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Jiatao Tao commented on SPARK-28035:
this test "multiple-key equi-join is hash-join"
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https://issues.apache.org/jira/browse/SPARK-28035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16862927#comment-16862927
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Jiatao Tao commented on SPARK-28035:
The title means hash-join, but when I debug, fo