| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: XLog: how to log? |
| Date: | 2004-05-11 14:37:49 |
| Message-ID: | 9702.1084286269@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> writes:
> Hmm ... I think it should be forbidden to quote a subtrans Xid as
> rollforward point. Not sure if that can be done though, or how to do
> it.
Seems like a nonissue, unless the XLOG trace makes a subtrans look the
same as a main trans, which it'd not do would it?
We could allow specification of a subtrans ID to be interpreted the same
as specification of its parent main trans. Dunno if that's actually
useful to anyone. Actually, I'd think that people would generally
specify recovery up to a particular timestamp, and not be interested in
xact numbers at all ...
regards, tom lane
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