[GENERAL] Record order change after update

2004-06-09 Thread Josué Maldonado
Hello list, After update a column on a table, that row goes to the top when I do a select from that table without any order, is that the expected behavior in postgresql? is there a way to prevent it? Thanks in advance. Josué Maldonado ---(end of broadcast)---

Re: [GENERAL] pg_dump and schema namespace notes

2004-06-09 Thread Tom Lane
Bruce Momjian <[EMAIL PROTECTED]> writes: > Any comments on this? It seems like a valid confusion. What solutions > are there? I think we're stuck. We can't avoid the fact that the SQL syntax uses the keyword SCHEMA to mean a namespace. We also can't avoid the very common usage of "database sc

Re: [GENERAL] Postgresql vs. aggregates

2004-06-09 Thread Tom Lane
[EMAIL PROTECTED] writes: > I'd find all this much easier to reason about if I understood how > the versions of a row are organized and accessed. How does postgresql > locate the correct version of a row? It doesn't, particularly. A seqscan will of course visit all the versions of a row, and an i

Re: [GENERAL] tablespaces and schemas

2004-06-09 Thread Tom Lane
Andrew Rawnsley <[EMAIL PROTECTED]> writes: > Schemas are users in Oracle, but the net effect to the SQL author is > the same. 'SELECT * FROM SERVICES.USERS' is the same, just that > 'SERVICES' is a user in oracle (although referred to as a schema, and > you have to do a 'CREATE SCHEMA AUTHORIZA

Re: [GENERAL] How to drop sequence?

2004-06-09 Thread scott.marlowe
On Mon, 1 Mar 2004, Ron St-Pierre wrote: > You're right I am getting the same results. I created the same table with: >create table category ( > category_id serial not null primary key, > category_name character varying(100) not null >); > > alter table category alter column

Re: [GENERAL] Data in table changed?

2004-06-09 Thread Karl O. Pinc
On 2004.03.02 08:04 Thomas Holmgren wrote: I need an efficient way of determining if data in a table has been changed (either updated, deleted or inserted). Can this be achieved without scanning the tables using expensive SQL? (my tables are _big_!) Is there some way to get a "time for last update

Re: [GENERAL] Setting up Postgresql on Linux

2004-06-09 Thread Paul Thomas
On 01/03/2004 23:22 Phil Campaigne wrote: Hello, I originally installed postgresql as root user and now I am setting up a development environment with cvs and a java ide and tomcat. I have everything with the exception of postgresql integreted using a non-root user. THe process I am using is to

Re: [GENERAL] pg_dump and schema namespace notes

2004-06-09 Thread Joshua D. Drake
Bruce Momjian wrote: Any comments on this? It seems like a valid confusion. What solutions are there? A common interchangeable title for schema is namespace and in actuality we use \dn in psql (\dnamespace) to list them. Perhaps we should change the name? I believe Oracle uses the ter

Re: [GENERAL] sql query to get field types

2004-06-09 Thread scott.marlowe
On Mon, 1 Mar 2004, Alexander Cohen wrote: > What sql query can i use to get all relative data to the types of > fields that a table contains? select column_name,data_type from information_schema.columns where table_name='test'; works in 7.4 ---(end of broadcast)-

Re: [GENERAL] Solaris ecpg program doesn't work - pulling my hair

2004-06-09 Thread Bruce Momjian
Jan, is this fixed in current CVS and 7.4.X CVS? --- Jan Wieck wrote: > [EMAIL PROTECTED] wrote: > > >> We had this in the past. I'm not sure and would have to search the > >> archives but I vaguely remember that this has b

Re: [GENERAL] pg_dump and schema namespace notes

2004-06-09 Thread Bruce Momjian
Any comments on this? It seems like a valid confusion. What solutions are there? --- Rory Campbell-Lange wrote: > I think this is a suggestion/comment! > > pg_dump man page: > > --schema-only > Dump o

Re: [GENERAL] SERIAL type - auto-increment grouped by other field

2004-06-09 Thread Paulovič Michal
:(( sorry At server ther is istalled pgsql 7.1.2 but creatlang works from 7.2.X and upper version :( do you have any other ideas?? elein wrote: You just need to define 'plpgsql' as a language in your database. At the shell, to define the language use: createlang 'plpgsql' ; After you do

Re: [GENERAL] md5 calls

2004-06-09 Thread scott.marlowe
On Sat, 21 Feb 2004, Simon Windsor wrote: > Hi > > > > I am using the standard debian testing release of postgres(7.3.4) and was > wondering how to produce and md5 string. > > > > I had thought > > > > Select md5('joe'); > > > > Would be sufficient? Doesn't that work? It works f

[GENERAL] pg_dumpall and large objects

2004-06-09 Thread zhicheng wang
hi, the man page says pg_dump cannot dump "large objects". can some one help me on what does this realy mean? how large is large? if we have some icons can we still use pg_dumpall to backup the db? also large objects do not include large strings, right? thanks cheng = Best wishes Z C Wan

Re: [GENERAL] A simple question (under pressure :-))....

2004-06-09 Thread Csaba Nagy
Hi John, Short answer: you can do cross-schema queries, you can't (easily) do cross database queries. Check out this: http://www.postgresql.org/docs/7.4/static/ddl.html , the schema section: http://www.postgresql.org/docs/7.4/static/ddl-schemas.html I'm not sure when schemas were introduced, but

Re: [GENERAL] count(1) return 0?

2004-06-09 Thread Zak McGregor
On Mon, 01 Mar 2004 13:12:12 +1100 Klint Gore <[EMAIL PROTECTED]> wrote: > The counting and grouping is done after the where clause is applied. > > since player iplaybadly (who was 1200's opponent) didnt win any, he/she > is not included in the result set to be grouped and counted. You need > to

[GENERAL] A simple question (under pressure :-))....

2004-06-09 Thread John Wells
Guys, I have approx. 8 hours to finish a deadline, so I can no longer spend time searching google...haven't found the answer yet. In PG, is there not a way to select amongst databases? In other words, if I have one schema called sch1 and another called sch2, and I'm connected to sch2, could

Re: [GENERAL] count(1) return 0?

2004-06-09 Thread Klint Gore
On Mon, 1 Mar 2004 02:14:56 +0200, Zak McGregor <[EMAIL PROTECTED]> wrote: > to return a 0 value instead of absolutely nothing if no rows match fixture=4916 > and winner=away? I get absolutely no results at all. > > any ideas please? dont group by winner. it's not returned in the statement so it