# Effect of cardinality of the fields (stored=false) for purposes of changing text analysis in a linguistic context

**URL:** <https://discuss.elastic.co/t/effect-of-cardinality-of-the-fields-stored-false-for-purposes-of-changing-text-analysis-in-a-linguistic-context/55551>\
**Category:** Elasticsearch\
**Created:** [July 14, 2016, 5:56pm UTC](https://discuss.elastic.co/t/effect-of-cardinality-of-the-fields-stored-false-for-purposes-of-changing-text-analysis-in-a-linguistic-context/55551 "2016-07-14T17:56:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![swamirajamohan](https://avatars.discourse-cdn.com/v4/letter/s/3be4f8/32.png) [@swamirajamohan](https://discuss.elastic.co/u/swamirajamohan)\
**Post date:** [July 14, 2016, 5:56pm UTC](https://discuss.elastic.co/t/effect-of-cardinality-of-the-fields-stored-false-for-purposes-of-changing-text-analysis-in-a-linguistic-context/55551/1 "2016-07-14T17:56:31Z")

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I have a corpus of content (documents) that are multilingual ( around 25 languages) with around 3-4 multi-lingual fields (title, text, description, keywords). We are considering both

1. a language per field approach and
2. a language per index approach

The querying scenario also does not always involve a single language as the querying person is interested in documents in a few languages.

I would like to know the effect of having around 100 fields getting added to a document.

1. Does it cause any memory overhead (field caches etc.?)
2. Is there an impact on the mere presence of a large number of null fields and the impact on the index itself.
3. Do the analyzed, tokenized terms get stored on a per field level?

If I were to go with the multi-index model (language per index) what would be the impact of having 200 million+ docs distributed over 25 indexes, of which a few indexes would have the bulk of the documents (70%) .

Which would be a preferred model. The index/language model avoids having to craft queries across different fields across languages, and seems more easily manageable.

Can anyone throw some light on this?

Thanks  
Swami

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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, 10:35pm UTC](https://discuss.elastic.co/t/effect-of-cardinality-of-the-fields-stored-false-for-purposes-of-changing-text-analysis-in-a-linguistic-context/55551/2 "2017-07-05T22:35:28Z")

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