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From "Waaij, B.D. (Bram) van der" <bram.vanderwa...@tno.nl>
Subject RE: Timestamp for versioning?
Date Tue, 23 Mar 2010 14:41:39 GMT
Can you explain then to me what the purpose is of the timestamp? 


> -----Original Message-----
> From: Jonathan Ellis [mailto:jbellis@gmail.com] 
> Sent: dinsdag 23 maart 2010 15:35
> To: user@cassandra.apache.org
> Subject: Re: Timestamp for versioning?
> 
> No, we're not planning to add support for retrieving old versions.
> 
> 2010/3/23 Waaij, B.D. (Bram) van der <bram.vanderwaaij@tno.nl>:
> > Are there any plans to add versioning in the near future to 
> cassandra?
> >
> > What is the purpose of the timestamp in the current implementation?
> >
> > Best regards,
> > Bram
> >
> > ________________________________
> > From: 张宇 [mailto:zyxt001@gmail.com]
> > Sent: dinsdag 23 maart 2010 14:56
> > To: user@cassandra.apache.org
> > Cc: Waaij, B.D. (Bram) van der
> > Subject: Re: Timestamp for versioning?
> >
> > HBase supports the version through the timestamp,but Cassandra not.
> >
> > 2010/3/23 Waaij, B.D. (Bram) van der <bram.vanderwaaij@tno.nl>
> >>
> >> Hi there,
> >>
> >> Is there already support for doing something with the timestamp? I 
> >> would like to use it as a versioning mechanism of the 
> value belonging 
> >> to a certain key. When i store a column with the same key, 
> different 
> >> value and different timestamp, would i still be able to 
> retrieve both versions?
> >>
> >> Looking at the API I can not find such method, but perhaps I am 
> >> missing something as I am new to cassandra.
> >>
> >> Best regards,
> >> Bram
> >>
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> >
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> 
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