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https://issues.apache.org/jira/browse/SPARK-51324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-51324.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 50090
[https://github.com/apache/spark/pull/50090]
> FOR empty results throws error if nested and only statement in body.
> --------------------------------------------------------------------
>
> Key: SPARK-51324
> URL: https://issues.apache.org/jira/browse/SPARK-51324
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 4.0.0, 4.1
> Reporter: Dusan Tisma
> Assignee: Dusan Tisma
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> FOR statement will currently fail if it is nested in a compound statement, is
> the only statement in that body AND returns an empty result. For example:
> {{BEGIN}}
> {{ CREATE TABLE t (intCol INT) using parquet;}}
> {{ REPEAT}}
> {{ FOR SELECT * FROM t ORDER BY intCol DO}}
> {{ SELECT intCol;}}
> {{ END FOR;}}
> {{ UNTIL 1 = 1}}
> {{ END REPEAT;}}
> END
> throws
> {{[INTERNAL_ERROR] No more elements to iterate through in the current SQL
> compound statement. SQLSTATE: XX000}}
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