Query field doesn't exist or have a special value


I'm using ELK 6.8.2.

I have a set of data where the field "system" can either have a value or doesn't exist at all.

The queries NOT _exists_: system and system: value works fine. However, as soon as I try to combine them at a single query NOT _exists_: system OR system: value, ES returns 0 results.

What's wrong with the query and how can I get the desired results?

When using multiple boolean operators, it's a good idea to use parentheses as these operators do not honor the usual precedence rules. Try writing your query like this:

(NOT _exists_: system) OR (system: value)

Thanks, it works!

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