我正在使用Cassandra 0.8.0。在Cassandra Cli中設置超級柱子系列
我無法弄清楚如何使用Cassandra-Cli將值添加到當前存在的SuperColumn中。例如:我已加入下列到我的密鑰空間
create column family authors
with comparator = UTF8Type and subcomparator = UTF8Type
and default_validation_class = UTF8Type
and column_metadata = [{
column_name: tags, validation_class: UTF8Type},
{column_name: url, validation_class:UTF8Type},
{column_name: title, validation_class: UTF8Type},
{column_name: publisher, validation_class: UTF8Type},
{column_name: email, validation_class: UTF8Type}];
我嘗試添加一行,這種超級柱做的: (輸入)[[email protected]] set authors[1]['1']['url'] = 'www.henry.com';
(輸出)[[email protected]] null
這是一個錯誤^
我試試這個太:
[[email protected]] set authors['henry']['url']['1'] = 'www.henry.com';
,並得到:
org.apache.cassandra.db.marshal.MarshalException: cannot parse 'henry' as hex bytes
操作Cassandra-Cli中SuperColumns的正確語法是什麼?你能提供一個例子來設置/獲取值在cassandra-cli中的超級列嗎?
謝謝
感謝您的回覆。如果Cassandra支持索引超級列中的子列,你會嗎? – Henry