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https://issues.apache.org/jira/browse/SPARK-54569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nishanth updated SPARK-54569:
-----------------------------
Description:
Spark currently allows implicit cartesian products during query planning
without providing any warnings to users.
As a result, cross joins often go unnoticed until execution time, where they
may cause severe performance degradation, excessive memory usage, or job
failures.
was:
Spark currently allows implicit cartesian products during query planning when
{{spark.sql.crossJoin.enabled=true}} (default) without providing any warnings
to users.
As a result, cross joins often go unnoticed until execution time, where they
may cause severe performance degradation, excessive memory usage, or job
failures.
> Add warnings for implicit cartesian products (cross joins) during query
> planning
> --------------------------------------------------------------------------------
>
> Key: SPARK-54569
> URL: https://issues.apache.org/jira/browse/SPARK-54569
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.5.0, 4.0.1
> Reporter: Nishanth
> Priority: Major
>
> Spark currently allows implicit cartesian products during query planning
> without providing any warnings to users.
> As a result, cross joins often go unnoticed until execution time, where they
> may cause severe performance degradation, excessive memory usage, or job
> failures.
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