# Does kv filter exclude keys supports regex match

**URL:** https://discuss.elastic.co/t/does-kv-filter-exclude-keys-supports-regex-match/235732
**Category:** Logstash
**Created:** [June 4, 2020, 10:30am UTC](https://discuss.elastic.co/t/does-kv-filter-exclude-keys-supports-regex-match/235732 "2020-06-04T10:30:08Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![kannan\_raj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kannan_raj/32/63201_2.png) [@kannan\_raj](https://discuss.elastic.co/u/kannan_raj)
#### Post date: [June 4, 2020, 10:30am UTC](https://discuss.elastic.co/t/does-kv-filter-exclude-keys-supports-regex-match/235732/1 "2020-06-04T10:30:08Z")

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Hi Team,

I would like to know that kv filter exclude keys support regex.

```
       kv {
           allow_duplicate_values => false
           field_split => ",\s"
           exclude_keys => ["^[0-9]+"]
   }

```

I have tried this code but didn't help. could you please confirm.

---

<div class="post-metadata">

### Author: ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [June 4, 2020, 1:21pm UTC](https://discuss.elastic.co/t/does-kv-filter-exclude-keys-supports-regex-match/235732/2 "2020-06-04T13:21:19Z")

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> [@kannan\_raj](#):
>
> I would like to know that kv filter exclude keys support regex.

No, it is a simple [string compare](https://github.com/logstash-plugins/logstash-filter-kv/blob/d010bacd2b8cc585251231ed1acbf2e03c1e8759/lib/logstash/filters/kv.rb#L566).

---

<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 2, 2020, 1:21pm UTC](https://discuss.elastic.co/t/does-kv-filter-exclude-keys-supports-regex-match/235732/3 "2020-07-02T13:21:20Z")

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