prashantwason opened a new pull request #2350:
URL: https://github.com/apache/hudi/pull/2350
## What is the purpose of the pull request
1. Fixed a bug in schema compatibility check where some field types were not
allowed.
2. Some field types changes are allowed (e.g. int -> long) while maintaining
schema backward compatibility within HUDI. The check was reversed with the
reader schema being passed for the write schema.
3. Also added a unit test to check for all the allowed field type changes.
## Brief change log
## Verify this pull request
This pull request is already covered by existing tests, such as *(please
describe tests)*.
mvn test -pl hudi-client/hudi-spark-client -Dtest=TestTableSchemaEvolution
## 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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