# Best way to build a document with a fixed part and a variable part **URL:** \ **Category:** Elasticsearch\ **Created:** [March 15, 2019, 8:28am UTC](https://discuss.elastic.co/t/best-way-to-build-a-document-with-a-fixed-part-and-a-variable-part/172482 "2019-03-15T08:28:58Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![sebastienf](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@sebastienf](https://discuss.elastic.co/u/sebastienf)\ **Post date:** [March 15, 2019, 8:28am UTC](https://discuss.elastic.co/t/best-way-to-build-a-document-with-a-fixed-part-and-a-variable-part/172482/1 "2019-03-15T08:28:58Z")
Hi Everyone, I aim to ingest datas in ES documents. My datas are pretty much like this :: fixed\_field1;fixed\_field2;...;variable\_field1;variable\_field2;... And then, I want to build ES documents like this :: { "fixed\_field1\_label":"fixed\_field1", "fixed\_field2\_label":"fixed\_field2", ..., "variable\_field1\_label":"variable\_field1", "variable\_field2\_label":"variable\_field2", ... } The fixed part is very very common whereas the variable part is very unique. I was wondering, in order to save space storage, if there was an approach to externalize the fixed part ? I saw things such as "nested" or "has\_child" or "has\_parent", but I fear that this make impossible querying throught Kibana or Grafana. Indeed, my documents must be readable by those kind of tools... Thanks for your help 🙂 ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 12, 2019, 8:29am UTC](https://discuss.elastic.co/t/best-way-to-build-a-document-with-a-fixed-part-and-a-variable-part/172482/2 "2019-04-12T08:29:30Z")
Closed on April 12, 2019, 8:29am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.