liuyongvs commented on code in PR #22917:
URL: https://github.com/apache/flink/pull/22917#discussion_r1247894065
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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:
@hanyuzheng7 why my strategy answer is -1。my strategy is get arg0 's element
type. for your example is it not null. Then force nullable to int
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