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https://issues.apache.org/jira/browse/NIFI-10067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17618802#comment-17618802
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Chris Sampson commented on NIFI-10067:
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Should consider NIFI-3262 as part of the design for this, e.g. allow a more
generic configuration of the {{IndexOperation}} when sending Records to
Elasticsearch.
> Support script in Elasticsearch update operation
> ------------------------------------------------
>
> Key: NIFI-10067
> URL: https://issues.apache.org/jira/browse/NIFI-10067
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Stijn Caerts
> Priority: Major
> Labels: elasticsearch
>
> Right now, all update operations on Elasticsearch with the
> PutElasticsearchRecord/Json processors use [the partial document update
> approach|https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html#_update_part_of_a_document].
> The content of the flow file is added as the {{doc}} in the update request
> by the
> [ElasticSearchClientServiceImpl|https://github.com/apache/nifi/blob/d79b3908360265eb0d50a5ce298a00c3054cdf82/nifi-nar-bundles/nifi-elasticsearch-bundle/nifi-elasticsearch-client-service/src/main/java/org/apache/nifi/elasticsearch/ElasticSearchClientServiceImpl.java#L281].
> Can there also be provided an option to [add a script to the update
> request|https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html#update-api-desc]?
> Using script updates [is supported in the Elasticsearch {{_bulk}}
> API|https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html#bulk-update],
> so it should be possible to add this feature.
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