# Why is this filer not working

**URL:** <https://discuss.elastic.co/t/why-is-this-filer-not-working/89761>\
**Category:** Kibana\
**Created:** [June 16, 2017, 6:33pm UTC](https://discuss.elastic.co/t/why-is-this-filer-not-working/89761 "2017-06-16T18:33:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ppierce01](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ppierce01/32/18510_2.png) [@ppierce01](https://discuss.elastic.co/u/ppierce01)\
**Post date:** [June 16, 2017, 6:33pm UTC](https://discuss.elastic.co/t/why-is-this-filer-not-working/89761/1 "2017-06-16T18:33:40Z")

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I am attempting to use this as a filter sector:[1 to 3]. sector is a text item within my index. All documentation I have read says this should work. However, when I attempt to apply the filter I get this error:

Discover: parse\_exception: Encountered " \<RANGE\_GOOP\> "3 "" at line 1, column 46. Was expecting one of: "]" ... "}" ...

parse\_exception: Encountered " \<RANGE\_GOOP\> "3 …

Can anyone explain what is going on?

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**Author:** ![LeeDr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leedr/32/9289_2.png) [@LeeDr](https://discuss.elastic.co/u/LeeDr)\
**Post date:** [June 19, 2017, 6:05pm UTC](https://discuss.elastic.co/t/why-is-this-filer-not-working/89761/2 "2017-06-19T18:05:29Z")

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Hi Perry,

You need to use uppercase `TO`;

I just tried it with a text field which contains https response codes and it seems to be working OK.

 ![](https://us1.discourse-cdn.com/elastic/original/3X/3/d/3dbaf77cb135e365cd4a7fddec03a3003659c00a.png)

Regards,  
Lee

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<div class="post-metadata">

**Author:** ![ppierce01](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ppierce01/32/18510_2.png) [@ppierce01](https://discuss.elastic.co/u/ppierce01)\
**Post date:** [June 19, 2017, 6:47pm UTC](https://discuss.elastic.co/t/why-is-this-filer-not-working/89761/3 "2017-06-19T18:47:09Z")

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Thanks LeeDr that solved my problem. I keep forgetting it is case sensitive

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 17, 2017, 6:47pm UTC](https://discuss.elastic.co/t/why-is-this-filer-not-working/89761/4 "2017-07-17T18:47:25Z")

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Closed on July 17, 2017, 6:47pm UTC

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