mmmm another solution that jumped to my mind is to use stats :
Given the field : product_id to be the collapsing field.
For the facet i want the collapsed count I can do something like :
{
brands:{
terms : { // terms facet creates a bucket for each indexed term in the
field
field : brand,
sort : "uniqueProducts desc",
facet : {
uniqueProducts : "unique(product_id)"
}
}
}
}
I will try it for curiousity!
Cheers
On Thu, Sep 8, 2016 at 9:45 AM, Alessandro Benedetti <abenede...@apache.org>
wrote:
> Hi guys,
> was thinking to this problem :
>
> Given a set of flat documents I want to calculate facets on :
> 1) flat results set
> 2) collapsed result set
>
> Specifically some of my field facets will need to be on the flat results
> set and some of them will need to be calculated over a collapsed result set
> ( you can immagine collapsed on one specific field).
>
> I know that this ideally can be solve restructuring the index in a nested
> object model and I agree that would be a good approach to address this
> problem ( as the nesting structure can be useful to solve other problems as
> well)
>
> Let's assume I don't want to change at all my schema.
> Is there a way to specify for some facet a domain ( the collapse filter
> query), while for others not ?
> I was taking a look to this : http://yonik.com/facet-domains/ which is
> conceptually similar to what I am describing but at the moment does not
> support a flexible use case ( taking in input a random filter query) .
>
> A naive solution would be to run 2 separates Solr queries ( one collapsed
> and one not).
> But let's explore other ideas !
>
> Cheers
>
>
>
> --
> --------------------------
>
> Benedetti Alessandro
> Visiting card : http://about.me/alessandro_benedetti
>
> "Tyger, tyger burning bright
> In the forests of the night,
> What immortal hand or eye
> Could frame thy fearful symmetry?"
>
> William Blake - Songs of Experience -1794 England
>
--
--------------------------
Benedetti Alessandro
Visiting card : http://about.me/alessandro_benedetti
"Tyger, tyger burning bright
In the forests of the night,
What immortal hand or eye
Could frame thy fearful symmetry?"
William Blake - Songs of Experience -1794 England
