Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/36#discussion_r13666009
--- Diff:
tajo-core/src/main/java/org/apache/tajo/engine/function/builtin/AvgDouble.java
---
@@ -64,7 +65,11 @@ public void eval(FunctionContext ctx, Tuple params) {
@Override
public void merge(FunctionContext ctx, Tuple part) {
AvgContext avgCtx = (AvgContext) ctx;
- ProtobufDatum datum = (ProtobufDatum) part.get(0);
+ Datum d = part.get(0);
--- End diff --
Does the case occur in AvgDouble? How about other avg functions like
AvgLong or AvgFloat?
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