I save every pageview of a website in the ES index, where each page is recognized by entity_id . I need to get the total number of unique pageviews from a specific point in time. I have the following mapping:
{
"my_index": {
"mappings": {
"page_views": {
"_all": {
"enabled": true
},
"properties": {
"created": {
"type": "long"
},
"entity_id": {
"type": "integer"
}
}
}
}
}
}
According to Elasticsearch docs, the way to do this is to use power aggregation. Here is my request:
GET my_index/page_views/_search
{
"filter": {
"bool": {
"must": [
[
{
"range": {
"created": {
"gte": 9999999999
}
}
}
]
]
}
},
"aggs": {
"distinct_entities": {
"cardinality": {
"field": "entity_id",
"precision_threshold": 100
}
}
}
}
Please note that I used the timestamp in the future, so the results are not returned. And I get the result:
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 0,
"max_score": null,
"hits": []
},
"aggregations": {
"distinct_entities": {
"value": 116
}
}
}
I don’t understand how unique page visits can be 116, so there are no page visits for a search query at all. What am I doing wrong?