Elasticsearch Prefix query not working on nested documents -

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i'm using prefix query elasticsearch query. works fine when using on top-level data, once applied nested data there no results returned. data try query looks follows:

here prefix query works fine: query:

{ "query": { "prefix" : { "duration": "7"} } }

result:

{    "took": 25, ... },    "hits": {       "total": 6,       "max_score": 1,       "hits": [          {         "_index": "itemresults",         "_type": "itemresult",         "_id": "item_result_7c8649c2-6cb0-487e-bb3c-c4bf0ad28a90_8bce0a3f-f951-4a01-94b5-b55dea1a2752_7c965241-ad0a-4a83-a400-0be84daab0a9_61",         "_score": 1,         "_source": {            "score": 1,            "studentid": "61",            "timestamp": 1377399320017,            "groupidentifiers": {},            "assessmentitemid": "7c965241-ad0a-4a83-a400-0be84daab0a9",            "answered": true,            "duration": "7.078",            "metadata": {               "korrektur": "a",               "matrize12_13": "ma.1.b.1.d.1",               "kompetenz": "zuv",               "zyklus": "z2",               "schwierigkeit": "h",               "handlungsaspekt": "aue",               "fach": "ma",               "aufgabentyp": "l"            },            "assessmentsessionid": "7c8649c2-6cb0-487e-bb3c-c4bf0ad28a90",            "assessmentid": "8bce0a3f-f951-4a01-94b5-b55dea1a2752"         }      },

now trying use prefix query apply on nested structure 'metadata' doesn't return result:

{ "query": { "prefix" : { "metadata.fach": "m"} } }

result:

{    "took": 18,    "timed_out": false,    "_shards": {       "total": 15,       "successful": 15,       "failed": 0    },    "hits": {       "total": 0,       "max_score": null,       "hits": []    } }

what doing wrong? @ possible apply prefix on nested data?

it not depends whether nested or not. depends on mapping, if analyzing string @ index time or not.

i'm going put example:

i've created , index following mapping:

curl -xput 'http://localhost:9200/test/' -d ' {   "mappings": {      "test" : {       "properties" : {         "text_1" : {            "type" : "string",            "index" : "analyzed"         },         "text_2" : {           "index": "not_analyzed",            "type" : "string"         }       }     }   } }'

basically 2 text fields, 1 analyzed , other not_analyzed. index following document:

curl -xput 'http://localhost:9200/test/test/1' -d ' { "text_1" : "hello world", "text_2" : "hello world" }'

text_1 query

as text_1 analyzed 1 of things elasticsearch convert field lower case. if make following query doesn't find document:

curl -xget 'http://localhost:9200/test/test/_search?pretty=true' -d ' { "query": { "prefix" : { "text_1": "h"} } } ' {   "took" : 2,   "timed_out" : false,   "_shards" : {     "total" : 5,     "successful" : 5,     "failed" : 0   },   "hits" : {     "total" : 0,     "max_score" : null,     "hits" : [ ]   } }

but if trick , use lower case making query:

curl -xget 'http://localhost:9200/test/test/_search?pretty=true' -d ' { "query": { "prefix" : { "text_1": "h"} } } ' {   "took" : 2,   "timed_out" : false,   "_shards" : {     "total" : 5,     "successful" : 5,     "failed" : 0   },   "hits" : {     "total" : 1,     "max_score" : 1.0,     "hits" : [ {       "_index" : "test",       "_type" : "test",       "_id" : "1",       "_score" : 1.0, "_source" : { "text_1" : "hello world", "text_2" : "hello world" }     } ]   } }

text_2 query

as text_2 not analyzed, when make original query matches:

curl -xget 'http://localhost:9200/test/test/_search?pretty=true' -d ' { "query": { "prefix" : { "text_2": "h"} } } ' {   "took" : 1,   "timed_out" : false,   "_shards" : {     "total" : 5,     "successful" : 5,     "failed" : 0   },   "hits" : {     "total" : 1,     "max_score" : 1.0,     "hits" : [ {       "_index" : "test",       "_type" : "test",       "_id" : "1",       "_score" : 1.0, "_source" : { "text_1" : "hello world", "text_2" : "hello world" }     } ]   } }

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