# What happens when the document data has special characters like "party-planning" or "Michelle\_obama" ? I see that Elasticsearch includes them in the hit. how do we ignore such documents? Is Elasticsearch case sensitive?

**URL:** <https://discuss.elastic.co/t/what-happens-when-the-document-data-has-special-characters-like-party-planning-or-michelle-obama-i-see-that-elasticsearch-includes-them-in-the-hit-how-do-we-ignore-such-documents-is-elasticsearch-case-sensitive/325901>\
**Category:** Elasticsearch\
**Created:** [February 19, 2023, 1:17am UTC](https://discuss.elastic.co/t/what-happens-when-the-document-data-has-special-characters-like-party-planning-or-michelle-obama-i-see-that-elasticsearch-includes-them-in-the-hit-how-do-we-ignore-such-documents-is-elasticsearch-case-sensitive/325901 "2023-02-19T01:17:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pathaniaamn](https://avatars.discourse-cdn.com/v4/letter/p/958977/32.png) [@pathaniaamn](https://discuss.elastic.co/u/pathaniaamn)\
**Post date:** [February 19, 2023, 1:17am UTC](https://discuss.elastic.co/t/what-happens-when-the-document-data-has-special-characters-like-party-planning-or-michelle-obama-i-see-that-elasticsearch-includes-them-in-the-hit-how-do-we-ignore-such-documents-is-elasticsearch-case-sensitive/325901/1 "2023-02-19T01:17:32Z")

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Two questions:

1. What happens when the document data has special characters like "party-planning" or "Michelle\_obama" ? I see that Elasticsearch includes them in the hit. how do we ignore such documents?
2. Is Elasticsearch case sensitive?

Reference: Beginner’s Crash Course to Elastic Stack - Part 3

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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:** [March 19, 2023, 1:18am UTC](https://discuss.elastic.co/t/what-happens-when-the-document-data-has-special-characters-like-party-planning-or-michelle-obama-i-see-that-elasticsearch-includes-them-in-the-hit-how-do-we-ignore-such-documents-is-elasticsearch-case-sensitive/325901/2 "2023-03-19T01:18:26Z")

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