Viewing table data only from its corresponding oid-named file

Started by Heiner Vegaover 16 years ago2 messageshackers
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#1Heiner Vega
hvegat@gmail.com

Hi Guys

I have some files that were part of a database, I mean they were under
/*data/base/DB_OID/table_oid* postgres structure

As I understand *table_oid *which is a numbered file corresponds to one
table in the original database.

Here is my question: Is there a tool/method to view the data in this
file so I can get a clue of what the data in that table was?

We had a major drive crash and we could recover only a few of those
files and want to know if we have a chance to recover some data only
from those kind of files.

Thanks in advance.

--
Heiner Vega

#2Alvaro Herrera
alvherre@2ndquadrant.com
In reply to: Heiner Vega (#1)
Re: Viewing table data only from its corresponding oid-named file

Heiner Vega Thames escribi�:

Hi Guys

I have some files that were part of a database, I mean they were
under /*data/base/DB_OID/table_oid* postgres structure

As I understand *table_oid *which is a numbered file corresponds to
one table in the original database.

Here is my question: Is there a tool/method to view the data in this
file so I can get a clue of what the data in that table was?

We had a major drive crash and we could recover only a few of those
files and want to know if we have a chance to recover some data only
from those kind of files.

It's rather difficult. Try pgfsck and/or pg_filedump. Decoding the
data in them may be very hard -- if you are able to reconstruct the
tables with all columns, it might work, but it will still be very
difficult.

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support