Обсуждение: Controlling psql output
Hi:
Using a single psql command to generate stdout in linux that will be redirected to a file. Many rows with 1 column are returned. I want no header, no footer, no blank lines at the top or bottom, no initial space before each record. This is what I’m trying...
psql –P tuples_only=on,footer=off,border=0 mydb
This gets rid of the header and footer OK. But there is still a blank line as the first line in stdout. Also, each record has a preceding space before the column value.
Is there a way to do what I want?
-dave
On Fri, 2009-05-08 at 09:51 -0700, Gauthier, Dave wrote: > Hi: > > > > Using a single psql command to generate stdout in linux that will be > redirected to a file. Many rows with 1 column are returned. I want > no header, no footer, no blank lines at the top or bottom, no initial > space before each record. This is what I’m trying... > > > > psql –P tuples_only=on,footer=off,border=0 mydb psql -A -t jd@jd-laptop:~$ psql -A -t -U postgres -c "select * from bool_test" f jd@jd-laptop:~$ Sincerely, Joshua D. Drake > > -- PostgreSQL - XMPP: jdrake@jabber.postgresql.org Consulting, Development, Support, Training 503-667-4564 - http://www.commandprompt.com/ The PostgreSQL Company, serving since 1997
On May 8, 2009, at 9:51 AM, Gauthier, Dave wrote:
This gets rid of the header and footer OK. But there is still a blank line as the first line in stdout. Also, each record has a preceding space before the column value.Is there a way to do what I want?
sed?
On Fri, 8 May 2009, Gauthier, Dave wrote: > Hi: > > Using a single psql command to generate stdout in linux that will be redirected to a file. Many rows with 1 column arereturned. I want no header, no footer, no blank lines at the top or bottom, no initial space before each record. Thisis what I'm trying... > > psql -P tuples_only=on,footer=off,border=0 mydb > > This gets rid of the header and footer OK. But there is still a blank line as the first line in stdout. Also, each recordhas a preceding space before the column value. > > Is there a way to do what I want? Do you need to have the rows aligned? The -A flag may work for you, though you might want to specify a different column seperator.
-A -t worked great. Thanks ! -dave -----Original Message----- From: Ben Chobot [mailto:bench@silentmedia.com] Sent: Friday, May 08, 2009 2:03 PM To: Gauthier, Dave Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] Controlling psql output On Fri, 8 May 2009, Gauthier, Dave wrote: > Hi: > > Using a single psql command to generate stdout in linux that will be redirected to a file. Many rows with 1 column arereturned. I want no header, no footer, no blank lines at the top or bottom, no initial space before each record. Thisis what I'm trying... > > psql -P tuples_only=on,footer=off,border=0 mydb > > This gets rid of the header and footer OK. But there is still a blank line as the first line in stdout. Also, each recordhas a preceding space before the column value. > > Is there a way to do what I want? Do you need to have the rows aligned? The -A flag may work for you, though you might want to specify a different column seperator.
On 2009-05-08, Gauthier, Dave <dave.gauthier@intel.com> wrote: > --_000_482E80323A35A54498B8B70FF2B87980040106E94Bazsmsx504amrc_ > Content-Type: text/plain; charset="us-ascii" > Content-Transfer-Encoding: quoted-printable > > Hi: > > Using a single psql command to generate stdout in linux that will be redire= > cted to a file. Many rows with 1 column are returned. I want no header, n= > o footer, no blank lines at the top or bottom, no initial space before each= > record. This is what I'm trying... > > psql -P tuples_only=3Don,footer=3Doff,border=3D0 mydb > > This gets rid of the header and footer OK. But there is still a blank line= > as the first line in stdout. Also, each record has a preceding space befo= > re the column value. > > Is there a way to do what I want? use "copy (select ...) to stdout" instead of "select ..." requires 8.3 or greater. as a bonus nulls and control characters re represented unambiguously.