Three offline integrated tests fail for openmldb-batch-test

There are three test cases fail when running tests in openmldb-batch-test.


The issue mentions three failing offline integrated tests in the openmldb-batch-test suite. Start by locating the test files in the repository, likely under a test directory. Run the specific failing tests to see the error output. Investigate the test logic and the batch processing components of OpenMLDB to understand why these tests are failing. Check for any recent changes in the batch processing code or dependencies that might have caused the regression.

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