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https://issues.apache.org/jira/browse/SPARK-46396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed SPARK-46396.
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> LegacyFastTimestampFormatter.parseOptional should not throw exception
> ---------------------------------------------------------------------
>
> Key: SPARK-46396
> URL: https://issues.apache.org/jira/browse/SPARK-46396
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.5.0
> Reporter: Gengliang Wang
> Assignee: Gengliang Wang
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.1, 4.0.0
>
>
> When setting spark.sql.legacy.timeParserPolicy=LEGACY, Spark will use the
> LegacyFastTimestampFormatter to infer potential timestamp columns. The
> inference shouldn't throw exception.
> However, when the input is 23012150952, there is exception:
> ```
> For input string: "23012150952"
> java.lang.NumberFormatException: For input string: "23012150952"
> at
> java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
> at java.base/java.lang.Integer.parseInt(Integer.java:668)
> at java.base/java.lang.Integer.parseInt(Integer.java:786)
> at
> org.apache.commons.lang3.time.FastDateParser$NumberStrategy.parse(FastDateParser.java:304)
> at
> org.apache.commons.lang3.time.FastDateParser.parse(FastDateParser.java:1045)
> at org.apache.commons.lang3.time.FastDateFormat.parse(FastDateFormat.java:651)
> at
> org.apache.spark.sql.catalyst.util.LegacyFastTimestampFormatter.parseOptional(TimestampFormatter.scala:418)
> ```
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