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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/05/21 04:08:00 UTC
[jira] [Updated] (SPARK-31762) Fix perf regression of
date/timestamp formatting in toHiveString
[ https://issues.apache.org/jira/browse/SPARK-31762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan updated SPARK-31762:
--------------------------------
Parent: SPARK-31408
Issue Type: Sub-task (was: Bug)
> 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: Sub-task
> Components: SQL
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Major
> Fix For: 3.0.0
>
>
> 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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