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From Bryan Duxbury <br...@rapleaf.com>
Subject Re: C++ TimeUUID for Column Name
Date Tue, 17 Aug 2010 17:33:27 GMT
What language is your client in?

On Tue, Aug 17, 2010 at 10:27 AM, themanatuf@juno.com
<themanatuf@juno.com>wrote:

> I have a ColumnFamily in Cassandra that is of Super type and each
> SuperColumn name is a TimeUUID. I've had no problem using TimeUUID as the
> SuperColumn name until now...
>
> I've looked at the thrift code and I see all of the writeBinary functions
> expect a std::string as the input which is perfectly fine for everything
> EXCEPT TimeUUID types. The TimeUUID I'm trying to insert has a 0x00
> character within it (and apparently that is valid for a TimeUUID). The
> string representation of my TimeUUID is:
>
> cb0b6a00-aa51-11df-9509-7071bc4c56eb
>
> Just to make sure this is accurate I wrote a quick C++ test using
> uuid_parse and I was able to get the valid time back:
>
> 2010/08/17 18:50:12 (format: %Y/%m/%d %H:%M:%S)
>
> The 16-byte hex representation of this UUID is:
>
> 0xCB 0x0B 0x6A 0x00 0xAA 0x51 0x11 0xDF 0x95 0x09 0x70 0x71 0xBC 0x4C 0x56
> 0xEB
>
> When trying to add this SuperColumn I'm obviously getting the error that
> UUID's must be exactly 16 bytes. When the UUID is being converted to a
> string, the copy looks to be stopping after the 3rd byte.
>
> Is there any way around this? This is kind of a show-stopper for me and I
> can't figure out how to workaround it... Any help would be MUCH appreciated.
>
>
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