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Re: Survey on backing up unlogged tables: help us with PostgreSQL development! - Mailing list pgsql-general

From Tom Lane
Subject Re: Survey on backing up unlogged tables: help us with PostgreSQL development!
Date
Msg-id 25717.1290033596@sss.pgh.pa.us
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In response to Re: Survey on backing up unlogged tables: help us with PostgreSQL development!  ("Marc Mamin" <M.Mamin@intershop.de>)
Responses Re: Survey on backing up unlogged tables: help us with PostgreSQL development!  ("Marc Mamin" <M.Mamin@intershop.de>)
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"Marc Mamin" <M.Mamin@intershop.de> writes:
> Will it be possible to switch from unlogged to logged ?

Probably not, because it would completely confuse hot standby slaves
(or anything else looking at the WAL replay stream).  You can't just
start issuing WAL records against an already-built table or index,
because the WAL entries are deltas.

            regards, tom lane

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