Elasticsearch - location of fragments in a document -


i executing phrase query 1 below. returns me highlighted fragments ordered relevance. naturally, want user click on fragment , i'd scroll document corresponding location. however, don't see way in elasticsearch find out fragments in original document. ideas?

get documents/doc/_search {    "query": {         "match_phrase": {             "text": {                 "query": "hello world",                 "slop":  10             }         }     },      "highlight" : {         "order" : "score",         "fields" : {             "text" : {"fragment_size" : 100, "number_of_fragments" : 10}         }     } }

in meantime couldn't find proper solution , ended following hack (works us): before indexing annotate each word in text "[index]", "some text index" becomes "some[00] text[01] to[02] index[03]". use char filter shown below. when highlights returned parse out word positions highlight text.

"settings": {     "analysis": {       "char_filter": {         "remove_annotation": {           "type": "pattern_replace",           "pattern": "\\[[0-9]+\\]",           "replacement": ""         }       },       "analyzer": {         "annotated_english_language_analyzer": {           "type": "custom",           "char_filter": [             "remove_annotation"           ],           ...

note, annotation indexes should padded log10(text_length)+1 digits, width of found highlights (after annotations removal) not depend on (beginning vs. end of text) found.


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