Re: where is the database physically

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От Ing. Gabriel Monsalvo
Тема Re: where is the database physically
Дата
Msg-id 000d01c2b70c$a5764f80$4d00a8c0@77
обсуждение исходный текст
Ответ на where is the database physically  (mitchell laks <mlaks@bellatlantic.net>)
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Mitchell:

The location of the postgresql database, is the value of the $PGDATA
enviroment variable, if you are starting the postmaster manually the
option -D specified the $PGDATA, if not look up for the script that runs
postmaster at system start up.

Postgres creates a directory for each database with the oid.

Gabriel Monsalvo.

----- Original Message -----
From: "mitchell laks" <mlaks@bellatlantic.net>
To: <pgsql-admin@postgresql.org>
Sent: Wednesday, January 08, 2003 2:32 AM
Subject: [ADMIN] where is the database physically


> Hi. Thank you all for your thoughful comments, Philo and Jeremy. One
question
> wasn't addressed (mixed in with the mess of comments, my fault...).
>
> Where is the database located physically - i guess /var/lib/pgsql but how
is
> it broken into  files. For instance in mysql, i find the directory
> /var/lib/mysql has subdirectories labled for the databases and with files
in
> the corresponding directories "representing" the tables in the database. I
> know that postgresql is more sophisticated, but how does it store those
> tables and databases?
>
> Why would I want to know? I just copied a huge amount of data to a
postgresql
> database -  some tables have as more than 500,000 entries. Now I need to
> monitor the size of this database as it fills the harddrive.
> For instance, the default install appears to be in the   /var directory
( by
> looking at the output of df, i happen to have a separate partition mounted
as
> /var, which agrees with the postgres user having the /var/lib/pgsql as her
> home. If it was not a separate partition, i might have trouble sorting out
> the growth of teh database from the growth of the files on my computer.
>
> Another reason to look at the files is to guess how much space to expect
the
> backup files will take up, when i do my backups (like in the next few
days).
> I just havent found the answer in the documentation.
> Thanks you all. The program is just amazing.
>
> Yes it was funny that my last  posting had don't kill the postman on the
> bottom. I promise i had nothing to do with it! :).
>
> MItchell
>
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