yihua opened a new pull request, #5379:
URL: https://github.com/apache/hudi/pull/5379
## What is the purpose of the pull request
This PR fixes the projection logic around a nested field which is used as
the pre-combined key field. The fix is to include the root level field, i.e.,
"a", for a nested field "a.b.c" that is required.
## Brief change log
- Changes the logic to include the root level field for a required nested
field in `HoodieSparkUtils.getRequiredSchema`
- Adds tests to guard around the behavior for a nested field used as
pre-combined key.
## Verify this pull request
This change added tests in `TestHoodieAvroUtils` and
`TestMORDataSourceStorage`. `TestMORDataSourceStorage` contains tests that use
nested field "fare.currency" as the pre-combined key. Before this change, the
tests with nest fields fail. After this PR, the tests pass.
## Committer checklist
- [ ] Has a corresponding JIRA in PR title & commit
- [ ] Commit message is descriptive of the change
- [ ] CI is green
- [ ] Necessary doc changes done or have another open PR
- [ ] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
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