I noticed some strange behavior of highlighter. It works in a different way
to search.
See example.
request:
{
"highlight": {
"pre_tags": [
"[b]"
],
"post_tags": [
"[/b]"
],
"fields": {
"message": {}
}
},
"query": {
"constant_score": {
"query": {
"bool": {
"should": [
{
"multi_match": {
"query": "meat",
"analyzer": "standard",
"operator": "and",
"fields": [
"message"
]
}
},
{
"multi_match": {
"query": "fresh cucumbers",
"analyzer": "standard",
"operator": "and",
"fields": [
"message"
]
}
}
]
}
}
}
}
}
Response:
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "test",
"_type": "test",
"_id": "1",
"_score": 1,
"_source": {
"message": "meat, flacky cucumbers"
},
"highlight": {
"message": [
"[b]meat[/b], flacky [b]cucumbers[/b]"
]
}
}
]
}
}
"meat, flacky cucumbers" would not be found by "query": "fresh cucumbers",
"analyzer": "standard", "operator": "and"
But it seems that highlighter ignore operator: “and” and highlight any term
from queries.
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