Re: Pre-allocated free space for row updating (like PCTFREE) - Mailing list pgsql-hackers

From Josh Berkus
Subject Re: Pre-allocated free space for row updating (like PCTFREE)
Date
Msg-id 200508230855.00962.josh@agliodbs.com
Whole thread Raw
In response to Re: Pre-allocated free space for row updating (like PCTFREE)  ("Jim C. Nasby" <jnasby@pervasive.com>)
Responses Re: Pre-allocated free space for row updating (like PCTFREE)  (Satoshi Nagayasu <nagayasus@nttdata.co.jp>)
List pgsql-hackers
Jim, Satoshi,

> It should be possible to see what the crossover point is in terms of
> benefit using dbt2 and tweaking the transactions that are run, something
> I can do if there's interest. But I agree with Satoshi; if there are
> people who will benefit from this option (which doesn't hurt those who
> choose not to use it), why not put it in?

Because your predicate is still disputed?   That is, we don't know that people 
will benefit yet -- pgbench is a pretty useless benchmark for real 
performance comparisons.

Satoshi, if you can package up a patch on current CVS, I'll throw it at DBT2.

-- 
Josh Berkus
Aglio Database Solutions
San Francisco


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