I have a sample painless which compares two static dates. If I run it inside <

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Script evaluated differently in LTR? about elasticsearch-learning-to-rank HOT 3 CLOSED

o19s commented on May 27, 2024

Script evaluated differently in LTR?

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Comments (3)

softwaredoug commented on May 27, 2024

@peterdm

A script query doesn't actually return a score (it always returns 1 or a 0). I think this is similar to the other issue we discussed. A function_score_query appears to work

GET /test/empty/_search?explain=true
{
   "query": {
      "match_all": {}
   },
   "script_fields": {
      "days_between": {
         "script": {
            "params": {
               "search_timestamp": "2017-03-23T00:00:00.000Z",
               "compare_to": "2017-03-18T04:34:15.606Z"
            },
            "lang": "painless",
            "inline": "return ChronoUnit.DAYS.between(Instant.parse(params.compare_to), Instant.parse(params.search_timestamp))"
         }
      }
   },
   "rescore": {
      "query": {
         "rescore_query": {
            "ltr": {
               "model": {
                  "stored": "dummy"
               },
               "features": [
                  {
                     "function_score": {
                        "_name": "days_between",
                        "functions": [
                           {
                              "script_score": {
                                 "script": {
                                    "params": {
                                       "search_timestamp": "2017-03-23T00:00:00.000Z",
                                       "compare_to": "2017-03-18T04:34:15.606Z"
                                    },
                                    "lang": "painless",
                                    "inline": "return ChronoUnit.DAYS.between(Instant.parse(params.compare_to), Instant.parse(params.search_timestamp))"
                                 }
                              }
                           }
                        ]
                     }
                  }
               ]
            }
         }
      }
   }
}

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softwaredoug commented on May 27, 2024

@peterdm safe to close?

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