dawidwys opened a new pull request #11156: [FLINK-16183][table-api] Make identifier parsing in Table API more lenient URL: https://github.com/apache/flink/pull/11156 ## What is the purpose of the change It improves the experience of Table API users as they do not need to escape SQL keywords. Some of the sql keywords might be a commonly used names in Table API (e.g. "table" for Table names). It also lets us support parsing identifiers coming from Java's ExpressionParser (e.g. for a string array(...) it produces a lookup call with an "array" identifier which should be parsed). ## Verifying this change This change added tests : * org.apache.flink.sql.parser.TableApiIdentifierParsingTest ## 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)
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