zzcclp opened a new pull request #3591: [HOTFIX] fix compile error for flink module with spark 2.4
URL:
https://github.com/apache/carbondata/pull/3591
### Why is this PR needed?
when compile with spark 2.4, there are some compile errors in test cases of flink module
### What changes were proposed in this PR?
fix compile errors.
### Does this PR introduce any user interface change?
- No
- Yes. (please explain the change and update document)
### Is any new testcase added?
- No
- Yes
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