Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7904#discussion_r36282569
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/OuterJoin.scala ---
@@ -63,10 +74,12 @@ trait HashOuterJoin {
case LeftOuter => (rightKeys, leftKeys)
case x =>
throw new IllegalArgumentException(
- s"HashOuterJoin should not take $x as the JoinType")
+ s"${getClass.getSimpleName} should not take $x as the JoinType")
}
protected[this] def isUnsafeMode: Boolean = {
+ // TODO(josh): there is an existing bug here: this should also check
whether unsafe mode
+ // is enabled. also, the default for self.codegenEnabled looks
inconsistent to me.
(self.codegenEnabled && joinType != FullOuter
--- End diff --
Pretty sure there's a bug here (see above comment): if unsafe is disabled
then we should never generate unsafe projections.
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