Yin Huai created SPARK-9241:
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Summary: Supporting multiple DISTINCT columns
Key: SPARK-9241
URL: https://issues.apache.org/jira/browse/SPARK-9241
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Yin Huai
Priority: Critical
Right now the new aggregation code path only support a single distinct column
(you can use it in multiple aggregate functions in the query). We need to
support multiple distinct columns by generating a different plan for handling
multiple distinct columns (without change aggregate functions).
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