must_not在Elasticsearch中没有给出空字段的预期结果

Question

这是我的示例es索引文档:

"hits" : [
{
"_index" : "project_note",
"_type" : "project_note",
"_id" : "19",
"_score" : 1.0,
"_source" : {
"createTime" : "2021-10-04T13:43:55.330",
"createTimeInMs" : 1633333435330,
"createdBy" : "test",
"editTime" : "2021-10-04T13:43:55.330",
"editTimeInMs" : 1633333435330,
"editedBy" : "test",
"versionId" : 1,
"id" : "19",
"organizationId" : "28",
"accessLevel" : "PUBLIC",
"status" : "ACTIVE",
"projectId" : "95",
"userId" : 129,
"noteType" : "SYSTEM_GENERATED",
"projectDemographicLogId" : "1"
},
{
"_index" : "project_note",
"_type" : "project_note",
"_id" : "19",
"_score" : 1.0,
"_source" : {
"createTime" : "2021-10-04T13:43:55.330",
"createTimeInMs" : 1633333435330,
"createdBy" : "test",
"editTime" : "2021-10-04T13:43:55.330",
"editTimeInMs" : 1633333435330,
"editedBy" : "test",
"versionId" : 1,
"id" : "19",
"organizationId" : "28",
"accessLevel" : "PUBLIC",
"status" : "ACTIVE",
"projectId" : "95",
"userId" : 129

}
]

在第一个文档中，它有noteType，但在第二个文档中，我没有将该字段存储在db中。我想排除noteType==null或noteType不存在的文档。但是，我只得到包含noteType="SYSTEM_GENERATED"

的文档我的方法:

{
"query":
{
"bool" : {
"must" : [
{
"term" : {
"projectId" : {
"value" : "95",
"boost" : 1.0
}
}
},
{
"range" : {
"createTimeInMs" : {
"from" : null,
"to" : 1633594455000,
"include_lower" : true,
"include_upper" : true,
"boost" : 1.0
}
}
}
],
"must_not" : [
{
"term" : {
"noteType" : {
"value" : "SYSTEM_GENERATED",
"boost" : 1.0
}
}
}
],
"adjust_pure_negative" : true,
"boost" : 1.0
}
}

}

等效的java代码:

BoolQueryBuilder queryBuilder= QueryBuilders.boolQuery();
queryBuilder.must(QueryBuilders.termQuery("projectId", requestInfo.getProjectId()));
queryBuilder.must(rangeQuery("createTimeInMs").lte(requestInfo.getCreateTimeInMs()));
if(!requestInfo.isIncludeLog()) {

queryBuilder.mustNot(QueryBuilders.termQuery("noteType", Defs.SYSTEM_NOTE_TYPE));

}

Answer 1

如果只使用must_not部分(不包括must部分)

{
"query": {
"bool": {
"must_not": [
{
"term": {
"noteType.keyword": {
"value": "SYSTEM_GENERATED",
"boost": 1.0
}
}
}
],
"adjust_pure_negative": true,
"boost": 1.0
}
}
}

搜索结果与您期望得到的结果相似

"hits": [
{
"_index": "69477995",
"_type": "_doc",
"_id": "2",
"_score": 0.0,
"_source": {
"createTime": "2021-09-26T15:54:08.373",
"createTimeInMs": 1632650048373,
"createdBy": "test",
"editTime": "2021-09-26T15:54:08.373",
"editTimeInMs": 1632650048373,
"editedBy": "test",
"versionId": 1,
"id": "18",
"note": "note-1, simple note ",
"organizationId": "28",
"accessLevel": "PUBLIC",
"status": "ACTIVE",
"taskId": "5",
"userId": 129
}
}
]