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Posted to issues@spark.apache.org by "Jungtaek Lim (JIRA)" <ji...@apache.org> on 2018/09/21 05:47:00 UTC
[jira] [Updated] (SPARK-24999) Reduce unnecessary 'new' memory
operations
[ https://issues.apache.org/jira/browse/SPARK-24999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jungtaek Lim updated SPARK-24999:
---------------------------------
Fix Version/s: (was: 3.0.0)
2.4.0
> 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
> Assignee: caoxuewen
> Priority: Major
> Fix For: 2.4.0
>
>
> 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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