Search in all attributes except one

Elastic Stack Elasticsearch
1

Hello lovely people,

is there some way for a query_string - Query to search in ALL attributes EXCEPT one? Or can I use another type of query to search for documents matching a search term in all attributes except one?

Ive got this query

GET _all/_search
{
  "query": {
    "query_string": {
      "query": "*searchterm*"
    }
  }
}

The ES documents all have different attributes. If there is any match in any attribute (except one very specific attribute) than the ES document should be returned.

The problem is: I dont know which attributes are present for each ES document. I could be just one (“file.filename”) or it could be multiple (parsed content or metadata from PDFs, images, etc…). So I cant use the “fields” key for “query_string”.

Thanks in advance!