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https://issues.apache.org/jira/browse/SPARK-32526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yang Jie updated SPARK-32526:
-----------------------------
    Attachment: catalyst-failed-cases

> Let sql/catalyst module compile for Scala 2.13
> ----------------------------------------------
>
>                 Key: SPARK-32526
>                 URL: https://issues.apache.org/jira/browse/SPARK-32526
>             Project: Spark
>          Issue Type: Task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yang Jie
>            Priority: Minor
>         Attachments: catalyst-failed-cases
>
>
> sql/catalyst module has following compile errors with scala-2.13 profile:
> {code:java}
> [ERROR] [Error] 
> /Users/yangjie01/SourceCode/git/spark-mine/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:1284:
>  type mismatch;
>  found   : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)]
>  required: Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, 
> org.apache.spark.sql.catalyst.expressions.Attribute)]
> [INFO] [Info] : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)] <: 
> Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, 
> org.apache.spark.sql.catalyst.expressions.Attribute)]?
> [INFO] [Info] : false
> [ERROR] [Error] 
> /Users/baidu/SourceCode/git/spark-mine/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:1289:
>  type mismatch;
>  found   : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)]
>  required: Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, ?)]
> [INFO] [Info] : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)] <: 
> Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, ?)]?
> [INFO] [Info] : false
> [ERROR] [Error] 
> /Users/yangjie01/SourceCode/git/spark-mine/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:1297:
>  type mismatch;
>  found   : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)]
>  required: Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, 
> org.apache.spark.sql.catalyst.expressions.Attribute)]
> [INFO] [Info] : 
> scala.collection.mutable.ArrayBuffer[(org.apache.spark.sql.catalyst.expressions.Attribute,
>  org.apache.spark.sql.catalyst.expressions.Attribute)] <: 
> Seq[(org.apache.spark.sql.catalyst.expressions.Attribute, 
> org.apache.spark.sql.catalyst.expressions.Attribute)]?
> [INFO] [Info] : false
> [ERROR] [Error] 
> /Users/baidu/SourceCode/git/spark-mine/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:952:
>  type mismatch;
>  found   : 
> scala.collection.mutable.ArrayBuffer[org.apache.spark.sql.catalyst.plans.logical.LogicalPlan]
>  required: Seq[org.apache.spark.sql.catalyst.plans.logical.LogicalPlan]
> {code}
> Similar as https://issues.apache.org/jira/browse/SPARK-29292 ,  call .toSeq 
> on these to ensue they still works on 2.12.



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