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Posted to issues@flink.apache.org by "Yaoxuan Wu (Jira)" <ji...@apache.org> on 2026/10/06 04:21:00 UTC
[jira] [Updated] (FLINK-40920) SELECT 1 / (2 + 3) fails with ClassCastException: RexCall cannot be cast to RexLiteral in ExpressionReducer
[ https://issues.apache.org/jira/browse/FLINK-40920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yaoxuan Wu updated FLINK-40920:
-------------------------------
Description:
{{*SELECT 1 / (2 + 3)*}}
{{*SELECT 1 / (2 * 3)*}}
{{*SELECT 1.0 / (2 * 3)*}}
all fail during optimization:
{code:java}
java.lang.ClassCastException: class org.apache.calcite.rex.RexCall cannot be cast to class org.apache.calcite.rex.RexLiteral at org.apache.flink.table.planner.codegen.ExpressionReducer.$anonfun$skipAndValidateExprs$2(ExpressionReducer.scala:289) at org.apache.flink.table.planner.codegen.ExpressionReducer.skipAndValidateExprs(ExpressionReducer.scala:264) at org.apache.flink.table.planner.codegen.ExpressionReducer.reduce(ExpressionReducer.scala:72) at org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:774) {code}
was:
{{*SELECT 1 / (2 + 3)*}}
{{*SELECT 1 / (2 * 3)*}}
{{*SELECT 1.0 / (2 * 3)*}}
all fail during optimization:
{code:java}
// code placeholder
{code}
java.lang.ClassCastException: class org.apache.calcite.rex.RexCall cannot be cast to class org.apache.calcite.rex.RexLiteral at org.apache.flink.table.planner.codegen.ExpressionReducer.$anonfun$skipAndValidateExprs$2(ExpressionReducer.scala:289) at org.apache.flink.table.planner.codegen.ExpressionReducer.skipAndValidateExprs(ExpressionReducer.scala:264) at org.apache.flink.table.planner.codegen.ExpressionReducer.reduce(ExpressionReducer.scala:72) at org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:774)
> SELECT 1 / (2 + 3) fails with ClassCastException: RexCall cannot be cast to RexLiteral in ExpressionReducer
> -----------------------------------------------------------------------------------------------------------
>
> Key: FLINK-40920
> URL: https://issues.apache.org/jira/browse/FLINK-40920
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 2.3.0
> Reporter: Yaoxuan Wu
> Priority: Major
>
> {{*SELECT 1 / (2 + 3)*}}
> {{*SELECT 1 / (2 * 3)*}}
> {{*SELECT 1.0 / (2 * 3)*}}
> all fail during optimization:
> {code:java}
> java.lang.ClassCastException: class org.apache.calcite.rex.RexCall cannot be cast to class org.apache.calcite.rex.RexLiteral at org.apache.flink.table.planner.codegen.ExpressionReducer.$anonfun$skipAndValidateExprs$2(ExpressionReducer.scala:289) at org.apache.flink.table.planner.codegen.ExpressionReducer.skipAndValidateExprs(ExpressionReducer.scala:264) at org.apache.flink.table.planner.codegen.ExpressionReducer.reduce(ExpressionReducer.scala:72) at org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:774) {code}
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