snuyanzin commented on code in PR #28688:
URL: https://github.com/apache/flink/pull/28688#discussion_r3578298983
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java:
##########
@@ -3081,6 +3081,21 @@ ANY, and(logical(LogicalTypeRoot.BOOLEAN), LITERAL)
.runtimeProvided()
.build();
+ public static final BuiltInFunctionDefinition JSON_LENGTH =
+ BuiltInFunctionDefinition.newBuilder()
+ .name("JSON_LENGTH")
+ .kind(SCALAR)
+ .inputTypeStrategy(
+ or(
+
sequence(logical(LogicalTypeFamily.CHARACTER_STRING)),
Review Comment:
may be we can add a test here and see how it behaves:
should work
or
fails with a meaningful error message
any of the cases seem ok.
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