On 11/9/10 1:50 PM, Robert Haas wrote:
> 5. It would be pretty much impossible to run with autovacuum turned
> off, and in fact you would likely need to make it a good deal more
> aggressive in the specific case of aborted transactions, to mitigate
> problems #1, #3, and #4.
6. This would require us to be more aggressive about VACUUMing old-cold
relations/page, e.g. VACUUM FREEZE. This it would make one of our worst
issues for data warehousing even worse.
What about having this map (and other hintbits) be per-relation? Hmmm.
That wouldn't work for DDL, I suppose ...
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-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com
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