twalthr commented on code in PR #26022:
URL: https://github.com/apache/flink/pull/26022#discussion_r1931694563
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java:
##########
@@ -2819,6 +2819,15 @@ ANY, and(logical(LogicalTypeRoot.BOOLEAN), LITERAL)
.runtimeDeferred()
.build();
+ public static final BuiltInFunctionDefinition JSON =
+ BuiltInFunctionDefinition.newBuilder()
+ .name("JSON")
+ .kind(SCALAR)
+
.inputTypeStrategy(sequence(logical(LogicalTypeFamily.CHARACTER_STRING)))
+
.outputTypeStrategy(nullableIfArgs(explicit(DataTypes.STRING())))
+
.runtimeClass("org.apache.flink.table.runtime.functions.scalar.JsonFunction")
Review Comment:
Did you also try runtimeProvided? I don't understand why we need to provide
a runtime class that will never be used or called?
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