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https://issues.apache.org/jira/browse/SYSTEMML-927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm resolved SYSTEMML-927.
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Resolution: Fixed
> Missing frame schema handling on various spark instructions
> -----------------------------------------------------------
>
> Key: SYSTEMML-927
> URL: https://issues.apache.org/jira/browse/SYSTEMML-927
> Project: SystemML
> Issue Type: Bug
> Components: Runtime
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 0.11
>
>
> The spark write instruction misses to pass the frame schema into the written
> meta data with crucial performance implications on subsequent reads (e.g.,
> default string schema instead of native data types).
> Similarly, various other instructions such as castm2f, append, and left/right
> indexing have the same problem and are handled under this task as well.
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