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https://issues.apache.org/jira/browse/SPARK-37716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allison Wang updated SPARK-37716:
---------------------------------
Summary: Allow LateralJoin node to host non-deterministic expressions when
the outer query is a single row relation (was: Allow LateralJoin node to host
non-deterministic expressions)
> Allow LateralJoin node to host non-deterministic expressions when the outer
> query is a single row relation
> ----------------------------------------------------------------------------------------------------------
>
> Key: SPARK-37716
> URL: https://issues.apache.org/jira/browse/SPARK-37716
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 3.2.1
> Reporter: Allison Wang
> Priority: Major
>
> After https://issues.apache.org/jira/browse/SPARK-37199, Analyzer will block
> LateralJoin that has non-deterministic lateral subqueries. This should be
> allowed.
> For example:
> Query:
>
> {code:java}
> SELECT t1.* FROM t1 JOIN LATERAL (SELECT rand(0) + c2 AS c3); {code}
> Result:
> {code:java}
> org.apache.spark.sql.AnalysisException: nondeterministic expressions are only
> allowed in
> Project, Filter, Aggregate, Window, or Generate, but found:
> lateralsubquery(spark_catalog.default.t1.c2)
> in operator LateralJoin lateral-subquery#1 [c2#3], Inner {code}
>
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