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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/08/09 17:20:57 UTC

[GitHub] [arrow] westonpace commented on issue #13827: How to read a subset of columns from arrow ipc format file the fastest way?

westonpace commented on issue #13827:
URL: https://github.com/apache/arrow/issues/13827#issuecomment-1209656524

   I think we did some investigation of partial reads in #11616 but I can't remember if we enabled it for the synchronous path or just the asynchronous path (`GetRecordBatchGenerator`).
   
   Can you try calling `PreBufferMetadata` before you start reading the record batches?  If that doesn't work can you try `GetRecordBatchGenerator`?


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