wangfei created SPARK-4673:
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Summary: Optimizing limit using coalesce
Key: SPARK-4673
URL: https://issues.apache.org/jira/browse/SPARK-4673
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.1.0
Reporter: wangfei
Fix For: 1.3.0
Now limit used ShuffledRDD and HashPartitioner to repartition 1 which leads to
shuffle.
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