KurtYoung commented on a change in pull request #8530:
[FLINK-12611][table-planner-blink] Make time indicator nullable in blink
URL: https://github.com/apache/flink/pull/8530#discussion_r291914899
##########
File path:
flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/functions/sql/ProctimeSqlFunction.java
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@@ -37,16 +34,15 @@ public ProctimeSqlFunction() {
super(
"PROCTIME",
SqlKind.OTHER_FUNCTION,
- ReturnTypes.explicit(new
ProctimeRelProtoDataType()),
+ ReturnTypes.explicit(factory ->
Review comment:
Why don't we keep align with legacy planner's ProctimeSqlFunction?
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