# How to update a field data of all doc in an index in elasticsearch

**URL:** <https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973>\
**Category:** Elasticsearch\
**Created:** [May 31, 2018, 6:12am UTC](https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973 "2018-05-31T06:12:45Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![kish](https://avatars.discourse-cdn.com/v4/letter/k/71e660/32.png) [@kish](https://discuss.elastic.co/u/kish)\
**Post date:** [May 31, 2018, 6:12am UTC](https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973/1 "2018-05-31T06:12:45Z")

</div>

I need to update a 'Decision" filed in tdcorescalio index . But i geeting belwo error.

Mapping:

```
{"tdcorescaleio":{"mappings":{"scaleio":{"properties":{"Decision":{"type":"keyword"}}},"tdcorescaleio":{"properties":{"Decision":{"type":"keyword"},"date":{"type":"date"},"doc":{"properties":{"Decision":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}}},"query":{"properties":{"match_all":{"type":"object"}}},"size":{"type":"long"},"sort":{"properties":{"date":{"properties":{"order":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}}}}}}}}}}  

```

Error:

```
curl -X POST "localhost:9200/tdcorescaleio/tdcorescaleio/_update_by_query?pretty" -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
    "doc": { "Decision": "NA" }
}'
{
  "error" : {
    "root_cause" : [
      {
        "type" : "parsing_exception",
        "reason" : "Unknown key for a START_OBJECT in [doc].",
        "line" : 4,
        "col" : 12
      }
    ],
    "type" : "parsing_exception",
    "reason" : "Unknown key for a START_OBJECT in [doc].",
    "line" : 4,
    "col" : 12
  },
  "status" : 400
}

```

Let me know the exact query to update a particular field in all docs

---

<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:** [May 31, 2018, 6:27am UTC](https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973/2 "2018-05-31T06:27:47Z")

</div>

As written in [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update-by-query.html), do something like:

```
PUT _ingest/pipeline/set-foo
{
  "description" : "sets foo",
  "processors" : [ {
      "set" : {
        "field": "foo",
        "value": "bar"
      }
  } ]
}
POST twitter/_update_by_query?pipeline=set-foo
```

---

<div class="post-metadata">

**Author:** ![kish](https://avatars.discourse-cdn.com/v4/letter/k/71e660/32.png) [@kish](https://discuss.elastic.co/u/kish)\
**Post date:** [May 31, 2018, 11:23am UTC](https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973/4 "2018-05-31T11:23:02Z")

</div>

Thanks it is working....

---

<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:** [June 28, 2018, 11:23am UTC](https://discuss.elastic.co/t/how-to-update-a-field-data-of-all-doc-in-an-index-in-elasticsearch/133973/5 "2018-06-28T11:23:06Z")

</div>

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