fsk119 commented on code in PR #21945:
URL: https://github.com/apache/flink/pull/21945#discussion_r1112502607
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flink-table/flink-sql-gateway/src/main/java/org/apache/flink/table/gateway/rest/serde/LogicalTypeJsonSerializer.java:
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@@ -87,6 +89,10 @@ public final class LogicalTypeJsonSerializer extends
StdSerializer<LogicalType>
public static final String FIELD_NAME_CLASS = "class";
public static final String FIELD_NAME_SERIALIZER = "serializer";
+ // INTERVAL
Review Comment:
`INTERVAL` is a kind of `DataType` in the doc[1]. I think the API here aims
at the DataType rather than LogicalType in the design[2].
[1]
https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/types/#list-of-data-types
[2]
https://cwiki.apache.org/confluence/display/FLINK/FLIP-91%3A+Support+SQL+Gateway#FLIP91:SupportSQLGateway-SerializeanddeserializetheResultSet
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