[BUG] Add _doc_count in root of transform documents #556
Description
What is the bug?
Currently, we index transform documents with transform._doc_count field. This results in aggregation queries returning incorrect doc_count for buckets.
How can one reproduce the bug?
Steps to reproduce the behavior:
- Query with aggregation transform index and source index and notice difference in doc_count field in buckets
What is the expected behavior?
doc_count in buckets should be same when running aggregation on source_index and transform_index
Do you have any additional context?
We could solve this by adding _doc_count field in root of transform doc, instead of transform._doc_count