Maxim Gekk created SPARK-31445:
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Summary: Avoid floating-point division in millisToDays
Key: SPARK-31445
URL: https://issues.apache.org/jira/browse/SPARK-31445
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.5
Reporter: Maxim Gekk
As the benchmark https://github.com/MaxGekk/spark/pull/27, and comparison to
Spark 3.0+an optimisation of fromJavaDate in
https://github.com/apache/spark/pull/28205 show that floating-point ops in
millisToDays badly impact on the performance of conversion java.sql.Date to
Catalyst's date values. The ticket aims to replace double ops by int/long ops.
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