How to filter in multi knn query

Elastic Stack Elasticsearch
1

Hi. I'm trying to use filter in multi knn query but getting below error.

It's working with the example from docs but I need to apply pre filter for case when knn is array of many knn queries.

Elasticsearch::Transport::Transport::Errors::InternalServerError: [500] {"error":{"root_cause":[{"type":"illegal_state_exception","reason":"Parent query must not match any docs besides parent filter. Combine them as must (+) and must-not (-) clauses to find a problem doc. docID=56378"}]

2

Welcome!

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