从Cassandra列表集合中选择索引
问题描述：
我很好奇，如果可以从Cassandra中的列表集合中选择特定的索引。说我有：
I was curious if it's possible to SELECT a specific index from a list collection in Cassandra. Say I have:
CREATE TABLE users (
user_id text PRIMARY KEY,
order_list list<text>
);
UPDATE users
SET ordered_list = [ 'thing1', 'thing2', 'thing3' ] WHERE user_id = 'user1';
可以从CQL获取ordered_list的索引，例如ordered_list [1]查询而不是整个列表？
Is it possible to then get back an index of ordered_list, such as ordered_list[1] from a CQL query instead of the entire list?
答
不，你不能。您可以使用下标 UPDATE 和 DELETE ，但不能 SELECT 或 INSERT 。
No, you can't. You can UPDATE and DELETE with subscripts, but not SELECT or INSERT.