# Find data with long when is null

**URL:** <https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195>\
**Category:** Elasticsearch\
**Created:** [June 8, 2018, 8:17pm UTC](https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195 "2018-06-08T20:17:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![TomTom](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tomtom/32/3676_2.png) [@TomTom](https://discuss.elastic.co/u/TomTom)\
**Post date:** [June 8, 2018, 8:17pm UTC](https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195/1 "2018-06-08T20:17:47Z")

</div>

How is possible find a data when a long value is null?

I try to do this, but an error occurs:

```
{
   "query":{
      "bool":{
         "must":[
            {
               "term":{
                  "account":123
               }
            },
            {
               "term":{
                  "codoperator":null
               }
            }
         ]
      }
   },
   "size":10000,
   "sort":{
      "name":{
         "order":"asc"
      }
   }
}

```

This is the error:

```
{
   "error":{
      "root_cause":[
         {
            "type":"illegal_argument_exception",
            "reason":"field name is null or empty"
         }
      ],
      "type":"illegal_argument_exception",
      "reason":"field name is null or empty"
   },
   "status":400
}
```

---

<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:** [June 8, 2018, 8:35pm UTC](https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195/2 "2018-06-08T20:35:21Z")

</div>

Try a bool query with must\_not clause containing an exist query.

That should work

---

<div class="post-metadata">

**Author:** ![TomTom](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tomtom/32/3676_2.png) [@TomTom](https://discuss.elastic.co/u/TomTom)\
**Post date:** [June 8, 2018, 8:56pm UTC](https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195/3 "2018-06-08T20:56:07Z")

</div>

Thanks @dadoonet, the must\_not work.

The final code:

```
{
   "query":{
      "bool":{
         "must":[
            {
               "term":{
                  "account":123
               }
            }
         ],
         "must_not":{
            "range":{
               "codoperator":{
                  "gte":1
               }
            }
         }
      }
   },
   "size":10000,
   "sort":{
      "name":{
         "order":"asc"
      }
   }
}
```

---

<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:** [July 6, 2018, 8:56pm UTC](https://discuss.elastic.co/t/find-data-with-long-when-is-null/135195/4 "2018-07-06T20:56:11Z")

</div>

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