Maxim Gekk created SPARK-31762:
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Summary: Fix perf regression of date/timestamp formatting in
toHiveString
Key: SPARK-31762
URL: https://issues.apache.org/jira/browse/SPARK-31762
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.0.0, 3.1.0
Reporter: Maxim Gekk
HiveResult.toHiveString has to convert incoming Java date/timestamps types to
days/microseconds because existing API of DateFormatter/TimestampFormatter
don't accept java.sql.Timestamp/java.util.Date and
java.time.Instant/java.time.LocalDate. Internally, the formatters perform
conversions to Java types again. This badly impacts on the performance. The
ticket aims to add new APIs to DateFormatter and TimestampFormatter that should
accept Java types.
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