Elasticsearch: 6.2.4 "script_score query does not support [params]"

[yunmengxin]

POST /bookdb_index/book/_search
{
"query": {
"function_score": {
"query": {
"multi_match": {
"query": "search engine",
"fields": [
"title",
"summary"
]
}
},
"functions": [
{
"script_score": {
"params": {
"threshold": "2015-07-30"
},
"script": "publish_date = doc['publish_date'].value; num_reviews = doc['num_reviews'].value; if (publish_date > Date.parse('yyyy-MM-dd', threshold).getTime()) { return log(2.5 + num_reviews) }; return log(1 + num_reviews);"}
}
]
}
},
"_source": [
"title",
"summary",
"publish_date",
"num_reviews"
]
}

[colings86]

In order to use params with your script you need to specify your script field as a JSON object in the format detailed here: https://www.elastic.co/guide/en/elasticsearch/reference/6.2/modules-scripting-using.html

[yunmengxin]

thx

[carlos-olr]

@chroje Can you post the correction?

[hanxirui]

@chroje Can you post the correction?

[DanielVF]

@hanxirui, @carlos-olr

Before, with this error:

script_score: {
  params: { 'foo': 'bar'},
  script: '...'
}

After, correct:

script_score: {
  script: {
    params: { 'foo': 'bar'},
    source: '...'
  }
}

Basically, the params have to be underneath the script object, not under the script_score object. In order to do this, you need to switch to using the long form of the script object.

And a big thanks to @colings86, since I was beating my head today against this very error.

[ronakvora]

Also, in case anyone else runs into this issue, the accessing the param foo above in source is done via params.foo