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From yuankui <kui.y...@fraudmetrix.cn>
Subject limit the size of data type LIST
Date Thu, 13 Aug 2015 13:05:54 GMT
hi, friends

I am design a message history table

CREATE TABLE message_history (
    user_name text PRIMARY KEY,
    time timestamp,
    message_details list<text>, 
);

so that I can query a user's message via primary key `user_name` at once.

but the item in `message_details` list may be very long so that I want to limit the list size
of the message_details list.

is there a way to solve this?

like a redis operation `LTRIM` - http://redis.readthedocs.org/en/latest/list/ltrim.html <http://redis.readthedocs.org/en/latest/list/ltrim.html>



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