# How to get previous indexed document in painless script

**URL:** <https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966>\
**Category:** Elasticsearch\
**Created:** [November 2, 2020, 2:15am UTC](https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966 "2020-11-02T02:15:22Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Adriann](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/adriann/32/77780_2.png) [@Adriann](https://discuss.elastic.co/u/Adriann)\
**Post date:** [November 2, 2020, 2:15am UTC](https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966/1 "2020-11-02T02:15:22Z")

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Hello,

I want to access previous index document using painless script to compute value difference between document for my visualization.

I want to count network utilization using data forwarded via logstash snmp.

Is It even possible?

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<div class="post-metadata">

**Author:** ![Adriann](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/adriann/32/77780_2.png) [@Adriann](https://discuss.elastic.co/u/Adriann)\
**Post date:** [November 4, 2020, 8:58pm UTC](https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966/2 "2020-11-04T20:58:47Z")

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UP..

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<div class="post-metadata">

**Author:** ![Adriann](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/adriann/32/77780_2.png) [@Adriann](https://discuss.elastic.co/u/Adriann)\
**Post date:** [November 5, 2020, 3:12am UTC](https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966/3 "2020-11-05T03:12:55Z")

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Ok I did that with timelion I did not knew that this exist.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/0/5/059a9707bed8340327475782db9f417c505bf5eb.png)

```
.es(index=network-devices*,
    timefield=@timestamp,
    metric=max:cisco.device.system.interface.ifInOctets,split=cisco.device.system.interface.ifName.keyword:150)
  .derivative().divide(.es(index=network-devices*,
    timefield=@timestamp,
    metric=max:cisco.device.system.interface.ifSpeed))
    .label("[$1] IN", "^.* > cisco.device.system.interface.ifName.keyword:(\S+) > .*").multiply(1)
        .if(lt,0.0001,null),
.es(index=network-devices*,
    timefield=@timestamp,
    metric=max:cisco.device.system.interface.ifOutOctets,split=cisco.device.system.interface.ifName.keyword:150)
  .derivative().divide(.es(index=network-devices*,
    timefield=@timestamp,
    metric=max:cisco.device.system.interface.ifSpeed))
    .multiply(1).label("[$1] OUT", "^.* > cisco.device.system.interface.ifName.keyword:(\S+) > .*")
    .if(lt,0.0001,null)
```

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<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 3, 2020, 3:12am UTC](https://discuss.elastic.co/t/how-to-get-previous-indexed-document-in-painless-script/253966/4 "2020-12-03T03:12:56Z")

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Closed on December 3, 2020, 3:12am UTC

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