Sharad Sonker created SPARK-24457:
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Summary: Performance improvement while converting
stringToTimestamp in DateTimeUtils
Key: SPARK-24457
URL: https://issues.apache.org/jira/browse/SPARK-24457
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.3.0
Reporter: Sharad Sonker
stringToTimestamp in DateTimeUtils creates Calendar instance for each input row
even if the input timezone is same. This can be improved by caching the
calendar instance for each input timezone.
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