If I have a group of documents and I want to filter on a category, it is fairly straightforward. I just create a Field that contains the category and filter on it.
However, what if I want the field "category" to have multiple possible values? Is there a known best way to filter on that?
I imagine it is possible to "hack" it by, say, creating a field with value: |category1|category2|category3| etc.
And then query "|category1|"
I was wondering if there was a better way.
Simply add multiple (probably Keyword) fields with the same name. Lucene supports this nicely.
Erik
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