bhat-vinay opened a new pull request, #10355:
URL: https://github.com/apache/hudi/pull/10355
A new TVF, `hudi_timeline_query(...)` is added to support querying timeline
through spark-sql. The information displayed is influenced by the 'Commits'
command of hudi-cli (with some additional information).
A new relation, `TimelineRelation`, is added to transparently support this
functionality. The relation implements `buildScan(...)` method of `TableScan`
trait. It does not support filter or predicate push-down. Column filtering and
predicate evaluation needs to be done by the execution layer. This seems
reasonable for the initial implementation for this tool which is mainly going
to be used as a debugging/introspection tool. The relation defines a fixed
schema based on the information present ina Hudi timeline instant.
### Change Logs
A new TVF, `hudi_timeline_query(...)` is added to support querying timeline
through spark-sql. The information displayed is influenced by the 'Commits'
command of hudi-cli (with some additional information).
A new relation, `TimelineRelation`, is added to transparently support this
functionality. The relation implements `buildScan(...)` method of `TableScan`
trait. It does not support filter or predicate push-down. Column filtering and
predicate evaluation needs to be done by the execution layer. This seems
reasonable for the initial implementation for this tool which is mainly going
to be used as a debugging/introspection tool. The relation defines a fixed
schema based on the information present ina Hudi timeline instant.
### Impact
New TVF function is added to query hudi timeline through spark-sql.
### Risk level (write none, low medium or high below)
Low
### Documentation Update
TBD
_Describe any necessary documentation update if there is any new feature,
config, or user-facing change_
- _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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