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我正在使用前綴查詢彈性搜索查詢。在頂級數據上使用它時,它可以正常工作,但是一旦應用於嵌套數據,就不會返回任何結果。我嘗試查詢數據如下所示:Elasticsearch前綴查詢不適用於嵌套文檔
這裏前綴查詢工作正常: 查詢:
{ "query": { "prefix" : { "duration": "7"} } }
結果:
{
"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"
}
},
現在試圖用前綴查詢應用於嵌套結構「元數據」不返回任何結果:
{ "query": { "prefix" : { "metadata.Fach": "M"} } }
結果:
{
"took": 18,
"timed_out": false,
"_shards": {
"total": 15,
"successful": 15,
"failed": 0
},
"hits": {
"total": 0,
"max_score": null,
"hits": []
}
}
我在做什麼錯?是否可以在嵌套數據上應用前綴?