## What is the purpose of the change *This pull request fix Table scalar function expression parses error when function name equals the exists keyword suffix*
## Brief change log - *uses an exact matching mode for some suffix keyword* ## Verifying this change This change added tests and can be verified as follows: - *KeywordAsSuffixTest#testFunctionNameContainsSuffixKeyword* ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes / **no**) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**) - The serializers: (yes / **no** / don't know) - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know) - The S3 file system connector: (yes / **no** / don't know) ## Documentation - Does this pull request introduce a new feature? (yes / **no**) - If yes, how is the feature documented? (not applicable / docs / JavaDocs / **not documented**) [ Full content available at: https://github.com/apache/flink/pull/6622 ] This message was relayed via gitbox.apache.org for [email protected]
