Github user sirpkt commented on a diff in the pull request:
https://github.com/apache/tajo/pull/454#discussion_r28209903
--- Diff:
tajo-core/src/main/java/org/apache/tajo/engine/function/window/CurrentValue.java
---
@@ -24,41 +24,34 @@
import org.apache.tajo.plan.function.WindowAggFunc;
import org.apache.tajo.storage.Tuple;
-public abstract class FirstValue extends WindowAggFunc<Datum> {
+public abstract class CurrentValue extends WindowAggFunc<Datum> {
- public FirstValue(Column[] columns) {
+ public CurrentValue(Column[] columns) {
super(columns);
}
@Override
public FunctionContext newContext() {
- return new FirstValueContext();
+ return new CurrentValueContext();
}
@Override
public void eval(FunctionContext ctx, Tuple params) {
- FirstValueContext firstValueCtx = (FirstValueContext)ctx;
- if(firstValueCtx.isSet == false) {
- firstValueCtx.isSet = true;
+ CurrentValueContext currentValueCtx = (CurrentValueContext)ctx;
if (params.get(0).isNotNull()) {
--- End diff --
You're right @jihoonson.
I'll add check code for params.
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