ES 5.4.0 Range query return wrong result

[shadowinlfie (宫勐)]

1. Elasticsearch version 5.4.0

2. JVM 1.8

3. Index mapping:
   {
   "eastmoney": {
   "mappings": {
   "doc": {
   "properties": {
   "content": {
   "type": "keyword",
   "ignore_above": 20
   },
   "crawlertime": {
   "type": "float"
   },
   "files": {
   "type": "keyword"
   },
   "keyid": {
   "type": "keyword"
   },
   "publishtime": {
   "type": "date",
   "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
   },
   "sdb": {
   "type": "keyword"
   },
   "stockcode": {
   "type": "keyword"
   },
   "stockname": {
   "type": "text",
   "analyzer": "my_ana"
   },
   "tag": {
   "type": "keyword"
   },
   "title": {
   "type": "text",
   "analyzer": "my_ana"
   },
   "url": {
   "type": "keyword"
   }
   }
   }
   }
   }
   }

4. Query:

   {
   "_source": "crawlertime",
   "sort": [
   {"crawlertime": {"order": "desc"}}
   ],
   "query":{
   "bool":{
   "must": [{"range": {"crawlertime": {"lte": 1530505048866}}}]
   }
   }

}

5. Result:
   {
   "took": 7,
   "timed_out": false,
   "_shards": {
   "total": 1,
   "successful": 1,
   "failed": 0
   },
   "hits": {
   "total": 61317,
   "max_score": null,
   "hits": [
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161506068",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047304
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161506070",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047145
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161517275",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047593
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161517302",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047778
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161517277",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047130
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161517198",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047107
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161517129",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047861
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161516494",
   "_score": null,
   "_source": {
   "crawlertime": 1530505047632
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161514068",
   "_score": null,
   "_source": {
   "crawlertime": 1530505048875
   },
   "sort": [
   1530505070000
   ]
   },
   {
   "_index": "eastmoney",
   "_type": "doc",
   "_id": "AN201807011161514069",
   "_score": null,
   "_source": {
   "crawlertime": 1530505048984
   },
   "sort": [
   1530505070000
   ]
   }
   ]
   }
   }

Query with range on crawlertime, return wrong result, some item in hits with larger crawlertime bug is appened int the response

How can I resolve this problem? Is this a known bugs? Is this bugs resolved in the newest version?

[dadoonet (David Pilato)]

The problem is that crawlertime is a float.
Change its type to a long.