Thread: Two questions.
Hello ! Where I can find information, to know since one is organized the system of files of a PostgreSQL database ? ( files of database objects ). If I have a " disc crash " or lose accidental one or several files, since I can realize which lack? Thank you very much. Fabio Bon
bon@kernel.net.uy wrote:
> Hello !
>
> Where I can find information, to know since one is organized the system of
> files of a PostgreSQL database ? ( files of database objects ).
>
> If I have a " disc crash " or lose accidental one or several files, since I
> can realize which lack?
I wrote something up for 7.3:
http://developer.postgresql.org/docs/postgres/diskusage.html
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
Thank you Bruce.
Really, what I would want to know is how PostgreSQL assigns a physical name
to files what represent the database objects.
I noticed that if I lose a file of the database, the pg_restore program does
not recover it, giving an error because the associated table exists on the
database. On the other hand I can't drop the table because an error occurs:
the file or directory does not exist.
How I can to solve this problem ?
Regards,
Fabio Bon
-----Mensaje original-----
De: pgsql-admin-owner@postgresql.org
[mailto:pgsql-admin-owner@postgresql.org]En nombre de Bruce Momjian
Enviado el: martes 8 de octubre de 2002 23:22
Para: fbon@adinet.com.uy
CC: pgsql-admin@postgresql.org
Asunto: Re: [ADMIN] Two questions.
bon@kernel.net.uy wrote:
> Hello !
>
> Where I can find information, to know since one is organized the system of
> files of a PostgreSQL database ? ( files of database objects ).
>
> If I have a " disc crash " or lose accidental one or several files, since
I
> can realize which lack?
I wrote something up for 7.3:
http://developer.postgresql.org/docs/postgres/diskusage.html
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
The file is the oid of the pg_class row for the relation. --------------------------------------------------------------------------- bon@kernel.net.uy wrote: > > Thank you Bruce. > > Really, what I would want to know is how PostgreSQL assigns a physical name > to files what represent the database objects. > > I noticed that if I lose a file of the database, the pg_restore program does > not recover it, giving an error because the associated table exists on the > database. On the other hand I can't drop the table because an error occurs: > the file or directory does not exist. > > How I can to solve this problem ? > > Regards, > Fabio Bon > > -----Mensaje original----- > De: pgsql-admin-owner@postgresql.org > [mailto:pgsql-admin-owner@postgresql.org]En nombre de Bruce Momjian > Enviado el: martes 8 de octubre de 2002 23:22 > Para: fbon@adinet.com.uy > CC: pgsql-admin@postgresql.org > Asunto: Re: [ADMIN] Two questions. > > > bon@kernel.net.uy wrote: > > Hello ! > > > > Where I can find information, to know since one is organized the system of > > files of a PostgreSQL database ? ( files of database objects ). > > > > If I have a " disc crash " or lose accidental one or several files, since > I > > can realize which lack? > > I wrote something up for 7.3: > > http://developer.postgresql.org/docs/postgres/diskusage.html > > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 359-1001 > + If your life is a hard drive, | 13 Roberts Road > + Christ can be your backup. | Newtown Square, Pennsylvania 19073 > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
Actually, pg_class.relfilenode. --------------------------------------------------------------------------- bon@kernel.net.uy wrote: > > Thank you Bruce. > > Really, what I would want to know is how PostgreSQL assigns a physical name > to files what represent the database objects. > > I noticed that if I lose a file of the database, the pg_restore program does > not recover it, giving an error because the associated table exists on the > database. On the other hand I can't drop the table because an error occurs: > the file or directory does not exist. > > How I can to solve this problem ? > > Regards, > Fabio Bon > > -----Mensaje original----- > De: pgsql-admin-owner@postgresql.org > [mailto:pgsql-admin-owner@postgresql.org]En nombre de Bruce Momjian > Enviado el: martes 8 de octubre de 2002 23:22 > Para: fbon@adinet.com.uy > CC: pgsql-admin@postgresql.org > Asunto: Re: [ADMIN] Two questions. > > > bon@kernel.net.uy wrote: > > Hello ! > > > > Where I can find information, to know since one is organized the system of > > files of a PostgreSQL database ? ( files of database objects ). > > > > If I have a " disc crash " or lose accidental one or several files, since > I > > can realize which lack? > > I wrote something up for 7.3: > > http://developer.postgresql.org/docs/postgres/diskusage.html > > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 359-1001 > + If your life is a hard drive, | 13 Roberts Road > + Christ can be your backup. | Newtown Square, Pennsylvania 19073 > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073