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From "Wangpei (Peter)" <peter.wang...@huawei.com>
Subject Re: managing a limited-length list as a value
Date Sat, 19 Feb 2011 14:27:17 GMT
Maybe you can try this: use MAX-time as your column name, then get the first limit columns.

-----邮件原件-----
发件人: Benson Margulies [mailto:bimargulies@gmail.com] 
发送时间: 2011年2月19日 2:11
收件人: user@cassandra.apache.org
主题: managing a limited-length list as a value

The following is derived from the redis list operations.

The data model is that a key maps to an list of items. The operation
is to push a new item into the front, and discard any items from the
end above a threshold number of items.

of course, this can be done by reading a value, fiddling with it, and
writing it back. I write this email to wonder if there's any native
trickery to avoid having to read the value, but rather permitting some
sort of 'push' operation.
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