Re: [GENERAL] installing DBD::Pg without installing postgres
On Mon, 23 Apr 2001 16:30:43 -0400, Fran Fabrizio alluded: Hello, It seems that there should be a way to install the DBD Pg module without having to install postgres on the local machine. I tried installing just the libs rpm, but that didn't seem to do the trick. I've done some usenet and mailing list archive searches, but all the info I'm turning up appears geared towards the assumption that you also want postgres installed locally. Am I looking in the wrong places? There really isn't any reason to do so. If you're looking to have many machines connect to a single PostgreSQL database, take a look at DBI::Proxy. It is designed to allow you to connect to databases that have libraries linked into the DBD::* executables without needing the libraries on the local box (this is very nice for avoiding the Oracle client library installs as well). Jeff ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
Re: [GENERAL] Var substitution in SELECT statements
On Mon, Apr 23, 2001 at 09:41:51PM -0400, Randall Perry wrote:
on 4/23/01 9:20 PM, Randall Perry at [EMAIL PROTECTED] wrote:
This works:
$res = $conn-exec(select cust, contact, user_name, email from $t where
user_name = a1a);
This doesn't:
$c = a1a;
$res = $conn-exec(select cust, contact, user_name, email from $t where
user_name = $c);
and returns the error:
Attribute 'a1a' not found
How do you do var substitution with the Pg module in Perl?
Whoops! Needed to quote the var as so (for $c above):
$c = \'$c\';
Works now.
also try
$sth = $dbh-prepare(select fields from tbl where f1 = ? and f2 = ?)
$sth-execute($val1,$val2);
while ($ref = $sth-fetchrow_hashref()) {
...
}
$sth-finish();
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Re: [GENERAL] Re: BETWEEN clause
On Tue, Apr 24, 2001 at 12:07:41AM -0400, Joel Burton wrote: On Mon, 23 Apr 2001, Paul Tomblin wrote: Is the BETWEEN clause inclusive or exclusive? ie if I say WHERE latitude BETWEEN 45 and 55, will I get examples where the latitude equals 45 or not? Also, is latitude BETWEEN 45 and 55 any more efficient than latitude = 45 AND latitude = 55, or is it just a stylistic thing? yes, yes, and no: select 'exclusive' where 2 between 1 and 3; ?column? -- inclusive test=# select 'inclusive' where 1 between 1 and 3; ?column? -- inclusive test=# create view its_really_the_same_thing as select true where 1 between 1 and 3; test=# \d its_really_the_same_thing ... View definition: SELECT 't'::bool WHERE ((1 = 1) AND (1 = 3)); HTH, -- Joel Burton [EMAIL PROTECTED] Director of Information Systems, Support Center of Washington just wanted to say -- BEAUTIFULLY executed reply. not only did you answer the query succinctly and completely, you showed, quite clearly, how to find out such answers. teach a man to fish... delightful! -- don't visit this page. it's bad for you. take my expert word for it. http://www.salon.com/people/col/pagl/2001/03/21/spring/index1.html [EMAIL PROTECTED] http://sourceforge.net/projects/newbiedoc -- we need your brain! http://www.dontUthink.com/ -- your brain needs us! ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
Re: [GENERAL] Re: BETWEEN clause
Quoting will trillich ([EMAIL PROTECTED]): test=# create view its_really_the_same_thing as select true where 1 between 1 and 3; test=# \d its_really_the_same_thing ... View definition: SELECT 't'::bool WHERE ((1 = 1) AND (1 = 3)); HTH, -- Joel Burton [EMAIL PROTECTED] Director of Information Systems, Support Center of Washington just wanted to say -- BEAUTIFULLY executed reply. not only did you answer the query succinctly and completely, you showed, quite clearly, how to find out such answers. I was impressed as well. I didn't know you could use \d to find the definition of views like that. -- Paul Tomblin [EMAIL PROTECTED], not speaking for anybody Nobody can be told what the dominatrix is, they have to see it for themselves ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl
[GENERAL] Strange locale goings on
Hello, I am querying my French language data via JDBC. Accented caracters do not get returned. When I query via Webmin (Perl???) accents are just fine. Quid??? Cheers Tony Grant -- RedHat Linux on Sony Vaio C1XD/S http://www.animaproductions.com/linux2.html ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
[GENERAL] Converting queries to upper case
Another question I am submitting my JDBC queries via HTML form. Is it best to convert the query to UPPER CASE with java script in the form when submitting it? Cheers Tony Grant -- RedHat Linux on Sony Vaio C1XD/S http://www.animaproductions.com/linux2.html ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
[GENERAL] Re: Re: BETWEEN clause
On Tue, 24 Apr 2001, Paul Tomblin wrote: Quoting will trillich ([EMAIL PROTECTED]): test=# create view its_really_the_same_thing as select true where 1 between 1 and 3; test=# \d its_really_the_same_thing ... View definition: SELECT 't'::bool WHERE ((1 = 1) AND (1 = 3)); HTH, -- Joel Burton [EMAIL PROTECTED] Director of Information Systems, Support Center of Washington just wanted to say -- BEAUTIFULLY executed reply. not only did you answer the query succinctly and completely, you showed, quite clearly, how to find out such answers. I was impressed as well. I didn't know you could use \d to find the definition of views like that. Yep. Now what I'd love is \recreate foobar which would execute DROP VIEW foobar; CREATE VIEW foobar AS ... So that I could conveniently up-arrow in psql's readline, and edit and re-create the view. Woud save me a hundred vi fumblings or X-mouse cutting and pastings a week. ... who needs GUIs? ;-) -- Joel Burton [EMAIL PROTECTED] Director of Information Systems, Support Center of Washington ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl
[GENERAL] Performance: sql functions v. plpgsql v. plperl
Last night, I was doing some amateurish benchmarking and found that, contrary to my (admittedly uninformed) expectation, sql functions seem *slower* than plsql functions. Even for very simple things, like 'SELECT CASE WHEN $1 RETURN $1 ELSE $2 END' were slower than the plsql begin if $1 then return $1; else return $2; end if; end; by about 15%. However, my benchmarking was the type usually dreaded: a single person, playing around in a scripting language, running the test one a time seqeuentially, and just timing the results. Is there any real data on this? I also tried plperl v plpgsql, and found that, probably not surprisingly, there was about a 15% advantage to plpgsql. Of course, many things can be written much simpler in perl (such as string handling functions). Even so, though, a find-the-first-letter-of-all-significant-words function written about 1.5 years ago in plpgsql (a pretty awful, nested, letter-by-letter parser) was only about twice as slow as the perl split() replacement. Looks like our little plpgsql is quite a speed demon. (as always, IANAPB [ I am not a professional benchmarker ], YMMV) -- Joel Burton [EMAIL PROTECTED] Director of Information Systems, Support Center of Washington ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
[GENERAL] indices are crashed after installation of rpm
hello all,
we are running PostgreSQL 7.0.2 on Solaris 2.6,/x86 compiled by gcc 2.8.1.
For installation Postgres on 70 Solaris-2.6 server we built packages
(SVR4-style).
The first time we installed Postgres everything was ok. But after a new
installation of the package ( - same Postgres version! - just the starting
script changed) all indices where damaged (this is reproducible).
In the installation script the postmaster is stopped and started. Is it
possible the stopping and starting is crashing the indices,
because sometimes just stopping and starting the postmaster ist crashing the
indices (not reproducible)?
Has someone any idea what's wrong, do you need more informations?
greetings,
Peter
this ist the starting/stopping script S99postgres:
#!/bin/sh
umask 077
killdaemon()
{
PIDs=`ps -u postgres | sed '/PID/d;s/ \{1,\}/ /g' | cut -d -f2 |
sort -rn`
[ -n $PIDs ] kill $PIDs
[ -f /tmp/.s.PGSQL.5432 ] rm -f /tmp/.s.PGSQL.5432
echo postmaster stopped
}
startdaemon()
{
su postgres -c /export/home/postgres/start_postgres
echo postmaster started
su postgres -c /export/home/postgres/chk_user \
su postgres -c /export/home/postgres/create_user
}
case $1 in
'start')
startdaemon
;;
'stop')
killdaemon
;;
'restart')
killdaemon
startdaemon
;;
*)
echo Usage: $0 { start | stop | restart }
;;
esac
exit 0
++
and start_postgres:
PATH=/opt/local/bin:$PATH:/opt/local/DWH/bin:.
LD_LIBRARY_PATH=/usr/openwin/lib:/usr/dt/lib:/opt/local/DWH/lib
export PATH LD_LIBRARY_PATH
PGLIB=/DWH/lib
PGDATA=$HOME/data
export PGLIB PGDATA
postmaster -i -D /export/home/postgres/data /tmp/postgres.log
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RE: [GENERAL] pg_dump failure: handler procedure for language plpgsql not foun d
Tom, Absolutely right! I suppose I could have figured that out if I had spent three days looking at it :-) I didn't find anything in the docs about assigning a sysid to a new user, so I just did a createuser and an UPDATE to pg_shadow to reset the sysid. If that is likely to cause a problem, please let me know. In any case, pg_dump is now working for me. Thank you once again for your valuable help. Regards -Original Message- From: Tom Lane [SMTP:[EMAIL PROTECTED]] Sent: Monday, April 23, 2001 6:23 PM To: Jeff Eckermann Cc: '[EMAIL PROTECTED]' Subject: Re: [GENERAL] pg_dump failure: handler procedure for language plpgsql not foun d Jeff Eckermann [EMAIL PROTECTED] writes: I am attempting to do a pg_dump, preparing to upgrade to 7.1. I have attempted a pg_dumpall, as well as pg_dump for various individual databases, and each fails with the message dumpProcLangs(): handler procedure for language plpgsql not found Hmm, does plpgsql_call_handler's proowner appear in pg_shadow? If not, add a user with the correct sysid... regards, tom lane ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl
[GENERAL] IBM to buy Informix
IBM to buy Informix: http://news.cnet.com/news/0-1003-200-5705678.html?tag=st.it.9500.lthd -- Bruce Momjian| http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup.| Drexel Hill, Pennsylvania 19026 ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
[GENERAL] Problem with postgreSQL (number of backends)
Hi, i have problems with PostgreSQL 7.0.3 on a RedHat 6.2 System. Very often postgresql post me the following warning and error message. Warning: Unable to connect to PostgreSQL server: Sorry, too many clients already in /home/server/... PostgreSQL said: Unable to connect to server It seems to be a problem with buffers and backends. So i have restart the postmaster with the parameters /usr/bin/postmaster -N 256 -B 512 ... (i put these parameters in the file postmaster.opts in the postgresql data folder).But it seems to have no effect. The problem still exist. I need help thx Konstantin ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
