hanyuzheng7 commented on code in PR #22917:
URL: https://github.com/apache/flink/pull/22917#discussion_r1249022952
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flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/strategies/SpecificTypeStrategies.java:
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@@ -58,8 +58,12 @@ public final class SpecificTypeStrategies {
/** See {@link ArrayTypeStrategy}. */
public static final TypeStrategy ARRAY = new ArrayTypeStrategy();
- /** See {@link ArrayElementOutputTypeStrategy}. */
- public static final TypeStrategy ARRAY_ELEMENT = new
ArrayElementOutputTypeStrategy();
+ /** Type strategy specific for array element. */
+ public static final TypeStrategy ARRAY_ELEMENT =
+ callContext ->
+ Optional.of(
Review Comment:
> @dawidwys The input will check whether it is array. If not, it will throw
exception
I don't think so, this strategy named ARRAY_ELEMENT. you must to check it's
input is array first. you cannot guarantee that others check it is array in
input strategy.
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