Re: [COMMITTERS] pgsql: Implement prefetching via posix_fadvise() for bitmap index scans.

I sent a message describing where I was headed with the code and my
misgivings with Tom's concerns. I haven't seen any responses.

Hmmm. I can't find my message however so now I'm wondering if it ever
hit the lists.

--
Greg

On 6 Feb 2009, at 18:13, Bruce Momjian <bruce(at)momjian(dot)us> wrote:

> Tom Lane wrote:
>> Log Message:
>> -----------
>> Implement prefetching via posix_fadvise() for bitmap index scans.
>> A new
>> GUC variable effective_io_concurrency controls how many concurrent
>> block
>> prefetch requests will be issued.
>>
>> (The best way to handle this for plain index scans is still under
>> debate,
>> so that part is not applied yet --- tgl)
>
> Where are we on completing this feature?
>
> --
> Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
> + If your life is a hard drive, Christ can be your backup. +
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On Sat, Feb 7, 2009 at 9:46 AM, Greg Stark <greg(dot)stark(at)enterprisedb(dot)com> wrote:
> I sent a message describing where I was headed with the code and my
> misgivings with Tom's concerns. I haven't seen any responses.
>
> Hmmm. I can't find my message however so now I'm wondering if it ever hit
> the lists.

I know it did, because I remember reading it.

<searches>

http://archives.postgresql.org/message-id/87eiynlhbt.fsf@oxford.xeocode.com

...Robert