Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/11592#discussion_r55471461
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/conditionalExpressions.scala
---
@@ -136,7 +136,16 @@ case class CaseWhen(branches: Seq[(Expression,
Expression)], elseValue: Option[E
}
}
+ def shouldCodegen: Boolean = {
+ branches.length < CaseWhen.MAX_NUMBER_OF_SWITCHES
+ }
+
override def genCode(ctx: CodegenContext, ev: ExprCode): String = {
+ if (!shouldCodegen) {
+ // Fallback to interpreted mode if there are too many branches, or
it may reach the
+ // 64K limit (number of bytecode for single Java method).
--- End diff --
number of bytecode for single Java method -> limit on bytecode size for a
single function
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
