# Ingest-attachment: case insensitive search **URL:** \ **Category:** Elasticsearch\ **Created:** [November 15, 2017, 11:56am UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737 "2017-11-15T11:56:35Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Vikentyi](https://avatars.discourse-cdn.com/v4/letter/v/41988e/32.png) [@Vikentyi](https://discuss.elastic.co/u/Vikentyi)\ **Post date:** [November 15, 2017, 11:56am UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/1 "2017-11-15T11:56:35Z")
Hello. I have a requirement to perform search in file content. Everything is ok. But is it possible to implement case insensitive search in file content? I've read a lot and did't find an answer. ---
**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:** [November 15, 2017, 12:13pm UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/2 "2017-11-15T12:13:08Z")
It’s a question of analyzer that you apply to the field you extract data to with ingest-attachment. Not related to ingest-attachment itself. By default text fields don’t care about case. What is your problem ? ---
**Author:** ![Vikentyi](https://avatars.discourse-cdn.com/v4/letter/v/41988e/32.png) [@Vikentyi](https://discuss.elastic.co/u/Vikentyi)\ **Post date:** [December 4, 2017, 3:30pm UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/3 "2017-12-04T15:30:08Z")
ok, I have the following index configuration settings: ``` { "index": { "analysis": { "filter": { "swedish_stop": { "type": "stop", "stopwords": "_none_" }, "swedish_stemmer": { "type": "stemmer", "language": "swedish" } }, "analyzer": { "any": { "type": "custom", "tokenizer": "standard" }, "any_lowercase": { "type": "custom", "tokenizer": "standard", "filter": [ "lowercase" ] }, "swedish": { "type": "custom", "tokenizer": "standard", "filter": [ "swedish_stop", "swedish_stemmer" ] }, "swedish_lowercase": { "type": "custom", "tokenizer": "standard", "filter": [ "lowercase", "swedish_stop", "swedish_stemmer" ] } }, "normalizer": { "lowercase_normalizer": { "type": "custom", "char_filter": [], "filter": [ "lowercase" ] } } } } } ``` Ingest attachment: ``` { "attachment": { "description": "Extract attachment information", "processors": [ { "attachment": { "field": "payload", "indexed_chars": "-1", "properties": [ "content", "content_type", "content_length", "title", "language" ] } } ] } } ``` For my index I am using the following mapping: > ``` > { > "test": { > "mappings": { > "_type": { > "properties": { > "attachment": { > "properties": { > "content": { > "type": "text", > "fields": { > "keyword": { > "type": "keyword", > "ignore_above": 256 > } > } > }, > "content_length": { > "type": "long" > }, > "content_type": { > "type": "text", > "fields": { > "keyword": { > "type": "keyword", > "ignore_above": 256 > } > } > }, > "language": { > "type": "text", > "fields": { > "keyword": { > "type": "keyword", > "ignore_above": 256 > } > } > }, > "title": { > "type": "text", > "fields": { > "keyword": { > "type": "keyword", > "ignore_above": 256 > } > } > } > } > }, > "payload": { > "type": "text", > "fields": { > "any_lowercase": { > "type": "text", > "analyzer": "any_lowercase" > } > }, > "analyzer": "any" > } > } > } > } > } > } > > ``` 'payload' is a base64 encoded binary. Is it possible to store only this encoded binary without content? Or vice versa? And what is the maximum file size for indexing? ---
**Author:** ![Vikentyi](https://avatars.discourse-cdn.com/v4/letter/v/41988e/32.png) [@Vikentyi](https://discuss.elastic.co/u/Vikentyi)\ **Post date:** [December 6, 2017, 11:44am UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/4 "2017-12-06T11:44:45Z")
Also I have one question more: if I don't want to have encoded content file and remove my field 'payload' from processor - so how can I use analyzer for lowercase? What should I send as request? ---
**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:** [December 6, 2017, 4:00pm UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/5 "2017-12-06T16:00:43Z")
> Is it possible to store only this encoded binary without content? Yes. But you won't be able to search for the content then. And it's not recommended to store blobs in elasticsearch. > Or vice versa? Yes. You can add a `remove` processor in your ingest pipeline. > And what is the maximum file size for indexing? IIRC by default attachment processor only extracts the first 10000 characters. That being said it might be a bad idea to send as a JSON document a very huge file, like a mp4 video file of 10gb if you only want to index some metadata like the filename or what have you. It will overload your node memory. ---
**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:** [December 6, 2017, 4:01pm UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/6 "2017-12-06T16:01:56Z")
> Also I have one question more: if I don't want to have encoded content file and remove my field 'payload' from processor - so how can I use analyzer for lowercase? What should I send as request? You apply the analyzer not on the `payload` field but on `attachment.content` field where the text is actually extracted to. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 3, 2018, 4:02pm UTC](https://discuss.elastic.co/t/ingest-attachment-case-insensitive-search/107737/7 "2018-01-03T16:02:13Z")
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