On 12/03/2013 01:37 PM, Andres Freund wrote:
I haven't looked thoroughly through all callsites, but shouldn't the vacuumlazy callsite use std = true?
Well, it's logging an empty page, ie. a page full of zeros. I'm not sure if you'd consider that a "standard" page. Like the backup-block code in xlog.c, log_newpage actually makes a full page image without the hole if pd_lower == 0, even if you pass std = 'true', so the end result is the same.
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