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Delta kernel conversion target#801

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vaibhavk1992 wants to merge 47 commits intoapache:mainfrom
vaibhavk1992:test-4
Open

Delta kernel conversion target#801
vaibhavk1992 wants to merge 47 commits intoapache:mainfrom
vaibhavk1992:test-4

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@vaibhavk1992
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Important Read

  • Please ensure the GitHub issue is mentioned at the beginning of the PR

What is the purpose of the pull request

(For example: This pull request implements the sync for delta format.)

Brief change log

(for example:)

  • Fixed JSON parsing error when persisting state
  • Added unit tests for schema evolution

Verify this pull request

(Please pick either of the following options)

This pull request is a trivial rework / code cleanup without any test coverage.

(or)

This pull request is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

  • Added integration tests for end-to-end.
  • Added TestConversionController to verify the change.
  • Manually verified the change by running a job locally.

- Add DeltaKernelConversionTarget for writing to Delta tables
- Add DeltaKernelDataFileUpdatesExtractor for incremental sync
- Add TestDeltaKernelSync with comprehensive test coverage
- Disable 8 tests due to Delta Kernel 4.0.0 _last_checkpoint bug
- Update DeltaKernelSchemaExtractor with new schema conversion methods
- Remove security manager argument from pom.xml for Java 11 compatibility

Tests disabled until Delta Kernel is upgraded to version with fix:
- testCreateSnapshotControlFlow
- testFileRemovalWithCheckpoint
- testPrimitiveFieldPartitioning
- testMultipleFieldPartitioning
- testSourceTargetIdMapping
- testSchemaEvolution
- testGetTableMetadata
- testFileRemoval

All disabled tests call getLatestSnapshot() which fails due to missing
_last_checkpoint file created by PostCommitHook.threadSafeInvoke().
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