On 12.02.22 01:49, Peter Geoghegan wrote:
> Add VACUUM instrumentation for scanned pages, relfrozenxid.
This patch introduced the log messages
"new relfrozenxid: %u, which is %d XIDs ahead of previous value\n"
"new relminmxid: %u, which is %d MXIDs ahead of previous value\n"
According to the surrounding math in each case, this means that the new
%u is larger by %d than the previous value.
The use of "ahead of" had confused me here, since I needed to think
three times about which direction is meant. I suppose it's technically
correct, but perhaps there is a clearer term?