bhat-vinay opened a new pull request, #10657:
URL: https://github.com/apache/hudi/pull/10657
### Change Logs
Initial commit. Adds the following:
1. Add hooks in HoodieFileIndex to prune candidate files (to scan) based
on secondary key column filters.
2. Add ability in HoodieMetadataLogRecordReader to Use unmerged log record
scanner (HoodieUnMergedLogRecordScanner)
3. Use the unmerged log record sacnner to buffer records from secondary
index partition (of metadata table)
Pending work items:
1. Merge secondary index records from log files with base files
2. Handle secondary index records moving across file groups (on updates
to the base table)
### Impact
Allows the query to prune candidate files based on the defined secondary
index columns/filters
### Risk level (write none, low medium or high below)
None. Feature not enabled yet
### Documentation Update
Will be done as feature nears completion
### Contributor's checklist
- [ ] Read through [contributor's
guide](https://hudi.apache.org/contribute/how-to-contribute)
- [ ] Change Logs and Impact were stated clearly
- [ ] Adequate tests were added if applicable
- [ ] CI passed
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