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https://issues.apache.org/jira/browse/SPARK-48675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan reassigned SPARK-48675:
-----------------------------------
Assignee: Nikola Mandic
> Cache table doesn't work with collated column
> ---------------------------------------------
>
> Key: SPARK-48675
> URL: https://issues.apache.org/jira/browse/SPARK-48675
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Nikola Mandic
> Assignee: Nikola Mandic
> Priority: Major
>
> Following sequence of queries produces the error:
> {code:java}
> > cache lazy table t as select col from values ('a' collate utf8_lcase) as
> > (col);
> > select col from t;
> org.apache.spark.SparkException: not support type:
> org.apache.spark.sql.types.StringType@1.
> at
> org.apache.spark.sql.errors.QueryExecutionErrors$.notSupportTypeError(QueryExecutionErrors.scala:1069)
> at
> org.apache.spark.sql.execution.columnar.ColumnBuilder$.apply(ColumnBuilder.scala:200)
> at
> org.apache.spark.sql.execution.columnar.DefaultCachedBatchSerializer$$anon$1.$anonfun$next$1(InMemoryRelation.scala:85)
> at scala.collection.immutable.List.map(List.scala:247)
> at scala.collection.immutable.List.map(List.scala:79)
> at
> org.apache.spark.sql.execution.columnar.DefaultCachedBatchSerializer$$anon$1.next(InMemoryRelation.scala:84)
> at
> org.apache.spark.sql.execution.columnar.DefaultCachedBatchSerializer$$anon$1.next(InMemoryRelation.scala:82)
> at
> org.apache.spark.sql.execution.columnar.CachedRDDBuilder$$anon$2.next(InMemoryRelation.scala:296)
> at
> org.apache.spark.sql.execution.columnar.CachedRDDBuilder$$anon$2.next(InMemoryRelation.scala:293)
> ... {code}
> This is also the problem on non-lazy cached tables.
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