# Understanding Index Analyzers

**URL:** <https://discuss.elastic.co/t/understanding-index-analyzers/9045>\
**Category:** Elasticsearch\
**Created:** [September 17, 2012, 8:40pm UTC](https://discuss.elastic.co/t/understanding-index-analyzers/9045 "2012-09-17T20:40:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Yooz](https://avatars.discourse-cdn.com/v4/letter/y/13edae/32.png) [@Yooz](https://discuss.elastic.co/u/Yooz)\
**Post date:** [September 17, 2012, 8:40pm UTC](https://discuss.elastic.co/t/understanding-index-analyzers/9045/1 "2012-09-17T20:40:45Z")

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Hi all,

We recently ran into an issue where querying for common words (and, or,  
not, are, etc) with a text phrase query was necessary. Unfortunately, we  
used the default analyzers and presumably removed all of these [english]  
stop words. (Stop Token Filter). Is there any way to query for the common  
words with the current index, or do we have to reindex our data with the  
correct analyzers configured (i.e. simple analyzer).

Thanks!  
--young

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**Author:** ![zkidkid](https://avatars.discourse-cdn.com/v4/letter/z/fbc32d/32.png) [@zkidkid](https://discuss.elastic.co/u/zkidkid)\
**Post date:** [September 18, 2012, 3:16am UTC](https://discuss.elastic.co/t/understanding-index-analyzers/9045/2 "2012-09-18T03:16:50Z")

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Hi,  
I think you could try with lowercase tokenizer.

On Tuesday, September 18, 2012 3:40:46 AM UTC+7, Yooz wrote:

> Hi all,
> 
> We recently ran into an issue where querying for common words (and, or,  
> not, are, etc) with a text phrase query was necessary. Unfortunately, we  
> used the default analyzers and presumably removed all of these [english]  
> stop words. (Stop Token Filter). Is there any way to query for the common  
> words with the current index, or do we have to reindex our data with the  
> correct analyzers configured (i.e. simple analyzer).
> 
> Thanks!  
> --young

--

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**Author:** ![Chris\_Male](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/chris_male/32/2607_2.png) [@Chris\_Male](https://discuss.elastic.co/u/Chris_Male)\
**Post date:** [September 18, 2012, 4:16am UTC](https://discuss.elastic.co/t/understanding-index-analyzers/9045/3 "2012-09-18T04:16:48Z")

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Hi,

Unfortunately if you have removed stop words then you will need to re-index  
to get them back.

On Tuesday, September 18, 2012 8:40:46 AM UTC+12, Yooz wrote:

> Hi all,
> 
> We recently ran into an issue where querying for common words (and, or,  
> not, are, etc) with a text phrase query was necessary. Unfortunately, we  
> used the default analyzers and presumably removed all of these [english]  
> stop words. (Stop Token Filter). Is there any way to query for the common  
> words with the current index, or do we have to reindex our data with the  
> correct analyzers configured (i.e. simple analyzer).
> 
> Thanks!  
> --young

--

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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:** [July 6, 2017, 3:12am UTC](https://discuss.elastic.co/t/understanding-index-analyzers/9045/4 "2017-07-06T03:12:33Z")

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