snuyanzin commented on code in PR #28733:
URL: https://github.com/apache/flink/pull/28733#discussion_r3574206608
##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/functions/CastFunctionITCase.java:
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@@ -132,9 +133,65 @@ Stream<TestSetSpec> getTestSetSpecs() {
specs.addAll(numericBounds());
specs.addAll(constructedTypes());
specs.addAll(bitmapCasts());
+ specs.addAll(variantCasts());
return specs.stream();
}
+ private static List<TestSetSpec> variantCasts() {
+ // A variant is produced with PARSE_JSON so that the source column
stays a STRING literal;
+ // there is no VARIANT literal to feed a source column directly. A
JSON integer is stored in
+ // the smallest integer type that fits (42 -> TINYINT), and numeric
casts are lenient, so it
+ // still widens to INT.
+ return Collections.singletonList(
Review Comment:
```suggestion
return List.of(
```
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