sivabalan narayanan created HUDI-3820:
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Summary: Validate switching between different key generators will
throw exception
Key: HUDI-3820
URL: https://issues.apache.org/jira/browse/HUDI-3820
Project: Apache Hudi
Issue Type: Task
Components: spark
Reporter: sivabalan narayanan
We should add validation and tests to ensure switching from one key gen to
another for a given table fails. If user made a mistake in setting the right
key gen, our recommendation is to re-generate the entire table again. bcoz,
upserts/merge may not function well if key gen is modified. So, might as well
re-build entire table.
Also, ensure with "insert_overwrite_table" we should not do the validation and
over-ride table config w/ new key gen props.
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