Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/18931#discussion_r163743504
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
@@ -661,6 +661,15 @@ object SQLConf {
.intConf
.createWithDefault(CodeGenerator.DEFAULT_JVM_HUGE_METHOD_LIMIT)
+ val WHOLESTAGE_SPLIT_CONSUME_FUNC_BY_OPERATOR =
+ buildConf("spark.sql.codegen.splitConsumeFuncByOperator")
+ .internal()
+ .doc("When true, whole stage codegen would put the logic of
consuming rows of each " +
+ "physical operator into individual methods, instead of a single
big method. This can be " +
+ "used to avoid oversized function that can miss the opportunity of
JIT optimization.")
+ .booleanConf
+ .createWithDefault(true)
--- End diff --
Set to true by default. If there is objection, I can change it to false.
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