anshu-makkar opened a new issue, #16539:
URL: https://github.com/apache/druid/issues/16539
Getting Exception when using PostAggregator `arrayOfDoublesSketchConstant`
in the groupby Query.
### Affected Version
Currently running, Druid version 25.0.0 with custom jar for Datasketches,
trying to use the latest druid with postaggregator
`arrayOfDoublesSketchConstant`
### Description
Getting an exception :
```
{
"error": "Unknown exception",
"errorMessage": "Unhandled exception made it to the top",
"errorClass":
"com.fasterxml.jackson.databind.exc.ValueInstantiationException",
"host": "X.X.X.X"
}
```
Example Query
```
{
"dataSource": {
"type": "table",
"name": "brq"
},
"context": {
"queryId": "4d516332-92f3-4f6b-a19f-760f0865653d",
"timeout": 120000
},
"queryType": "groupBy",
"intervals": [
"2024-05-23T00:00:00.000Z/2024-06-02T00:00:00.000Z"
],
"granularity": "hour",
"filter": {
"type": "and",
"fields": [
{
"type": "and",
"fields": [
{
"type": "selector",
"dimension": "exc",
"value": 6
},
{
"type": "and",
"fields": [
{
"type": "selector",
"dimension": "country",
"value": "US"
}
]
},
{
"type": "in",
"dimension": "types",
"values": [
"5"
]
}
]
},
"aggregations": [
{
"type": "arrayOfDoublesSketch",
"name": "tuple_sketch_agg",
"fieldName": "tuple_sketch_count"
}
],
"postAggregations": [
{
"type": "arrayOfDoublesSketchToMetricsSumEstimate",
"name": "psids_tuple_sketch_metric_estimate",
"field": {
"type": "arrayOfDoublesSketchSetOp",
"name": "tuple_sketch_set_ops",
"operation": "INTERSECT",
"fields": [
{
"type": "fieldAccess",
"name": "tuple_sketch_post_agg",
"fieldName": "tuple_sketch_agg"
},
{
"type": "arrayOfDoublesSketchConstant",
"name": "tuple_sketch_const_post_agg",
"value":
"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"
}
],
}
}
],
"dimensions": []
}
```
`tuple_sketch_count` is a column which is of type ArrayofDoubleSketch
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