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?
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