npawar commented on issue #8604:
URL: https://github.com/apache/pinot/issues/8604#issuecomment-1118106277
@saumya2700 , as Saurabh has pointed out, you need to remove all the
non-array fields from fieldsToUnnest. Here's what works. Schema should have,
instead of just calActivity.metadata,
```
{
"name": "calActivity.metadata.activityType",
"dataType": "STRING"
},
{
"name": "calActivity.metadata.conf",
"dataType": "FLOAT"
},
```
Ingestion config should just have
```
"complexTypeConfig": {
"fieldsToUnnest": ["calActivity.metadata"]
}
```
You dont need any transform functions, just this is enough.
Please try this out and let us know
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