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Re: Named restore points

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Jaime Casanova <jaime(at)2ndquadrant(dot)com>
Cc: Euler Taveira de Oliveira <euler(at)timbira(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Named restore points
Date: 2011-02-08 13:05:24
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Lists: pgsql-hackers
On Tue, Feb 8, 2011 at 2:05 AM, Jaime Casanova <jaime(at)2ndquadrant(dot)com> wrote:
>> Finally, this is a nice feature iif we have a way to know what named restore
>> points are available. DBAs need to take note of this list (that is not good)
>> and the lazy ones will have a hard time to recover the right name (possibly
>> with a xlog dump tool).
>> So how could we store this information? Perhaps a file in
>> $PGDATA/pg_xlog/restore_label that contains the label (and possibly the WAL
>> location). Also it must have a way to transmit the restore_label when we add
>> another restore point. I didn't implement this part (Jaime?) and it seems as
>> important as the new xlog record type that is in the patch. It seems
>> complicate but I don't have ideas. Anyone? The restore point names could be
>> obtained by querying a function (say, pg_restore_point_names or
>> pg_restore_point_list).
> i still think this should be a separate tool or a dba written list,

I agree.  Keeping track of where you've set named restore points is
not going to be a problem with a simple solution.  Which restore
points are available is going to depend on which base backup you
restored and what WAL files you stuffed into pg_xlog.

Robert Haas
The Enterprise PostgreSQL Company

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