Error while searching over dense vector

Elastic Search
1

Hello ,
while doing query on my embedding field with this mapping :slight_smile:

   "keywordsEmbedding": {
          "type": "dense_vector",
          "dims": 1536
        },

and this query :

GET /my_index/_search
{
"query": {
            "script_score": {
                "query": {
                    "bool": {
                        "filter": []
                    }
                },
                "script": {
                    "source": "cosineSimilarity(params.query_vector, doc['keywordsEmbedding'])",
                    "lang": "painless",
                    "params": {
                        "query_vector": [
            -0.010962439,
            -0.0069970214,

I ge the following error :

{
  "error": {
    "root_cause": [
      {
        "type": "script_exception",
        "reason": "runtime error",
        "script_stack": [
          "cosineSimilarity(params.query_vector, doc['keywordsEmbedding'])",
          "                                         ^---- HERE"
        ],
        "script": "cosineSimilarity(params.query_vector, doc['keywordsEmbedding'])",
        "lang": "painless",
        "position": {
          "offset": 41,
          "start": 0,
          "end": 63
        }
      }
    ],
    "type": "search_phase_execution_exception",
    "reason": "all shards failed",
    "phase": "query",
    "grouped": true,
    "failed_shards": [
      {
        "shard": 0,
        "index": "my_index",
        "node": "tpn_abVVSPK-DGay7NJU8w",
        "reason": {
          "type": "script_exception",
          "reason": "runtime error",
          "script_stack": [
            "cosineSimilarity(params.query_vector, doc['keywordsEmbedding'])",
            "                                         ^---- HERE"
          ],
          "script": "cosineSimilarity(params.query_vector, doc['keywordsEmbedding'])",
          "lang": "painless",
          "position": {
            "offset": 41,
            "start": 0,
            "end": 63
          },
          "caused_by": {
            "type": "class_cast_exception",
            "reason": "cannot implicitly cast def [org.elasticsearch.index.mapper.vectors.DenseVectorScriptDocValues] to java.lang.String"
          }
        }
      }
    ]
  },
  "status": 400
}

what am I doing wrong ?
thanks !

2

try it.

GET /my_index/_search
{
"query": {
            "script_score": {
                "query": {
                    "bool": {
                        "filter": []
                    }
                },
                "script": {
                    "source": "cosineSimilarity(params.query_vector, 'keywordsEmbedding')",
                    "lang": "painless",
                    "params": {
                        "query_vector": [
            -0.010962439,
            -0.0069970214,