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Posted to issues@spark.apache.org by "Gengliang Wang (Jira)" <ji...@apache.org> on 2023/02/24 18:58:00 UTC
[jira] [Updated] (SPARK-42286) Fix internal error for valid CASE WHEN expression with CAST when inserting into a table
[ https://issues.apache.org/jira/browse/SPARK-42286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gengliang Wang updated SPARK-42286:
-----------------------------------
Affects Version/s: (was: 3.3.0)
> Fix internal error for valid CASE WHEN expression with CAST when inserting into a table
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-42286
> URL: https://issues.apache.org/jira/browse/SPARK-42286
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.3.1, 3.3.2, 3.4.0
> Reporter: Runyao.Chen
> Assignee: Runyao.Chen
> Priority: Major
> Fix For: 3.4.0
>
>
> ```
> spark-sql> create or replace table es570639t1 as select x FROM values (1), (2), (3) as tab(x);
> spark-sql> create or replace table es570639t2 (x Decimal(9, 0));
> spark-sql> insert into es570639t2 select 0 - (case when x = 1 then 1 else x end) from es570639t1 where x = 1;
> ```
> hits the following internal error
> org.apache.spark.SparkException: [INTERNAL_ERROR] Child is not Cast or ExpressionProxy of Cast
>
> Stack trace:
> org.apache.spark.SparkException: [INTERNAL_ERROR] Child is not Cast or ExpressionProxy of Cast at org.apache.spark.SparkException$.internalError(SparkException.scala:78) at org.apache.spark.SparkException$.internalError(SparkException.scala:82) at org.apache.spark.sql.catalyst.expressions.CheckOverflowInTableInsert.checkChild(Cast.scala:2693) at org.apache.spark.sql.catalyst.expressions.CheckOverflowInTableInsert.withNewChildInternal(Cast.scala:2697) at org.apache.spark.sql.catalyst.expressions.CheckOverflowInTableInsert.withNewChildInternal(Cast.scala:2683) at org.apache.spark.sql.catalyst.trees.UnaryLike.$anonfun$mapChildren$5(TreeNode.scala:1315) at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:106) at org.apache.spark.sql.catalyst.trees.UnaryLike.mapChildren(TreeNode.scala:1314) at org.apache.spark.sql.catalyst.trees.UnaryLike.mapChildren$(TreeNode.scala:1309) at org.apache.spark.sql.catalyst.expressions.UnaryExpression.mapChildren(Expression.scala:636) at org.apache.spark.sql.catalyst.trees.TreeNode.transformUpWithPruning(TreeNode.scala:570) at org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformUpWithPruning$1(TreeNode.scala:570)
>
> This internal error comes from `CheckOverflowInTableInsert``checkChild`, where we covered only `Cast` expr and `ExpressionProxy` expr, but not the `CaseWhen` expr.
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