Yin Huai created SPARK-9301:
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Summary: collect_set and collect_list aggregate functions
Key: SPARK-9301
URL: https://issues.apache.org/jira/browse/SPARK-9301
Project: Spark
Issue Type: Sub-task
Reporter: Yin Huai
A short introduction on how to build aggregate functions based on our new
interface can be found at
https://issues.apache.org/jira/browse/SPARK-4366?focusedCommentId=14639921&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14639921.
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