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https://issues.apache.org/jira/browse/SPARK-58204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-58204:
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Labels: pull-request-available (was: )
> Fix unprotected mutable state in RegExpReplace, RegExpExtractBase,
> StringTranslate, FormatNumber, and NamedLambdaVariable by marking them
> stateful
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-58204
> URL: https://issues.apache.org/jira/browse/SPARK-58204
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.5.0, 4.1.0, 4.0.0, 4.2.0, 4.3.0
> Reporter: Vinod KC
> Priority: Major
> Labels: pull-request-available
>
> Several Catalyst expressions maintain mutable state in @transient instance
> fields but do not override `stateful`, so
> `freshCopyIfContainsStatefulExpression()` never copies them.
> When the Several Catalyst expressions maintain mutable state in @transient
> instance fields but do not override `stateful`, so
> `freshCopyIfContainsStatefulExpression()` never copies them.
> When the same expression node is shared across multiple projections (e.g. via
> ConvertToLocalRelation or pipelined execution), threads race on the shared
> cache, corrupting results silently.
> Affected expressions and their mutable state:
> - RegExpReplace: lastRegex, pattern, lastReplacement, lastReplacementInUTF8
> - RegExpExtractBase (RegExpExtract, RegExpExtractAll): lastRegex, pattern
> - StringTranslate: lastMatching, lastReplace, dict
> - FormatNumber: lastDIntValue, lastDStringValue, numberFormat (DecimalFormat)
> - NamedLambdaVariable: value (AtomicReference[Any])
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