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https://issues.apache.org/jira/browse/SPARK-8680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davies Liu updated SPARK-8680:
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Assignee: Liang-Chi Hsieh
> PropagateTypes is very slow when there are lots of columns
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Sean Owen updated SPARK-8680:
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Component/s: SQL
> PropagateTypes is very slow when there are lots of columns
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https://issues.apache.org/jira/browse/SPARK-8680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davies Liu updated SPARK-8680:
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Description:
The time for PropagateTypes is O(N*N), N is the number of columns, which is
very slow if t
