wuchong commented on a change in pull request #12436:
URL: https://github.com/apache/flink/pull/12436#discussion_r433775688
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File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/codegen/calls/ScalarOperatorGens.scala
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@@ -1643,19 +1644,35 @@ object ScalarOperatorGens {
val resultTypeTerm = primitiveTypeTermForType(componentInfo)
val defaultTerm = primitiveDefaultValue(componentInfo)
+ if (index.literalValue.isDefined &&
+ index.literalValue.get.isInstanceOf[Int] &&
+ index.literalValue.get.asInstanceOf[Int] < 1) {
+ throw new ValidationException(s"Array element access needs an index
starting at 1 but was " +
Review comment:
"Array element reference requires an index starts from 1, but was"
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