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https://issues.apache.org/jira/browse/SPARK-10371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng updated SPARK-10371:
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Priority: Critical (was: Major)
> Optimize sequential projections
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https://issues.apache.org/jira/browse/SPARK-10371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng updated SPARK-10371:
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Assignee: Nong Li
> Optimize sequential projections
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https://issues.apache.org/jira/browse/SPARK-10371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng updated SPARK-10371:
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Description:
In ML pipelines, each transformer/estimator appends new columns to the input
