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https://issues.apache.org/jira/browse/SPARK-12691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15096247#comment-15096247
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Allen Liang commented on SPARK-12691:
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Hi Bo Meng, do you have any comments in response to my reply.
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https://issues.apache.org/jira/browse/SPARK-12691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15090896#comment-15090896
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Allen Liang commented on SPARK-12691:
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Hi Bo Meng,
I understand you point, but why size of dataframe
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Allen Liang commented on SPARK-12691:
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Hi Bo Meng,
I understand your point, but I don't think this
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Allen Liang commented on SPARK-12691:
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Hi Bo Meng,
I understand your point, but I don't think this
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https://issues.apache.org/jira/browse/SPARK-12691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15088354#comment-15088354
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Bo Meng commented on SPARK-12691:
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I believe this is not a bug. "unionAll" is equal to "UNION ALL" in SQL