我使用的是elasticsearch 8.8.0
我目前有这个疑问
{
"query": {
"bool": {
"must": [
{
"range": {
"deliveryStatus": {
"gte": -2,
"lte": 9
}
}
},
{
"range": {
"cardDate": {
"gte": "2024-04-16",
"lte": "2024-04-16"
}
}
}
]
}
}
}
这给了我这个结果
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 828,
"relation": "eq"
},
"max_score": 2.0,
"hits": [
{
"_index": "credit",
"_id": "70230254011604",
"_score": 2.0,
"_source": {
"cardDate": "2024-04-16T00:00:00",
"deliveryStatus": "3"
}
}
]
}
}
但是，当我尝试将 DeliveryStatus 的上限从 9 增加到 10 时，如该查询所示
{
"query": {
"bool": {
"must": [
{
"range": {
"deliveryStatus": {
"gte": -2,
"lte": 10
}
}
},
{
"range": {
"cardDate": {
"gte": "2024-04-16",
"lte": "2024-04-16"
}
}
}
]
}
}
}
根据我的理解，结果应该保持不变 - 但是当我击中它时；这就是我得到的结果
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 0,
"relation": "eq"
},
"max_score": null,
"hits": []
}
}
这很奇怪，不符合我目前的理解。出于好奇，我尝试删除 cardDate 以查看是否得到与此查询中所示相同的结果
{
"query": {
"bool": {
"must": [
{
"range": {
"deliveryStatus": {
"gte": -2,
"lte": 10
}
}
}
]
}
}
}
我得到了这个结果
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 10000,
"relation": "gte"
},
"max_score": 1.0,
"hits": [
{
"_index": "credit",
"_id": "65391401441421011",
"_score": 1.0,
"_source": {
"cardDate": "2023-11-10T00:00:00"
"deliveryStatus": -1
}
}
]
}
}
如果我希望deliveryStatus的上限为13，有人可以解释一下为什么和如何来修复它吗（我尝试更改为10或以上，它显示了一个空列表）
/编辑：我读到这可能是索引中数据类型不匹配的问题。但是，如果是这样的话，那不是会使第一个查询也不起作用吗？我的elasticSearch中deliveryStatus的当前数据类型是“文本”，在我理解问题之前我不想删除我的索引，因为索引中已经有相当多的数据
//编辑：根据要求，下面是我的索引的映射
卡片日期
{
"credit": {
"mappings": {
"cardDate": {
"full_name": "cardDate",
"mapping": {
"cardDate": {
"type": "date"
}
}
}
}
}
}
这是交货状态
{
"credit": {
"mappings": {
"deliveryStatus": {
"full_name": "deliveryStatus",
"mapping": {
"deliveryStatus": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
},
"fielddata": true
}
}
}
}
}
}
@Gagak
范围查询基于字段类型。如果它是字符串类型，如keyword或text，那么它会按字母顺序对所有术语进行排序。
如果是数字字段类型，那么它将对所有数字值进行排序。
但就你而言 -
数值与类型keyword映射，因此它尝试按字母顺序排序，但最终返回错误的结果。
让我们通过一个示例来理解 - 使用 keyword 字段类型创建索引并索引一些数据。
PUT test-range
{
"mappings": {
"properties": {
"message":{
"type": "keyword"
}
}
}
}
POST test-range/_doc
{
"message":17
}
POST test-range/_doc
{
"message":2
}
POST test-range/_doc
{
"message":23
}
POST test-range/_doc
{
"message":"ab"
}
POST test-range/_doc
{
"message":"ac"
}
POST test-range/_doc
{
"message":"ad"
}
POST test-range/_doc
{
"message":"ac1"
}
让我们对文本进行范围查询 -
GET test-range/_search
{
"query": {
"range": {
"message": {
"gte": "ac",
"lte": "ad"
}
}
}
}
它会给你正确的结果，如下所示
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 3,
"relation": "eq"
},
"max_score": 1,
"hits": [
{
"_index": "test-range",
"_id": "zfeT944BZFU3azzCOTSB",
"_score": 1,
"_source": {
"message": "ac"
}
},
{
"_index": "test-range",
"_id": "OF6T944BMvvuJ06pQGtI",
"_score": 1,
"_source": {
"message": "ad"
}
},
{
"_index": "test-range",
"_id": "3feT944BZFU3azzCjDQP",
"_score": 1,
"_source": {
"message": "ac1"
}
}
]
}
}
现在让我们对数字（关键字类型）进行范围查询 -
GET test-range/_search
{
"query": {
"range": {
"message": {
"gte": 17,
"lte": 23
}
}
}
}
回应
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 3,
"relation": "eq"
},
"max_score": 1,
"hits": [
{
"_index": "test-range",
"_id": "OfeR944BZFU3azzCYDQ6",
"_score": 1,
"_source": {
"message": 17
}
},
{
"_index": "test-range",
"_id": "pV6R944BMvvuJ06paWrr",
"_score": 1,
"_source": {
"message": 2
}
},
{
"_index": "test-range",
"_id": "S_eR944BZFU3azzCdDSd",
"_score": 1,
"_source": {
"message": 23
}
}
]
}
}
这里尝试按字母顺序排序，这对于数字值来说是不可能的。因此它的显示顺序与您索引的顺序相同。例如，如果我尝试找到 2 - 23 之间的范围，它将不会返回 17。