One frequent source of confusion are the different units that the parameters in postgresql.conf use. shared_buffers is in 8 kB, work_mem is in 1 kB; bgwriter_delay is in milliseconds, checkpoint_warning is in seconds. Obviously, we can't change that without inconveniencing a lot of users.

I think it would be useful to allow units to be added to these settings, for example

shared_buffers = 1000kB
checkpoint_warning = 30s

This would also allow

shared_buffers = 512MB

which is a bit cumbersome to calculate right now (you'd need = 65536).

I haven't thought yet how to parse or implement this, but would people find this useful?

Well, it's on my TODO list for 8.2 to write a simple postgresql.conf conversion utility in Perl. If you wanted to make a change like that, it would make finishing that mandatory.

Just as well, right now half the vacuum settings are in a different section than another half.


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