Обсуждение: Datafiles for Databases

> Will the postgres create individual data file for databases?

Yes.

> How to get the datafile path of a database?

/var/lib/pgsql/data/base/, database directory name = pg_database.oid. You
can also use oid2name contrib module for finer detail.

regards,
bhuvaneswaran

In the last exciting episode, sgnerd@yahoo.com.sg ("Kumar") wrote:
> I was looking for a structure like oracle or ms Sql server in Postgres. What I have expected is individual
> datafiles for individual databases. But i cant fine such items in the /usr/local/pgsql/data directory.
>
> Will the postgres create individual data file for databases?

No.  Just as with Oracle, PostgreSQL creates multiple files for each
database.

> How to get the datafile path of a database?

select oid, datname from pg_database;

The path for database 'datname' will be:  $PGDATA/base/oid/
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Christopher Browne wrote:
> In the last exciting episode, sgnerd@yahoo.com.sg ("Kumar") wrote:
> > I was looking for a structure like oracle or ms Sql?server in Postgres. What I have expected is individual
> > datafiles for individual databases. But i cant fine such items in the /usr/local/pgsql/data directory.
> >
> > Will the postgres create individual data file for databases?
> 
> No.  Just as with Oracle, PostgreSQL creates multiple files for each
> database.
> 
> > How to get the datafile path of a database?
> 
> select oid, datname from pg_database;
> 
> The path for database 'datname' will be:
>    $PGDATA/base/oid/

See the "Monitoring Disk Space" section in our manuals.

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