Script vs Document for partial update

Elastic Stack Elasticsearch
1

I saw there are two ways to do partial update. One is via doc parameter and one via scripts. https://www.elastic.co/guide/en/elasticsearch/guide/master/partial-updates.html

I like to know which one is better. What are the advantages and disadvantages of each approach?

Specifically for doing something like https://github.com/thinkaurelius/titan/blob/titan10/titan-es/src/main/java/com/thinkaurelius/titan/diskstorage/es/ElasticSearchIndex.java#L650 will document update work better than script update?

2

TO update the document Elasticsearch follows delete and index the document.

So there are two ways as you mentioned partial update using scripts as well as partial update using documents.

I would consider the first one i.e. using scripts which is we can update based on condition where as using document we may concentrate or stick on to that document.