Description
Elasticsearch version (bin/elasticsearch --version): 7.16.2
Plugins installed: []
JVM version (java -version):
OS version (uname -a if on a Unix-like system):
Description of the problem including expected versus actual behavior:
Percolated queries no longer highlight subfields with FVH higlighter. I expect them to be highlighted as in the previous version of ES.
Steps to reproduce:
Index mappings with a field and subfield with identical analysis, both have term vectors with positions offsets.
PUT /test
{
"mappings": {
"properties": {
"query": {
"type": "percolator"
},
"userinput": {
"type": "text",
"analyzer": "standard",
"term_vector": "with_positions_offsets",
"fields": {
"another": {
"type": "text",
"analyzer": "standard",
"term_vector": "with_positions_offsets"
}
}
}
}
}
}
A couple of test documents:
PUT /test/_doc/1?refresh=true
{
"query": {
"match_phrase": {
"userinput": {
"query": "kimchi"
}
}
}
}
PUT /test/_doc/2?refresh=true
{
"query": {
"match_phrase": {
"userinput.another": {
"query": "kimchi"
}
}
}
}
The actual search query:
GET /test/_search
{
"query": {
"percolate": {
"field": "query",
"document": {
"userinput": "kimchi"
}
}
},
"highlight": {
"type": "fvh",
"fields": {
"*": {}
}
}
}
This sequence would respond with the following on 7.16.2, notice that the second document contains no highlighting.
{
"took": 3,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 2,
"relation": "eq"
},
"max_score": 0.13076457,
"hits": [
{
"_index": "test",
"_type": "_doc",
"_id": "1",
"_score": 0.13076457,
"_source": {
"query": {
"match_phrase": {
"userinput": {
"query": "kimchi"
}
}
}
},
"fields": {
"_percolator_document_slot": [0]
},
"highlight": {
"userinput": ["<em>kimchi</em>"]
}
},
{
"_index": "test",
"_type": "_doc",
"_id": "2",
"_score": 0.13076457,
"_source": {
"query": {
"match_phrase": {
"userinput.another": {
"query": "kimchi"
}
}
}
},
"fields": {
"_percolator_document_slot": [0]
}
}
]
}
}Executing the same sequence on 7.9.3 highlights both of the results:
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 2,
"relation": "eq"
},
"max_score": 0.13076457,
"hits": [
{
"_index": "test",
"_type": "_doc",
"_id": "1",
"_score": 0.13076457,
"_source": {
"query": {
"match_phrase": {
"userinput": {
"query": "kimchi"
}
}
}
},
"fields": {
"_percolator_document_slot": [0]
},
"highlight": {
"userinput": ["<em>kimchi</em>"]
}
},
{
"_index": "test",
"_type": "_doc",
"_id": "2",
"_score": 0.13076457,
"_source": {
"query": {
"match_phrase": {
"userinput.another": {
"query": "kimchi"
}
}
}
},
"fields": {
"_percolator_document_slot": [0]
},
"highlight": {
"userinput.another": ["<em>kimchi</em>"]
}
}
]
}
}Provide logs (if relevant):