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From Ben Hood <0x6e6...@gmail.com>
Subject Re: CQL decimal encoding
Date Mon, 24 Feb 2014 21:30:38 GMT
On Mon, Feb 24, 2014 at 7:43 PM, Paul "LeoNerd" Evans
<leonerd@leonerd.org.uk> wrote:
> On Mon, 24 Feb 2014 19:14:48 +0000
> Ben Hood <0x6e6562@gmail.com> wrote:
>
>> So I have a question about the encoding of 0: \x00\x00\x00\x00\x00.
>
> The first four octets are the decimal shift (0), and the remaining ones
> (one in this case) encode a varint - 0 in this case. So it's
>
>   0 * 10**0
>
> literally zero.
>
> Technically the decimal shift matters not for zero - any four bytes
> could be given as the shift, ending in \x00, but 0 is the simplest.

OK, that makes sense. I was getting confused by the Go API for
decimals, which doesn't let you set the scale to 0 (because it results
in / by 0 error). So I'll have to look into that particular API a bit
further.

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