# Remove results with same id from Elasticsearch search result

**URL:** <https://discuss.elastic.co/t/remove-results-with-same-id-from-elasticsearch-search-result/255365>\
**Category:** Elasticsearch\
**Created:** [November 13, 2020, 4:22pm UTC](https://discuss.elastic.co/t/remove-results-with-same-id-from-elasticsearch-search-result/255365 "2020-11-13T16:22:48Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![philippd](https://avatars.discourse-cdn.com/v4/letter/p/958977/32.png) [@philippd](https://discuss.elastic.co/u/philippd)\
**Post date:** [November 13, 2020, 4:22pm UTC](https://discuss.elastic.co/t/remove-results-with-same-id-from-elasticsearch-search-result/255365/1 "2020-11-13T16:22:48Z")

</div>

Hi,

I just joined the forums and would like to aks you for a little help with the following question I am not able to answer reading the docs:

Let's assume we have a search result with 3 documents. Two of them share a key attribute (product-ID or similar).

Is it possible to remove "doubled" documents from the search result by using Elasticsearch, so that only 2 documents would be returned in that case? I don't want to implement this in application logic as I would still like to use pagination, aggregation, etc. It does not matter which of the two documents with the same id is removed.

This would be the example in Elasticsearch:

```auto
{
  "mappings": {
    "properties": {
      "name": { "type": "text" },  
      "articleNumber": { "type": "keyword" }
    }
  }
}

PUT /tmp_pd_articles/_doc/1
{
  "name": "My Book 1",
  "articleNumber": "A9781"
}

PUT /tmp_pd_articles/_doc/2
{
  "name": "My Book 1 (with some other title)",
  "articleNumber": "A9781"
}

PUT /tmp_pd_articles/_doc/3
{
  "name": "My Book 2",
  "articleNumber": "A9782"
}

GET /tmp_pd_articles/_search
{
  "query": { "match_all": {} }

}

```

The goal is to write a query that returns only two articles instead of all three:  
#1 ("A9781", "My Book 1") **OR**  
#2 ("A9781", "My Book 1 (with some other title)")

**AND**  
#3 ("A9782", "My Book 2")

This reduction should be applied because #1 and #2 share the same productNumber "A9781". I wonder whether there is a Elasticsearch query to accomplish this goal.

Thank you very much for your help in advance,  
Philipp

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [November 13, 2020, 4:37pm UTC](https://discuss.elastic.co/t/remove-results-with-same-id-from-elasticsearch-search-result/255365/2 "2020-11-13T16:37:43Z")

</div>

Welcome! You can run a terms aggregation on the `articleNumber` and add a `top_hits` agg inside.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 11, 2020, 4:37pm UTC](https://discuss.elastic.co/t/remove-results-with-same-id-from-elasticsearch-search-result/255365/3 "2020-12-11T16:37:54Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.