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https://issues.apache.org/jira/browse/IMPALA-3631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-3631.
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Resolution: Later
I don't think this is really a priority now - we should probably just treat
this the same as other performance improvements and wait until we have some
evidence that it's important to improve.
> Investigate why Decimal to Timestamp casting became slower
> ----------------------------------------------------------
>
> Key: IMPALA-3631
> URL: https://issues.apache.org/jira/browse/IMPALA-3631
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 2.6.0
> Reporter: Taras Bobrovytsky
> Priority: Minor
> Labels: performance
>
> https://issues.cloudera.org/browse/IMPALA-3163 fixes the correctness issue
> with Decimal to Timestamp casting, but worsens the performance by about 30%.
> We want to understand why this happens and possibly fix it.
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