snuyanzin commented on code in PR #21993:
URL: https://github.com/apache/flink/pull/21993#discussion_r1125750431
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/strategies/ArrayElementArgumentTypeStrategy.java:
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@@ -31,24 +31,28 @@
import java.util.Optional;
-import static
org.apache.flink.table.types.logical.utils.LogicalTypeCasts.supportsImplicitCast;
-
/** Specific {@link ArgumentTypeStrategy} for {@link
BuiltInFunctionDefinitions#ARRAY_CONTAINS}. */
@Internal
class ArrayElementArgumentTypeStrategy implements ArgumentTypeStrategy {
+ private final boolean preserveNullability;
+
+ public ArrayElementArgumentTypeStrategy(boolean preserveNullability) {
+ this.preserveNullability = preserveNullability;
+ }
+
@Override
public Optional<DataType> inferArgumentType(
CallContext callContext, int argumentPos, boolean throwOnFailure) {
final ArrayType haystackType =
(ArrayType)
callContext.getArgumentDataTypes().get(0).getLogicalType();
final LogicalType haystackElementType = haystackType.getElementType();
- final LogicalType needleType =
-
callContext.getArgumentDataTypes().get(argumentPos).getLogicalType();
- if (supportsImplicitCast(needleType, haystackElementType)) {
Review Comment:
`haystackElementType` should be nullable or not depending on `needle` type
nullability.
Then `supportsImplicitCast` will keep working.
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