On Fri, 1 Jun 2007, Bruce Momjian wrote:
Log Message:
-----------
TODO item not needed anymore now that the buffer cache is
scan-resistant:
<
< * Allow free-behind capability for large sequential scans, perhaps using
< posix_fadvise()
<
< Posix_fadvise() can control both sequential/random file caching and
< free-behind behavior, but it is unclear how the setting affects other
< backends that also have the file open, and the feature is not supported
< on all operating systems.
This todo item is about telling the OS cache that we don't want these
buffers kept around, not about pg's own buffer cache. So I think it's
still valid.
Kris Jurka
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