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Posted to issues@spark.apache.org by "caoxuewen (JIRA)" <ji...@apache.org> on 2018/08/02 12:06:00 UTC

[jira] [Created] (SPARK-24999) Reduce unnecessary 'new' memory operations

caoxuewen created SPARK-24999:
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             Summary: Reduce unnecessary 'new' memory operations
                 Key: SPARK-24999
                 URL: https://issues.apache.org/jira/browse/SPARK-24999
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.4.0
            Reporter: caoxuewen


This PR is to solve the CodeGen code generated by fast hash, and there is no need to apply for a block of memory for every new entry, because unsafeRow's memory can be reused.



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