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## What changes were proposed in this pull request? This pull request adds test cases for the following cases: - keep all data types with null or without null - access `CachedBatch` disabling whole stage codegen - access only some columns in `CachedBatch` This PR is a part of https://github.com/apache/spark/pull/15219. Here are motivations to add these tests. When https://github.com/apache/spark/pull/15219 is enabled, the first two cases are handled by specialized (generated) code. The third one is a pitfall. In general, even for now, it would be helpful to increase test coverage. ## How was this patch tested? added test suites itself Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com> Closes #15462 from kiszk/columnartestsuites. |
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