Any suggestion?

On Thu, Jul 11, 2019 at 3:03 PM Wei <weiwan...@gmail.com> wrote:

> Hi,
>
> I have a question regarding function query that operates on multi-value
> fields.  For the following field:
>
> <field name=rgbcolor type="string" indexed="true" stored="true"
> multivalued="true"/>
>
>  Each value is a hex string representation of RGB value.  for example
> there are 3 values indexed
>
> #FF00FF    - C1
> #EE82EE   - C2
> #DA70D6   - C3
>
> How would I write a function query that operates on all values of the
> field?  Given color S in query, how to calculate the similarities between
> S and C1/C2/C3 and find which one is the closest?
> I checked https://lucene.apache.org/solr/guide/6_6/function-queries.html but
> didn't see an example.
>
> Thanks,
> Wei
>

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