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https://issues.apache.org/jira/browse/SPARK-54743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-54743:
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Labels: pull-request-available (was: )
> Fix NPE in getJoinedRows when skipNullsForStreamStreamJoins is enabled
> ----------------------------------------------------------------------
>
> Key: SPARK-54743
> URL: https://issues.apache.org/jira/browse/SPARK-54743
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 4.2.0
> Reporter: Eric Marnadi
> Priority: Major
> Labels: pull-request-available
>
> When skipNullsForStreamStreamJoins is enabled, null values can exist in the
> state store. The getJoinedRows() method would fail with NPE when:
> # It encounters a null value while iterating
> # It tries to generate a joined row from the null value
> # It attempts to update the matched flag by calling put() with the null value
> This bug affects both state format versions 2 and 3, as they share the same
> KeyWithIndexToValueRowConverterFormatV2 implementation. The only
> difference between v2 and v3 is that v3 uses virtual column families.
> The issue was not caught by existing unit tests because they only test the
> get() method, not getJoinedRows(). The get() method simply returns values
> without attempting to update matched flags or put values back to the store.
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