Maxim Gekk created SPARK-26651:
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Summary: Use Proleptic Gregorian calendar
Key: SPARK-26651
URL: https://issues.apache.org/jira/browse/SPARK-26651
Project: Spark
Issue Type: Umbrella
Components: SQL
Affects Versions: 2.4.0
Reporter: Maxim Gekk
Spark 2.4 and previous versions use a hybrid calendar - Julian + Gregorian in
date/timestamp parsing, functions and expressions. The ticket aims to switch
Spark on Proleptic Gregorian calendar, and use java.time classes introduced in
Java 8 for timestamp/date manipulations. One of the purpose of switching on
Proleptic Gregorian calendar is to conform to SQL standard which supposes such
calendar.
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