KurtYoung commented on a change in pull request #8435:
[FLINK-12443][table-planner-blink] Replace InternalType with LogicalType in
blink
URL: https://github.com/apache/flink/pull/8435#discussion_r290569286
##########
File path:
flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/functions/aggfunctions/AvgAggFunction.java
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@@ -47,7 +44,7 @@
private UnresolvedReferenceExpression sum = new
UnresolvedReferenceExpression("sum");
private UnresolvedReferenceExpression count = new
UnresolvedReferenceExpression("count");
- public abstract TypeInformation getSumType();
+ public abstract DataType getSumType();
Review comment:
Why don't use `LogicalType` here? Do we want to support
`DeclarativeAggregateFunction` to choose physical storage for acc buffer?
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