Bharathwaj G

### Is your feature request related to a problem? Star tree index can be specified as part of index mapping under experimental feature flag tag and OpenSearch will automatically pick...

[Star tree] Handle delete cases for star tree

2

### Description When there are delete operations in the index, there are segments where `SegmentDocValuesProducers` is present which contains `List` contrary to segments in index where no deletes are present....

### Describe the bug 1. Refresh fails when delete documents are performed ``` "reason": { "type": "refresh_failed_engine_exception", "reason": "Refresh failed", "index": "logs-241998", "shard": "0", "index_uuid": "d02mxLclQrmb65qHY8i6fg", "caused_by": { "type": "file_already_exists_exception",...

Complete keyword changes for star tree

13

### Description This PR adds support for keyword fields with changes end to end that includes flush, merge and file format changes. As part of "ordered_dimensions" as part of star...

[Star tree] Support for keyword changes as part of star tree mapper

12

### Description This PR supports keyword fields as part of the star tree mapping. This is built on top of date mapping PR. As part of "ordered_dimensions" as part of...