Re: [HACKERS] There's random access and then there's random access

[Decibel!]

On Dec 4, 2007, at 1:42 PM, Gregory Stark wrote:

I'm debating between two ways to structure the code right now. Do I put the logic to peek ahead in nodeBitmapHeapScan to read ahead and remember the info seen or in tidbitmap with an new api function which is only really useful for

this one use case.

--
Decibel!, aka Jim C. Nasby, Database Architect  [EMAIL PROTECTED]
Give your computer some brain candy! www.distributed.net Team #1828

There has been discussion of having a bg_reader, similar to the bg_writer. Perhaps that would be better than creating something that's specific to bitmap scans? Also, I would expect to see a speed improvement even on single drives if the OS is actually issuing multiple requests to the drive. Doing so allows the drive to optimally order all of the reads.

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