[jira] [Created] (ARROW-17914) [Java] Support reading a subset of fields from an IPC file or stream

["David Li (Jira)" <ji...@apache.org>]

David Li created ARROW-17914:
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             Summary: [Java] Support reading a subset of fields from an IPC file or stream
                 Key: ARROW-17914
                 URL: https://issues.apache.org/jira/browse/ARROW-17914
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Java
            Reporter: David Li


C++ supports {{IpcReadOptions.included_fields}} which lets you load a subset of (top-level) fields from an IPC file or stream, potentially saving on I/O costs. It would be useful to support this in Java as well. Some refactoring would be required since MessageSerializer currently reads record batch messages in as a whole, and it would be good to quantify how much of a benefit this provides in different scenarios.



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