Elasticsearch range query not working as expected - elasticsearch

Question

I am trying to fetch data by applying range on date type field("timeA" in this case).
My query is:
{
"query": {
"bool": {
"must": [
{
"match_phrase": {
"name": "A"
}
},
{
"range": {
"timeA": {
"lte": 9999
}
}
}
]
}
}
}
I don't have any data less then 1558891800000 in timeA filed.
SO the expected output has to be:
"took": 0,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 0,
"max_score": null,
"hits": []
}
}
But the actual output I'm getting is:
{
"took": 0,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1.287682,
"hits": [
{
"_index": "checktimestamp",
"_type": "doc",
"_id": "AWr4sdJv_fFf5JZrQhXl",
"_score": 1.287682,
"_source": {
"name": "A",
"timeA": 1558899000000,
"timeLocal": "27-1AM"
}
}
]
}
}
The Type of timeA field is date.
My elasticsearch version is 5.6.10 and Kibana version is 5.6.10.
Please suggest what is the problem here and how can I resolve it.
Thanks in advance.

Answer 1

Elastic parses the 4 digits as a year meaning it matches documents with a year less or equal to 9999, which i'm assuming is all your data.
To avoid this your need to define in your mapping a strict format for your date field, this will now allow a "yyyy" format to sneak in.
or alternatively don't use numbers with less than 5 digits in those queries.