nsivabalan opened a new pull request, #12567:
URL: https://github.com/apache/hudi/pull/12567
### Change Logs
- As of now, we lookup in col stats for all filter expressions. This patch
checks for any non indexed cols and avoids col stats based pruning. The files
from pruned files are used as candidate files if any non indexed cols are
detected. If not, pruning happens based on col stats index in MDT and candidate
files are deduced.
### Impact
- No additional overhead to look up in col stats for filters on non indexed
col stats.
### Risk level (write none, low medium or high below)
low
### Documentation Update
_Describe any necessary documentation update if there is any new feature,
config, or user-facing change. If not, put "none"._
- _The config description must be updated if new configs are added or the
default value of the configs are changed_
- _Any new feature or user-facing change requires updating the Hudi website.
Please create a Jira ticket, attach the
ticket number here and follow the
[instruction](https://hudi.apache.org/contribute/developer-setup#website) to
make
changes to the website._
### 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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