pgsql data file location

I am trying to find where psql reads the data from when a table is created. Also is it possible to copy that data and transfer it onto another system running psql. If not does anyone know a good psql backup solution.

Thanks

ismaila Kane

All that is possible.
I you have not read the Admin Docs yet.

Regds
mallah.

> I am trying to find where psql reads the data from when a table is created. Also is it possible
> to copy that data and transfer it onto another system running psql. If not does anyone know a
> good psql backup solution.
>
> Thanks
>
> ismaila Kane

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Hello Mallah,

Tried the PG_dump command and it works great. Any idea about the location of
the backup file?Also is the database backup or are the tables and schemas
backed up too.Any restore command to be used .

Thank you

Ismaila Kane
----- Original Message -----
From: <mallah(at)trade-india(dot)com>
To: <ikane(at)ciscolabs(dot)net>
Cc: <pgsql-general(at)postgresql(dot)com>
Sent: Friday, April 11, 2003 2:17 PM
Subject: Re: [GENERAL] pgsql data file location

>
> Dear Kane,
>
> you are rite it does not say explicitly the location of data file .
>
> But if you are wanting to know it for backup purposes reasons you are
> in the wrong direction.
>
> The only way to make safe/consistent backups in postgresql is to use
> pg_dump or pg_dumpall.
>
> If you are just curious about the location, it is either passed to
postmaster
> by -D option or by environment PGDATA. for typical tar ball installs it is
> /usr/local/pgsql/data/ in RPM based it is /var/lib/pgsql/data
>
> under data folder there exists a folder "base" , under "base" one folder
per database.
> these folders have names correspoding to internal ids in system catalogs.
> under these numeric folder there are files for individual tables and
indexes.
>
> but do not copy these files and folder thinking that you are "backing up"
> it will be futile , as said pg_dump/all is the only way of backing up.
>
> Regds
> Mallah.
>
>
>
>
>
> > Yes I read the manual but does not say where the location of the data
file is?
> > ----- Original Message -----
> > From: <mallah(at)trade-india(dot)com>
> > To: <ikane(at)ciscolabs(dot)net>
> > Cc: <pgsql-general(at)postgresql(dot)org>
> > Sent: Friday, April 11, 2003 4:14 AM
> > Subject: Re: [GENERAL] pgsql data file location
> >
> >
> >>
> >> All that is possible.
> >> I you have not read the Admin Docs yet.
> >>
> >> Regds
> >> mallah.
> >>
> >>
> >> > I am trying to find where psql reads the data from when a table is
> > created. Also is it possible
> >> > to copy that data and transfer it onto another system running psql.
If
> > not does anyone know a
> >> > good psql backup solution.
> >> >
> >> > Thanks
> >> >
> >> > ismaila Kane
> >>
> >>
> >>
> >> -----------------------------------------
> >> Get your free web based email at trade-india.com.
> >> "India's Leading B2B eMarketplace.!"
> >> http://www.trade-india.com/
>
>
>
> -----------------------------------------
> Get your free web based email at trade-india.com.
> "India's Leading B2B eMarketplace.!"
> http://www.trade-india.com/
>
>

> Hello Mallah,
>
> Tried the PG_dump command and it works great. Any idea about the location of the backup
> file?

pg_dump is supposed to outout to stdout. you can redirect to a file using >

$ pg_dump dbname > /path/to/dumpfile.sql

Also is the database backup or are the tables and schemas backed up too.

it backs up everything in the database except large objects(lo)
(ignore it if u dont know understand lo)

what else do u expect it to backup if not tables and schemas?

Any restore
> command to be used .

$ psql -f dumpfile.sql

>
> Thank you
>
> Ismaila Kane
> ----- Original Message -----
> From: <mallah(at)trade-india(dot)com>
> To: <ikane(at)ciscolabs(dot)net>
> Cc: <pgsql-general(at)postgresql(dot)com>
> Sent: Friday, April 11, 2003 2:17 PM
> Subject: Re: [GENERAL] pgsql data file location
>
>
>>
>> Dear Kane,
>>
>> you are rite it does not say explicitly the location of data file .
>>
>> But if you are wanting to know it for backup purposes reasons you are in the wrong direction.
>>
>> The only way to make safe/consistent backups in postgresql is to use pg_dump or pg_dumpall.
>>
>> If you are just curious about the location, it is either passed to
> postmaster
>> by -D option or by environment PGDATA. for typical tar ball installs it is
>> /usr/local/pgsql/data/ in RPM based it is /var/lib/pgsql/data
>>
>> under data folder there exists a folder "base" , under "base" one folder
> per database.
>> these folders have names correspoding to internal ids in system catalogs. under these numeric
>> folder there are files for individual tables and
> indexes.
>>
>> but do not copy these files and folder thinking that you are "backing up" it will be futile ,
>> as said pg_dump/all is the only way of backing up.
>>
>> Regds
>> Mallah.
>>
>>
>>
>>
>>
>> > Yes I read the manual but does not say where the location of the data
> file is?
>> > ----- Original Message -----
>> > From: <mallah(at)trade-india(dot)com>
>> > To: <ikane(at)ciscolabs(dot)net>
>> > Cc: <pgsql-general(at)postgresql(dot)org>
>> > Sent: Friday, April 11, 2003 4:14 AM
>> > Subject: Re: [GENERAL] pgsql data file location
>> >
>> >
>> >>
>> >> All that is possible.
>> >> I you have not read the Admin Docs yet.
>> >>
>> >> Regds
>> >> mallah.
>> >>
>> >>
>> >> > I am trying to find where psql reads the data from when a table is
>> > created. Also is it possible
>> >> > to copy that data and transfer it onto another system running psql.
> If
>> > not does anyone know a
>> >> > good psql backup solution.
>> >> >
>> >> > Thanks
>> >> >
>> >> > ismaila Kane
>> >>
>> >>
>> >>
>> >> -----------------------------------------
>> >> Get your free web based email at trade-india.com.
>> >> "India's Leading B2B eMarketplace.!"
>> >> http://www.trade-india.com/
>>
>>
>>
>> -----------------------------------------
>> Get your free web based email at trade-india.com.
>> "India's Leading B2B eMarketplace.!"
>> http://www.trade-india.com/

-----------------------------------------
Get your free web based email at trade-india.com.
"India's Leading B2B eMarketplace.!"
http://www.trade-india.com/