Josh Rosen created SPARK-9548:
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Summary: BytesToBytesMap could have a destructive iterator
Key: SPARK-9548
URL: https://issues.apache.org/jira/browse/SPARK-9548
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Josh Rosen
BytesToBytesMap.iterator() could be destructive, freeing each page as it moves
onto the next one. There are some circumstances where we don't want a
destructive iterator (such as when we're building a KV sorter from a map), so
there should be a flag to control this.
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