Union with keys on object without key

Setup

Selector: $['missing','key']

{
  "key": "value",
  "another": "entry"
}

Results

Consensus

[
  "value"
]

Other responses

C (json-glib)

[]

Elixir (jaxon)

[]

Golang (github.com-PaesslerAG-jsonpath) ¹

Not supported

parsing error: $['missing','key']	:1:3 - 1:12 could not parse string: invalid syntax

JavaScript (jsonpath-plus)

[]

Java (com.jayway.jsonpath) ¹ ³

{
  "key": "value"
}

Objective-C (SMJJSONPath) ¹ ³

{
  "key": "value"
}

Perl (JSON-Path)

[]

Python (jsonpath2)

Not supported

line 1:2 token recognition error at: '''
ValueError("line 1:2 token recognition error at: '''")

Raku (JSON-Path)

Not supported

JSON path parse error at position 1

Rust (jsonpath)

Not supported

parsing error

dotNET (Manatee.Json)

Not supported

Expected close bracket. Path up to error: '$'

Errors

Clojure (json-path) ¹

java.lang.Exception object must be an array.

Golang (github.com-oliveagle-jsonpath) ¹

strconv.Atoi: parsing "'missing'": invalid syntax

Footnotes

• ¹ This implementation returns a single value where only one match is possible (instead of an array of a single value).
• ² This implementation returns a specific not found value if no match exists.
• ³ This implementation returns a specific not found value if a query that would regularly return a single match results in no match.