MaxGekk commented on issue #23411: [SPARK-26503][CORE] Get rid of spark.sql.legacy.timeParser.enabled URL: https://github.com/apache/spark/pull/23411#issuecomment-450748446 I have found a performance issue on parsing time zone offsets in jdk 8 (fixed in jdk 9): https://bugs.openjdk.java.net/browse/JDK-8066291 and https://stackoverflow.com/questions/34374464/extremely-slow-parsing-of-time-zone-with-the-new-java-time-api /cc @hvanhovell @gatorsmile @cloud-fan
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