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https://issues.apache.org/jira/browse/SPARK-60686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-60686:
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Labels: pull-request-available (was: )
> Use columnar Arrow for supported pandas timestamp input in Spark Connect Rust
> -----------------------------------------------------------------------------
>
> Key: SPARK-60686
> URL: https://issues.apache.org/jira/browse/SPARK-60686
> Project: Spark
> Issue Type: Improvement
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: DB Tsai
> Assignee: DB Tsai
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> The frozen pandas timestamp 10000x3 client case takes60.83ms Rust vs1.23ms
> Python. The signed-int64 columnar input implementation in SPARK-60676/PR121
> intentionally leaves timestamps on the row path. Extend a narrow supported
> timestamp dtype/schema path through the same Arrow importer, preserving
> session timezone, aware/naive behavior, NaT/null handling, precision and
> TimestampNTZ distinctions. Unsupported conversions should retain the
> fallback. Compare baseline and candidate with the identical PR121 importer;
> include independent emitted-IPC correctness checks across timezones/DST.
> Publish only measured benefit with explicit limitations.
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