Обсуждение: 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@momjian.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@momjian.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.stark@enterprisedb.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