Performance difference between _source and fields with store

imaravin · June 27, 2017, 2:18pm

Hi,
I don't have much experience in ES. When I heard about _source field storing entire document as JSON,
I tried to store the source as JSON objects inside Lucene Document. While retrieving back. I found the time taken for JSON construction is more than the disk read time. Still, what is the advantage in the _source field?.
We can store all the fields in the document to provide better indexing performance.

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Performance difference between _source and fields with store

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