Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Fixed
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2.4.0
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None
Description
There are a couple differences in Spark's TimSort and JDK 11 TimSort:
- Additional check in mergeCollapse introduced by http://hg.openjdk.java.net/jdk/jdk/rev/3a6d47df8239#l1.34
- And increased constants for stackLen (http://hg.openjdk.java.net/jdk/jdk11/file/1ddf9a99e4ad/src/java.base/share/classes/java/util/TimSort.java#l184):
The ticket aims to address the differences.