Thanks you very much.
but I'm afraid it's not a graceful means if there are billion columns in a row.
 

发件人: Michal Augustýn <augustyn.michal@gmail.com>
收件人: user@cassandra.apache.org; Yonder <zyzha@yahoo.com.cn>
发送日期: 2011年6月2日, 星期四, 下午 9:25
主题: Re: how to know there are some columns in a row

Hi,

just use "get" Thrift method where "super_column" and "column"
attributes in ColumnPath structure are empty. Yes, it returns both
column names and values but I'm afraid there is no Thrift-way how to
get column names only.

Augi

2011/6/2 Yonder <zyzha@yahoo.com.cn>:
> Dear all,
>
> Is there any methods to list column names in a row?
>
> Thanks,
> Yonder
>