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https://issues.apache.org/jira/browse/SPARK-38977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh reassigned SPARK-38977:
-----------------------------------
Assignee: Anton Okolnychyi
> Fix schema pruning with correlated subqueries
> ---------------------------------------------
>
> Key: SPARK-38977
> URL: https://issues.apache.org/jira/browse/SPARK-38977
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.2.0, 3.2.1, 3.3.0
> Reporter: Anton Okolnychyi
> Assignee: Anton Okolnychyi
> Priority: Major
>
> Schema pruning fails for some queries with correlated subqueries.
> {noformat}
> sql(
> s"""SELECT name FROM contacts c
> |WHERE
> | EXISTS (SELECT 1 FROM ids i WHERE i.value = c.id)
> | AND
> | EXISTS (SELECT 1 FROM first_names n WHERE c.name.first = n.value)
> |""".stripMargin)
> {noformat}
> {noformat}
> [info] org.apache.spark.SparkException: Failed to merge fields 'value' and
> 'value'. Failed to merge incompatible data types int and string
> [info] at
> org.apache.spark.sql.errors.QueryExecutionErrors$.failedMergingFieldsError(QueryExecutionErrors.scala:936)
> {noformat}
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