danny0405 commented on a change in pull request #1279: [CALCITE-3128] Joining
two tables producing only NULLs will return 0 …
URL: https://github.com/apache/calcite/pull/1279#discussion_r298077015
##########
File path:
core/src/main/java/org/apache/calcite/adapter/enumerable/EnumerableHashJoin.java
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@@ -229,7 +229,10 @@ private Result implementHashJoin(EnumerableRelImplementor
implementor, Prefer pr
Expressions.constant(joinType.generatesNullsOnLeft()))
.append(
Expressions.constant(
- joinType.generatesNullsOnRight())))).toBlock());
+ joinType.generatesNullsOnRight()))
Review comment:
Well, i only found one usage of `BuiltInMethod.HASH_JOIN`, so i'm a little
confused why we have 3 (now 4) `ExtendedEnumerable#hashJoin` methods.
Broadly i agree to add full arguments type to `BuiltInMethod#HASH_JOIN`,
thanks @rubenada !
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