how to search and retrieve data based on of indexed data in elasticsearch

Question

i had indexed the data and elasticsearch allocate it a version. Now I had updated the indexes by update API a new version will be allocate to it. Now I want to search data based on version. For eg: my original indexed data is (version=1) :

  {
     "name":"Lav"
  }

after execution of update query (version=2) :

  {
     "name":"Lav",
     "message":"hello elasticsearch"
  }

Now I want to perform search operation first in version 1 and then in version 2 . How it can be done

mguillermin · Accepted Answer · 2013-06-17 09:35:44Z

1

If I understand well your question, you want to make a search based on the values your document had in its version 1.

In fact, the version field is just an additional information added to the document. ElasticSearch doesn't keep the values of fields for older versions. Therefore, it's not possible to do a search on the data of an older version.

The version field is useful primarily to do some "Optimistic concurrency control" like explained in this blog post.

answered Jun 17, 2013 at 9:35

mguillermin

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2 Comments

Lav Over a year ago

yes i want to search based on version. I am looking for retrieval of data of previous version

mguillermin Over a year ago

What you want to achieve is not possible with the version field provided by ElasticSearch. You will have to implement it "on your own".

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