Michael Armbrust created SPARK-2042:
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Summary: Take triggers unneeded shuffle.
Key: SPARK-2042
URL: https://issues.apache.org/jira/browse/SPARK-2042
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 1.0.0
Reporter: Michael Armbrust
This query really shouldn't trigger a shuffle:
{code}
sql("SELECT * FROM src LIMIT 10").take(5)
{code}
One fix would be to make the following changes:
* Fix take to insert a logical limit and then collect()
* Add a rule for collapsing adjacent limits
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