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Pavan Deolasee wrote:
> Please find the attached HOT patch, which I think is now ready for
> review.
>
> The only known issue left to-be-done is making the index available
> in the read-committed transaction which created it. Right now the index
> is made available to the transaction unless one or more rows were
> UPDATEd in the same transactions before creating the index OR there were
> RECENTLY_DEAD tuples that we did not index while building the index.
> Both of these cases do not seem very common to me.The patch can easily
> be tweaked to make the index available even in these cases, but I left it
> because Tom has raised concerns about transaction using the new index
> with some old snapshot. I haven't been able to create such a scenario
> so thought would best leave it until someone picks it up for review and
> take it up at that time.
>
> One of the regression test fails, but thats just a side-effect of how CIC
> works now. I didn't change the expected output just yet because that might
> have covered this side-effect. I plan to spend some time on performance
> testing and would post those results soon.
>
> I would appreciate if others also give it a shot and see if it gives any
> performance jump in their respective setups. I think the best would
> come out in IO bound testing.
>
> Thanks,
> Pavan
>
> --
>
> EnterpriseDB http://www.enterprisedb.com
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--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
