# About the \_all field and full-text search

**URL:** <https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742>\
**Category:** Elasticsearch\
**Created:** [May 6, 2018, 12:20pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742 "2018-05-06T12:20:07Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![terrasacer](https://avatars.discourse-cdn.com/v4/letter/t/ecd19e/32.png) [@terrasacer](https://discuss.elastic.co/u/terrasacer)\
**Post date:** [May 6, 2018, 12:20pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/1 "2018-05-06T12:20:07Z")

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Hi guys,

You know, \_all field is deprecated. I wonder, how is still full-text search provide by ElasticSearch? The \_all field was providing full-text search.

Is this not that right?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 6, 2018, 12:54pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/2 "2018-05-06T12:54:32Z")

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We don't need anymore to index a fake \_all field to provide the same feature.

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**Author:** ![terrasacer](https://avatars.discourse-cdn.com/v4/letter/t/ecd19e/32.png) [@terrasacer](https://discuss.elastic.co/u/terrasacer)\
**Post date:** [May 6, 2018, 6:35pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/3 "2018-05-06T18:35:13Z")

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> [@dadoonet](#):
>
> We don't need anymore to index a fake \_all field to provide the same feature.

Ok, I understand but how?

Any different field, maybe \_source?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 6, 2018, 7:09pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/4 "2018-05-06T19:09:25Z")

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IIRC it's similar to running a multisearch query on all indexed fields but booleans.

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<div class="post-metadata">

**Author:** ![terrasacer](https://avatars.discourse-cdn.com/v4/letter/t/ecd19e/32.png) [@terrasacer](https://discuss.elastic.co/u/terrasacer)\
**Post date:** [May 7, 2018, 1:54pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/5 "2018-05-07T13:54:09Z")

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> [@dadoonet](#):
>
> IIRC it's similar to running a multisearch query on all indexed fields but booleans.

Thanks @dadoonet for your answers.

In this case, why I need to enable \_all field?

Why do I use custom field?

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 7, 2018, 2:19pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/6 "2018-05-07T14:19:55Z")

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Who told you that you must enable \_all field?

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**Author:** ![terrasacer](https://avatars.discourse-cdn.com/v4/letter/t/ecd19e/32.png) [@terrasacer](https://discuss.elastic.co/u/terrasacer)\
**Post date:** [May 7, 2018, 8:06pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/7 "2018-05-07T20:06:45Z")

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> [@dadoonet](#):
>
> Who told you that you must enable \_all field?

No, I know, it's not mandatory. I mean that there is no valid reason for using the field if I do understand correctly. Similarly custom all field, there is no valid reason for using it. What's provide custom all field when I use it? In which situations, why should I use it?

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 7, 2018, 8:32pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/8 "2018-05-07T20:32:16Z")

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It's deprecated. Just don't use it.

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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:** [June 4, 2018, 8:32pm UTC](https://discuss.elastic.co/t/about-the-all-field-and-full-text-search/130742/9 "2018-06-04T20:32:18Z")

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