twalthr commented on code in PR #26516: URL: https://github.com/apache/flink/pull/26516#discussion_r2065864255
########## flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/serde/ChangelogModeJsonDeserializer.java: ########## @@ -49,8 +51,14 @@ public ChangelogMode deserialize( ChangelogMode.Builder builder = ChangelogMode.newBuilder(); JsonNode rowKindsNode = jsonParser.readValueAsTree(); for (JsonNode rowKindNode : rowKindsNode) { - RowKind rowKind = RowKind.valueOf(rowKindNode.asText().toUpperCase()); - builder.addContainedKind(rowKind); + final String rowKindText = rowKindNode.asText().toUpperCase(); Review Comment: we can also just remove this `toUpperCase` . IMHO `toUpperCase` / `toLowerCase` are just adding unnecessary runtime overhead and lead to weird bugs. ########## flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/serde/ChangelogModeJsonSerializer.java: ########## @@ -49,7 +50,12 @@ public void serialize( throws IOException { jsonGenerator.writeStartArray(); for (RowKind rowKind : changelogMode.getContainedKinds()) { - jsonGenerator.writeString(rowKind.name()); + if (Objects.requireNonNull(rowKind) == RowKind.DELETE Review Comment: ```suggestion if (rowKind == RowKind.DELETE ``` Why should this be null? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org