[FLINK-24408][table-planner] Enable code splitting for large number of VALUES clause

[tsreaper]

What is the purpose of the change

Currently VALUES clause are implemented using switch java statements. However the java code splitter module does not handle switch statements. To enable code splitting for VALUES clause, this PR changes the implementation from switch to if.

Brief change log

• Enable code splitting for large number of VALUES clause.

Verifying this change

This change added tests and can be verified by running the added tests.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? not applicable

[flinkbot]

CI report:

• 4d2b9fb UNKNOWN
• 3de9f37 Azure: SUCCESS

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Automated Checks

Last check on commit 4d2b9fb (Thu Oct 28 07:20:21 UTC 2021)

Warnings:

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[JingsongLi]

+1