pgaref commented on code in PR #26719:
URL: https://github.com/apache/flink/pull/26719#discussion_r2175735020
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/codegen/calls/ScalarOperatorGens.scala:
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@@ -1423,7 +1423,7 @@ object ScalarOperatorGens {
| $resultTerm = $nullTerm ? $defaultValue : $arrayGet;
| break;
| default:
- | throw new RuntimeException("Array has more than one element.");
+ | throw new TableRuntimeException("Array has more than one
element.");
Review Comment:
Looks like the `ArrayElement` builtIn function is specific to [TableApi
](https://github.com/apache/flink/blob/master/flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java#L2434)
but I agree it would make sense to align with the rest and throw a
ValidationException
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