How can I groupBy and change content of the value in couchbase?

问题

Exple :

I have a result like this

Result1 AFTER EMIT:

Key-------------------------------value

"2014/10/31" ----------------- {"A":a}

"2014/10/31" ----------------- {"B":b}

"2014/10/31"----------------- {"C":c}

"2014/10/31"----------------- {"D":d}

How can I output this new result from the previous one:

Key-------------------------value

"2014/10/31" -----------------{"Array":["A":a, "B":b, "C":c, "D":d]}

Is there a way? Any help will be appreciated. Thanks

回答1:

You can use Couchbase v3 new N1QL query language for that. Also there is Query Language Tutorial. Specifically Array Comprehensions syntax.

回答2:

I found it . Just do : group = true in the path or select it from the filter result . and a reduce function to return all the values from the map. also you can add the start key = "2014/10/31" and end key= "2014/10/31".

来源：https://stackoverflow.com/questions/26681234/how-can-i-groupby-and-change-content-of-the-value-in-couchbase