I don't know of a single query that will satisfy your needs (not saying
that there isn't one...) - you might try in whatever language you are using:
select users
for each user
select questions
for each question
select answers
end loop
end loop
This is
Hello there!
I've just install PostgreSQL 7.1.1 and noticed that timestamp have changed
in this release.
for example:
CREATE TABLE "foo" ( test timestamp );
if you "\d foo" you will notice the column test is not a timestamp, it's a
"timestamp with time zone"
In all the docs I've read (7.2 and
Hello everybody!
I have postgreslq 7.1 running on a 1 Ghz Intel Box, with 2 H.D. SCSI 1
RPM connected in a DPT SCSI card with 40 MB cache RAM, 256 Mb RAM and a Intel
Mainboard.
I have a 2.5 million rows database, and when I do a search using "like" it
tooks about a minute to give me a res
Users:
--
CREATE TABLE "users" (
"user_id" int8 DEFAULT nextval('user_id_seq'::text) NOT NULL,
"group_id" int4 NOT NULL,
"user_agent" varchar(200) NOT NULL,
"ip_address" varchar(20) NOT NULL,
CONSTRAINT "users_pkey" PRIMARY KEY ("user_id")
);
CREATE UNIQUE INDEX
Please post the sql statement that creates these tables.
-r
At 12:15 AM 5/16/01 -0400, Alex Hochberger wrote:
>To any SQL wizards out there,
>
>I have finally exhausted my SQL knowledge.
>
>I have 3 tables that I need to do a fancy join on...
>
>1 stores the users
>1 stores the questions
>1 sto
To any SQL wizards out there,
I have finally exhausted my SQL knowledge.
I have 3 tables that I need to do a fancy join on...
1 stores the users
1 stores the questions
1 stores the user's answers to the questions (based on foreign keys to the
answers table)
I would like to create a result with
Hi
Just a little miss I think John did.
With PHP you dont have to start a new connection everytime.
You can use the good ole pg_pconnect. It is a persistant connection to
the server.
The server keeps a pool of connections open for fast access.
There has been some problems with this so I recomme
I need to write a C program that will require libpq and ecpg. I'm hoping
someone can point me to an example. I'm not a C programmer, so I need a crash
course or jump start. The original program has existed as an Informix 4GL
program for many years. We have lately been converting our applica
Hi
I like WinSQL LITE.
There you get all messages.
You can get it from:
http://www.indus-soft.com/
It uses ODBC to connect.
Best regards
Per-Olof Pettersson
>> Original Message <<
On 2001-05-14, 16:33:08, [EMAIL PROTECTED] ("Gregory Wood") wrote
regarding Re:
Hi
As you might have figured out Postgresql is merely a server. (And some
client code too).
You have to find programs that do the input-forms, reports
I tend to use Apache and PHP for these tasks.
It works like ASP for Windows (but better in my opinion).
PostgreSQL is not like eg Access fo
Hi,
Let me get this straight...;-)
The IDE server is running Linux 2.0.36 with PHP and Apache.
The SCSI server is running with PostgreSQL 7.0.3 ??
And you're talking about speed in inserts?
Try to use a kernel after 2.2.16 or the current 2.4.4 series, they
handle memory management rather wel
Sorry bout that. Actually query does 'is null', I made a mistake in
my post.
-alex
On Tue, 15 May 2001, Per-Olof Pettersson wrote:
> Hi Alex
>
> I have no idea if it is a known issue.
> Though "field=null" is not allowed in standard SQL.
> The correct statement should be "select from xx where
Hi Alex
I have no idea if it is a known issue.
Though "field=null" is not allowed in standard SQL.
The correct statement should be "select from xx where field IS NULL;".
Perhaps it will be handled better (or not).
Best regards
Per-Olof Pettersson
>> Original Message <<<
I found this same problem. It's the "group by" that is the killer.
PostgreSQL's implementation of "group by" requires a sort of the entire
table on the group by criteria, even if there is an index on the group
by column. It's to bad this caused us not to be able to use Postgresql
for a project.
Bill McGonigle <[EMAIL PROTECTED]> writes:
> CREATE TABLE Delivery_Methods (
> delivery_method_id INTEGER NOT NULL UNIQUE,
> delivery_method VARCHAR(50) NOT NULL UNIQUE
> );
If you want to use names like that, you'd be well advised to increase
NAMEDATALEN. See the archives.
When doing CREATE TABLE (piped in from a file with my table definitions) I'
m getting errors that I think are related to the automatic index creation
on my UNIQUE columns:
ERROR: Relation 'phone_number_types' does not exist
ERROR: Cannot create index: 'phone_number__phone_number__key' already
I have a bit of a problem:
'select from xx where field=null' will always result in seq scan even when
there's a [btree] index on the field.
Is this a known issue?
-alex
---(end of broadcast)---
TIP 6: Have you searched our list archives?
http
If your query is not using the correct index files, you're query will run
slowly. Please post the output from EXPLAIN.
-r
At 09:00 PM 5/15/01 +0200, snpe wrote:
>On Tuesday 15 May 2001 17:28, Stephan Szabo wrote:
> > On Tue, 15 May 2001, snpe wrote:
> > > Table e_kalkn have 4668 rows and e_ka
"Gregory Wood" <[EMAIL PROTECTED]> writes:
> How are clients that drop NOTICEs broken though?
Because you want to be able to see NOTICEs ... at least if you are doing
SQL development. (I don't object to optionally dropping them, but I
think the default should be to show 'em, at least in interact
snpe <[EMAIL PROTECTED]> writes:
> select roba,sum(izn)
> from e_kalkn k,e_kalkns ks
> where k.id=ks.id
> group by roba
> order by roba
>
> is 2.5 times faster on one commercial database
That other DBMS is probably implementing the GROUP BY + aggregate
using a hash table to compute all the aggre
On Tuesday 15 May 2001 17:28, Stephan Szabo wrote:
> On Tue, 15 May 2001, snpe wrote:
> > Table e_kalkn have 4668 rows and e_kalkns 101170 rows.
> >
> > Query :
> >
> > select roba,sum(izn)
> > from e_kalkn k,e_kalkns ks
> > where k.id=ks.id
> > group by roba
> > order by roba
> >
> > is 2.5 t
On Tuesday 15 May 2001 17:28, Stephan Szabo wrote:
> On Tue, 15 May 2001, snpe wrote:
> > Table e_kalkn have 4668 rows and e_kalkns 101170 rows.
> >
> > Query :
> >
> > select roba,sum(izn)
> > from e_kalkn k,e_kalkns ks
> > where k.id=ks.id
> > group by roba
> > order by roba
> >
> > is 2.5 t
> > ... So anytime I see something that requires some sort of shell access
> > I don't like it. EXPLAIN is one of those things.
>
> Huh? EXPLAIN doesn't require shell access ... it merely requires a
> client that doesn't drop NOTICE messages into the bit bucket.
>
> Clients that drop NOTICEs ar
"Gregory Wood" <[EMAIL PROTECTED]> writes:
> ... So anytime I see something that requires some sort of shell access
> I don't like it. EXPLAIN is one of those things.
Huh? EXPLAIN doesn't require shell access ... it merely requires a
client that doesn't drop NOTICE messages into the bit bucket.
> Then, I just have a telnet/ssh/etc session on the server running :
> Would this be useful to you?
Seem just as easy to run psql to me. In fact a bit easier as I don't have to
switch back and forth between windows.
I guess it goes back to the days when I was first learning SQL on a MySQL
web d
Hi Greg,
Instead of using psql to get the NOTICES, when I program in PL/pgSQL, I
start the database with -d 2 (debug level of 2) and this forces the
NOTICES into the PostgreSQL log file.
Then, I just have a telnet/ssh/etc session on the server running :
tail -f postgresql.log
So I constantly h
"Thomas F. O'Connell" <[EMAIL PROTECTED]> writes:
> is there any way to preserve a lock on a table that gets dropped?
> i have a situation where it would be nice to have a select wait on a
> lock on a table that gets dropped but almost immediately recreated, but,
> at the moment, the select gene
On Tue, 15 May 2001, snpe wrote:
> Table e_kalkn have 4668 rows and e_kalkns 101170 rows.
>
> Query :
>
> select roba,sum(izn)
> from e_kalkn k,e_kalkns ks
> where k.id=ks.id
> group by roba
> order by roba
>
> is 2.5 times faster on one commercial database (there are tests on Internet
>
is there any way to preserve a lock on a table that gets dropped?
i have a situation where it would be nice to have a select wait on a
lock on a table that gets dropped but almost immediately recreated, but,
at the moment, the select generates an error as soon as the table is
dropped if the tw
Hi !
I have 2 servers running apache, php and PG 7.0.3 running under Linux
The first one uses IDE disks, and everything run fine and fast. (uses linux
2.0.36)
The second one uses SCSI drives with a Adaptec adapter. (uses Linux 2.2.14)
My problem is that acces to the DB on this server are very
Renaud Thonnart <[EMAIL PROTECTED]> writes:
> We are starting to run PGSQL V7.1 on Solaris 7. It seems to work but
> psql binary always ends with a SEGV.
Paul McGarry just reported in pgsql-bugs that updating to gcc 2.95.3
made a similar problem go away for him.
regards,
Alejandro Fernandez <[EMAIL PROTECTED]> writes:
> I suspected that the access guidelines broke the SQL standard! Thanks
> for the information. Is there a standards compliant naming convention I
> can use as an alternative in future?
You can use mixed case if you want --- you just have to be absol
Hello,
I have this query in my .c program:
if (PQsendQuery(srcmain, "select
userid,uid,clear_passwd,www_home,date_part('epoch',dt_block),date_part('epoch',dt_cancel)
from www where uid=parent_uid and dt_modify > dt_export")) {
while ((srcmres = PQgetResult(srcmain)) != NULL) {
wel
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