
> Really?! Once again: WAL records give you *physical* address of tuples
> (both heap and index ones!) to be removed and size of log to read
> records from is not comparable with size of data files.

So how about a background "vacuum like" process, that reads the WAL
and does the cleanup ? Seems that would be great, since it then does not 
need to scan, and does not make forground cleanup necessary.

Problem is when cleanup can not keep up with cleaning WAL files, that already 
want to be removed. I would envision a config, that sais how many Mb of WAL 
are allowed to queue up before clients are blocked.

Andreas

Mon, 21 May 2001 17:49:28 +0200
Zeugswetter Andreas SB  <ZeugswetterA@wien.spardat.at>
AW: Plans for solving the VACUUM problem 