] combining two queries?

2004-10-22 Thread Mark Harrison
How can I combine these two queries? # select viewerid,count(*) from viewer_movies group by viewerid order by viewerid; viewerid | count --+ 22964835 | 3055 22964836 | 1291 22964837 | 3105 22964838 |199 planb=# select name from xenons where id = 23500637; name

Re: [GENERAL] Problem with query plan

2004-10-22 Thread Tom Lane
Cott Lang [EMAIL PROTECTED] writes: Fiddling with the above values, only setting sort_mem absurdly large easily causes NAN. Ah. I see an overflow case for sort_mem exceeding 1Gb; that's probably what you tickled. I've fixed this in HEAD, but it doesn't seem worth back-patching. If you care,

Re: [GENERAL] combining two queries?

2004-10-22 Thread Duane Lee - EGOVX
Title: RE: [GENERAL] combining two queries? Try select a.name,count(*) from xenons as a, viewer_movies as b where a.id = b.viewerid group by a.name order by a.name; -Original Message- From: Mark Harrison [mailto:[EMAIL PROTECTED]] Sent: Friday, October 22, 2004 4:55 PM To: [EMAIL

Re: [GENERAL] ia64 hostname lookup problem

2004-10-22 Thread Ed L.
On Friday October 22 2004 5:11, Tom Lane wrote: Ed L. [EMAIL PROTECTED] writes: I've installed both 32-bit and 64-bit executables of 7.4.5 on ia64 running HP-UX B.11.23. The 32-bit version works fine and accepts both local and remote connections. The 64-bit version, however, rejects