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Posted to dev@orc.apache.org by "David Mollitor (Jira)" <ji...@apache.org> on 2021/07/07 17:06:00 UTC

[jira] [Created] (ORC-837) Reuse HiveDecimalWritable in ConvertTreeReaderFactory

David Mollitor created ORC-837:
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             Summary: Reuse HiveDecimalWritable in ConvertTreeReaderFactory
                 Key: ORC-837
                 URL: https://issues.apache.org/jira/browse/ORC-837
             Project: ORC
          Issue Type: Improvement
          Components: Java
            Reporter: David Mollitor
            Assignee: David Mollitor


https://github.com/apache/orc/blob/fb0ed31f15d9b77b76bc5dec8721f5d9ee129879/java/core/src/java/org/apache/orc/impl/ConvertTreeReaderFactory.java#L826

Several places in {{ConvertTreeReaderFactory}} that creates a HiveDecimalWritable for each element being processed.  It is very common practice to keep a single instance of {{xyzWritable }} for re-use.  Do the same here.



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