# Add leading zeroes in sort script

**URL:** <https://discuss.elastic.co/t/add-leading-zeroes-in-sort-script/318870>\
**Category:** Elasticsearch\
**Tags:** painless\
**Created:** [November 14, 2022, 11:51am UTC](https://discuss.elastic.co/t/add-leading-zeroes-in-sort-script/318870 "2022-11-14T11:51:17Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![undefined\_Undefined](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/undefined_undefined/32/113325_2.png) [@undefined\_Undefined](https://discuss.elastic.co/u/undefined_Undefined)\
**Post date:** [November 14, 2022, 11:51am UTC](https://discuss.elastic.co/t/add-leading-zeroes-in-sort-script/318870/1 "2022-11-14T11:51:17Z")

</div>

Hello, im use elastic 7.10.1 and i need help

I wanna sort my numbers, but i can't use number type, so i decide sort it with leading zeroes

```auto
{
  "sort": {
    "_script": {
      "type": "string",
      "order": "asc",
      "script": {
        "lang": "painless",
        "source": "if(doc.containsKey('pid') && params._source.pid instanceof int)\n{ return '000' + doc['pid'].value.toString()}"
      }
    }
  }
}

```

i want add N leading zeroes, for example:  
number = 7, expected: 007  
number = 21, expected 021  
number = 300, expected 300

decision is  
`'0' * doc['pid'].size()`  
but in Java (or/and painless) i can't multiply str with int, any idea?

---

<div class="post-metadata">

**Author:** ![undefined\_Undefined](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/undefined_undefined/32/113325_2.png) [@undefined\_Undefined](https://discuss.elastic.co/u/undefined_Undefined)\
**Post date:** [November 14, 2022, 3:08pm UTC](https://discuss.elastic.co/t/add-leading-zeroes-in-sort-script/318870/2 "2022-11-14T15:08:54Z")

</div>

okay, i solved it:

```auto
if(doc.containsKey('pid') && params._source.pid instanceof int) {
  return String.format('%010d', new def[] {doc['pid'].value})
}

```

---

<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 12, 2022, 3:09pm UTC](https://discuss.elastic.co/t/add-leading-zeroes-in-sort-script/318870/3 "2022-12-12T15:09:15Z")

</div>

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