Query_string, lenient and boolean values

Elastic Stack Elasticsearch
1

I'm running on ES 5.1.2 currently, though I've seen this behavior on 2.x versions as well:

When I have an index with a mapping containing a boolean datatype, it seems that when executing a query_string or simple_query_string query with "lenient": true, all items that have values which are Truthy (as defined as they opposite of Falsey per Boolean datatype) will match.

Example mapping:

{
  "index": {
    "mappings": {
      "properties": {
        "string_val": {
          "type": "string"
        },
        "bool_val": {
          "type": "boolean"
        }
      }
    }
  }
}

Example query_string query:

{
  "query": {
    "query_string": {
      "fields": ["string_val", "bool_val"],
      "lenient": true,
      "query": "An Arbitrary String"
    }
  }
}

This will match all documents for which bool_val has the value true.

I see the dilemma of how to treat such a query with the use of "lenient": true, however, particularly as the note in the above referenced page on boolean datatypes I would have hoped that as of 5.1.1 that query string would match neither true nor false values for the boolean field.

Unfortunately, in my full use case, I cannot restrict the query to particular fields, and thus I need lenient.

Any suggestions?

Thanks.

2

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