Migrating From Facets to Aggregations (Both Key & Value Scripts)

Elastic Stack Elasticsearch
1

Facets supported both key_script and value_script in this manner:
{
"size": 0,
"facets": {
"by-hour": {
"histogram": {
"key_script": "doc['media.created_time'].date.hourOfDay",
"value_script": "doc['media.likes.count'].value +
doc['media.comments.count'].value"
}
}
},
"query": {
"bool": {
"must": [
{
"term": {
"stream_id": {
"value": "1b883b7b-364b-4b5d-b099-9e7ef329a445"
}
}
}
]
}
}
}

What's the equivalent of this for aggregations under 1.2.2.?

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2

The equivalent would likely be a terms agg on the key_script expression
(using the terms agg script capability), and then followed by a nested
stats agg on the value_script expression (using the stats agg script
capability). Something like this:

"aggs": {
"by-hour": {
"terms": {
"script": "doc['media.created_time'].date.hourOfDay"
},
"aggs": {
"bytes_stats": {
"stats": {
"script": "doc['media.likes.count'].value +
doc['media.comments.count'].value"
}
}
}
}
}

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