I have a nested field called 'metadata' in my index with various fields inside.
For some reason filtering in Kibana does not work.
I have tried various data types but even 'exists' doesn't work correctly.
How has your nested field been mapped in the index? Is it of type object or of type nested? In the latter case, there is no support in Kibana, yet, for the required nested queries and nested aggregations.
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