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https://issues.apache.org/jira/browse/SPARK-57458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Max Gekk updated SPARK-57458:
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    Affects Version/s: 4.3.0
                           (was: 5.0.0)

> Support nanosecond-precision timestamp types in the XML datasource
> ------------------------------------------------------------------
>
>                 Key: SPARK-57458
>                 URL: https://issues.apache.org/jira/browse/SPARK-57458
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 4.3.0
>            Reporter: Max Gekk
>            Priority: Major
>
> Umbrella: SPARK-56822 (Timestamps with nanosecond precision).
> Add read and write support for the nanosecond-capable timestamp types 
> TIMESTAMP_NTZ(p) and TIMESTAMP_LTZ(p) (p in 7-9) so this datasource reaches 
> parity with the microsecond TimestampType / TimestampNTZType. Remove the 
> SPARK-57166 rejection guardrail (supportDataType / supportsDataType) once 
> read and write are implemented and tested, and update 
> FileBasedDataSourceSuite accordingly. Cover precisions 7-9 for both NTZ and 
> LTZ.
> Scope (XML is v1 only in the source tree):
> - Read: StaxXmlParser (parseXmlTimestamp) via TimestampFormatter parseNanos / 
> parseWithoutTimeZoneNanos.
> - Write: StaxXmlGenerator via formatNanos / formatWithoutTimeZoneNanos.
> - Schema inference: XmlInferSchema.
> - Guardrail: XmlFileFormat.



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