nsivabalan opened a new pull request, #13623:
URL: https://github.com/apache/hudi/pull/13623
### Change Logs
- Unifying Partial Update Modes from TableProperty and Merge Into Partial
Update Encoding.
- Fixed all of partial update handling within BufferedRecordMergerFactory.
- Fixed Partial update encoding support across all record formats (prior to
this patch only spark record was supported).
Detailed changes:
Possible values for table property PartialUpdateMode:
IGNORE_DEFAULTS, IGNORE_DEFAULTS_NULLS, FILL_UNAVAILABLE.
And for table's not having such partial update requirement, we may not find
any value for `PartialUpdateMode` in table property.
In addition to this, we also have another enum value named "KEEP_VALUES"
which will take effect when Partial columns are encoded from Merge Into.
Hence within BufferedRecordMergerFacotry.create(), we take in two arguments
named `enablePartialEncoding` and `Option<PartialUpdateMode>`.
`enablePartialEncoding` boolean flag will denote whether is full record merging
or not.
If enabled, the value set for PartialUpdateMode should be honored.
### Impact
- Cleaning up PartialUpdateMode feature and unifying MergeInto partial
update encoding along with other PartialUpdateModes from table config.
### Risk level (write none, low medium or high below)
medium
### 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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