Is there a way to skip a value in a complex key (i.e. an array key) when using 
startkey and end key? That is, is there a way to match any value for an item in 
the array? 

I have a document with a place_id, plant_id, date_created and date_modified. 
Sometimes I want all docs with place_id=X and plant_id=Y, where other times I 
only want place_id=X and any plant_id; sometimes I will want to specify a 
creation and/or modification date, other times this will not be relevant.  
Since these values are all user defined, and it's likely more properties will 
be added in the future, I don't think it's viable to use multiple views 
specific to each use case.

I'm currently using a single view map emitting multiple rows with null values 
to allow me to specify a null value in my startkey/endkey values.

function(doc){
    if(doc.type==='planting'){
        emit([doc.place_id, doc.plant_id, doc.date_created, doc.date_modified], 
null);
        emit([doc.place_id, null, doc.date_created, doc.date_modified], null);
       emit([null, null, doc.date_created, doc.date_modified], null);
    }
}

Is there a more elegant way I can do this without the multiple row emits?

(note: I'm actually using PouchDB and replicating to CouchDB, so this map query 
is actually being run in the browser with PouchDB)

Thanks
Andru Vallance

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