JingsongLi opened a new pull request #10022: [FLINK-14135][orc] Introduce OrcColumnarRowInputFormat URL: https://github.com/apache/flink/pull/10022 ## What is the purpose of the change OrcColumnarRowInputFormat is introduced to read orc data in batches. When returning each row of data, instead of actually retrieving each field, we use BaseRow's abstraction to return a Columnar Row-like view. This will greatly improve the downstream filtered scenarios, so that there is no need to access redundant fields on the filtered data. And read binary string instead of string can greatly reduce the cost of encode and decode. ## Verifying this change OrcColumnarRowInputFormatTest ## 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, Yarn/Mesos, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? (yes) - If yes, how is the feature documented? JavaDocs
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