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List:       postgresql-general
Subject:    Re: [GENERAL] read-only UNLOGGED tables
From:       Leonardo Francalanci <m_lists () yahoo ! it>
Date:       2011-03-31 12:55:57
Message-ID: 197205.40613.qm () web29003 ! mail ! ird ! yahoo ! com
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> Yes, but  its more than fsync.
> 
> You'd need to copy the whole table, all indexes and  forks to WAL if
> wal_level is set high.


"if" wal_level is set high. If it's set to minimal it would be "simple" fsyncs,
right? I mean: if it's at minimal it wouldn't take long, and it basically won't
re-write any data. This would be very useful for data that it's not "that
important", but that at the same time can be made "persistent" if needed...

Am I wrong? (I'm not too familiar with WAL...)



Leonardo




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