nsivabalan opened a new pull request, #10078:
URL: https://github.com/apache/hudi/pull/10078
### Change Logs
Fixing config naming for OOB schema evol support to handle missing cols and
data type demotion. Config is named as
"hoodie.write.handle.missing.cols.and.datatype.demotion". Intention of this
config is as follows:
```
When a non-nullable column is missing from incoming batch during a write
operation, the write operation will fail schema compatibility check. Set this
option to true will make the missing column be filled with null values to
successfully complete the write operation. Similarly, when a column's data type
is demoted (from long to int), enabling this config will succeed the batch of
writes keeping the final table schema in long. If not for this config, the
write may fail since long to int is not backwards compatible evolution.
```
### Impact
Improves usability.
### 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_
- _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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