From: Tanaka Akira <akr@...>
Date: 2010-11-28T17:53:28+09:00
Subject: [ruby-core:33447] Re: [Ruby 1.9-Feature#4068] Replace current standard Date/DateTime library with home_run

2010/11/28 tadayoshi funaba <redmine@ruby-lang.org>:
>
>> I am not sure if we need to guarantee granularity less than a nano
>> second.  Do we?
>
> ?? but, we already have

I used Time to represent struct bintime in FreeBSD.
ext/socket/ancdata.c instantiates Time object from datagram timestamp which
contains struct bintime.
struct bintime can represent 2**-64 second.
http://phk.freebsd.dk/pubs/timecounter.pdf

Also, I found recent DB2 provides picosecond in TIMESTAMP.
If someone try to implement a binding for DB2,
nanosecond precision object is not satisfactory.
-- 
Tanaka Akira