[GitHub] worldspawn opened a new issue #1388: Couchdb documentation for json index definition is unclear on support for indexing array fields

[GitBox <gi...@apache.org>]

worldspawn opened a new issue #1388: Couchdb documentation for json index definition is unclear on support for indexing array fields
URL: https://github.com/apache/couchdb/issues/1388
 
 
   The documentation here http://docs.couchdb.org/en/2.1.1/api/database/find.html#db-index says 
   
   ```Index object format for JSON type indexes
   
   The index object is a JSON array of field names following the sort syntax. Nested fields are also allowed, e.g. “person.name”.```
   
   It doesn't explicitly state that indexing array fields is allowed. It doesnt' provide an example of how to do it if it is.
   
   To clarify, given: 
   ```{
     "_id": "theid",
     "results": [
       { "type": "sometype" }
     ]
   }```
   
   I know i can query that with the $elemMatch selector but can it be indexed too? I've read a few examples suggesting that a notation like "results[].type" or "results.[].type" can be used but in my own tests I always get a warning stating that no matching index could be found.
   
   

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