# ES - Lucene indexes but stored in RDBMS - Possible?

**URL:** <https://discuss.elastic.co/t/es-lucene-indexes-but-stored-in-rdbms-possible/54548>\
**Category:** Elasticsearch\
**Created:** [July 1, 2016, 2:56pm UTC](https://discuss.elastic.co/t/es-lucene-indexes-but-stored-in-rdbms-possible/54548 "2016-07-01T14:56:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ilyasjaan](https://avatars.discourse-cdn.com/v4/letter/i/9fc29f/32.png) [@ilyasjaan](https://discuss.elastic.co/u/ilyasjaan)\
**Post date:** [July 1, 2016, 2:56pm UTC](https://discuss.elastic.co/t/es-lucene-indexes-but-stored-in-rdbms-possible/54548/1 "2016-07-01T14:56:52Z")

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Hi,

I can see ES lucene in back-end that is file based storage on a filesystem.

Is there any possibility to store the documents in a database in CLOB or BLOB fields. Any plugin available?

Having such option gives out of the box backups facilities through existing standard ways of backups etc.

Thanks  
Ilyas

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**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\
**Post date:** [July 1, 2016, 3:08pm UTC](https://discuss.elastic.co/t/es-lucene-indexes-but-stored-in-rdbms-possible/54548/2 "2016-07-01T15:08:36Z")

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> [@ilyasjaan](#):
>
> Is there any possibility to store the documents in a database in CLOB or BLOB fields. Any plugin available?

No. Lucene's got to memory map the files or it'd be super inefficient. While it might be possible to get something similar out of a BLOB field it'd be an amazing amount of effort.

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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 5, 2017, 10:38pm UTC](https://discuss.elastic.co/t/es-lucene-indexes-but-stored-in-rdbms-possible/54548/3 "2017-07-05T22:38:54Z")

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