Mapping recommendations

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1

Hi, I have several question regarding ES mapping.

  1. Should all the fields of the document be included in the mapping? or only those that i will search on?
  2. Are fields without mapping even searchable? if they are, how much slower to search on those field compared to mapped ones?

Thanks

2

If you use dynamic mapping they will default to being searchable.

If you don't want that, use static mapping.

3

Thanks for your reply

So, correct me if i'm wrong, but the whole purpose of the mapping is to make the field searchable.
If i have fields that i don't to search on (only to retrieve them with the query) then there's no reason to create mapping for them, is that correct?

4

A field has to be mapped. In that mapping you can define it to be searchable or not.

If you don't explicitly map a field, and you don't have strict mapping set, then it will have a dynamic mapping applied to it which will make it searchable.

So either way it will be mapped.

5

OK, I get it now
Thank you!

6

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