Maxim Gekk created SPARK-26546:
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Summary: Caching of DateTimeFormatter
Key: SPARK-26546
URL: https://issues.apache.org/jira/browse/SPARK-26546
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.0
Reporter: Maxim Gekk
Currently, instances of java.time.format.DateTimeFormatter are built each time
when new instance of Iso8601DateFormatter or Iso8601TimestampFormatter is
created which is time consuming operation because it should parse the
timestamp/date patterns. It could be useful to create a cache with key =
(pattern, locale) and value = instance of java.time.format.DateTimeFormatter.
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