# Performance of OR filter

**URL:** <https://discuss.elastic.co/t/performance-of-or-filter/228149>\
**Category:** Elasticsearch\
**Created:** [April 15, 2020, 3:02pm UTC](https://discuss.elastic.co/t/performance-of-or-filter/228149 "2020-04-15T15:02:59Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![DreamStack](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@DreamStack](https://discuss.elastic.co/u/DreamStack)\
**Post date:** [April 15, 2020, 3:03pm UTC](https://discuss.elastic.co/t/performance-of-or-filter/228149/1 "2020-04-15T15:03:00Z")

</div>

Hello,

I'm having some issue with a part of my query leading to bad performance (about a 2-3x difference). Maybe someone can suggest an improvement. I already tried converting them over to a bool/match query, but seems to make no significant difference.

```auto
{
                                "query_string": {
                                    "query": "Module1 OR Module2 OR Module3 OR Module4 OR Module5 OR Module6 ORModule7",
                                    "fields": [
                                        "modules"
                                    ]
                                }
                            }

```

The ES docs just contain the module strings.

Thanks in advance.

---

<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:** [May 13, 2020, 3:14pm UTC](https://discuss.elastic.co/t/performance-of-or-filter/228149/2 "2020-05-13T15:14:36Z")

</div>

Closed on May 13, 2020, 3:14pm UTC

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