wuchong commented on a change in pull request #9331:
[FLINK-13523][table-planner-blink] Verify and correct arithmetic function's
semantic for Blink planner
URL: https://github.com/apache/flink/pull/9331#discussion_r311582203
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/codegen/agg/DeclarativeAggCodeGen.scala
##########
@@ -204,8 +204,13 @@ class DeclarativeAggCodeGen(
}
def getValue(generator: ExprCodeGenerator): GeneratedExpression = {
- val resolvedGetValueExpression = function.getValueExpression
+ val expr = function.getValueExpression
.accept(ResolveReference())
+ val resolvedGetValueExpression = ApiExpressionUtils.unresolvedCall(
Review comment:
IIUC, for example, `AVG(int)` will be expressed `sum(int)/bigint_count` in
blink planner which will get `bigint` result. There are many other cases
similar to this.
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