riak search result excerpt

Question

Doeas是否有人知道riaksearch是否能够生成类似于lucene的高亮点摘录？

Answer 1

Riak Search doesn't expose this functionality out of the box, but with a little work you can create a rough approximation.

Riak Search allows you to feed search results into a MapReduce job. If you do this, then your Map or Reduce function will also get a list of token positions in the document that matched the query (this is exposed as keydata, http://www.basho.com/search.php?q=keydata ). Using these positions, you can write code to mark up the document or excerpt portions of text.

Answer 2

我认为这个功能几乎不会在Riak中实现，因为它的哲学意味着它不关心究竟存储在值中的是什么，因此除了提供像索引这样的元数据之外，它不会以任何有意义的方式处理它们。