He, I'm trying build a query with aggregation included, the aggregation define a sum of numeric values and i need further retrieve the _ids list of items concatenated ... this is part of my aggregation ...
"aggs": {
"group_by_balance_currency": {
"terms": {
"field": "balance_currency.keyword",
"size": 500000,
"order": {
"_key": "asc"
}
},
"aggs": {
"sum_of_amount": {
"sum": {
"field": "balance_amount"
}
}
}
},
// Here I need concat _id of items
}
}
The key of problem is how concat de _id separated by comma in the second part of aggregation, just in comment place.