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https://issues.apache.org/jira/browse/SPARK-58309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-58309:
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Labels: pull-request-available (was: )
> now() and current_timestamp() are not anchored to the batch timestamp in
> streaming queries
> ------------------------------------------------------------------------------------------
>
> Key: SPARK-58309
> URL: https://issues.apache.org/jira/browse/SPARK-58309
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 4.2.0
> Reporter: You Zhou
> Priority: Major
> Labels: pull-request-available
>
> In micro-batch streaming, CURRENT_LIKE temporal expressions are rewritten to
> CurrentBatchTimestamp so their value is anchored to the batch timestamp
> (persisted in the offset log) and is reproducible across batch
> replays/restarts. The rewrite in MicroBatchExecution only matched
> CurrentTimestamp, missing now() (Now, a sibling under CurrentTimestampLike)
> and current_time() (CurrentTime, which also needs a TimeType branch in
> CurrentBatchTimestamp.toLiteral). As a result these fold to wall-clock time
> at plan-optimization time and produce non-deterministic values on replay.
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