You could use something like AtomicUpdateProcessorFactory:
https://lucene.apache.org/solr/guide/7_5/update-request-processors.html#atomicupdateprocessorfactory
Regards,
Alex.
On Wed, 24 Oct 2018 at 04:48, Zahra Aminolroaya <z.aminolro...@gmail.com> wrote:
>
> Does Solr have a partial update like elastic?
>
> Elastic will automatically merge new document with the existing one having
> the same id. For example if the new document has a value for field that it
> was previously null, it will add the value for that field.
>
>
> However, based on what I found, partially update in solr could be applied
> only by directly defining the updated field sth like below:
>
> curl 'localhost:8983/solr/update?commit=true' -H
> 'Content-type:application/json' -d '[{"id":"1","price":{"set":100}}]'
>
> I do not want to define the updated field for Solr by sth like "set". I want
> Solr to automatically merge documents with same id instead of deleting the
> previous document and inserting the new document.
>
> Can Solr do that?
>
>
>
> --
> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
