mgaido91 commented on a change in pull request #23171: [SPARK-26205][SQL]
Optimize InSet Expression for bytes, shorts, ints, dates
URL: https://github.com/apache/spark/pull/23171#discussion_r261231691
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
##########
@@ -171,6 +171,14 @@ object SQLConf {
.intConf
.createWithDefault(10)
+ val OPTIMIZER_INSET_SWITCH_THRESHOLD =
+ buildConf("spark.sql.optimizer.inSetSwitchThreshold")
+ .internal()
+ .doc("Configures the max set size in InSet for which Spark will generate
code with " +
+ "switch statements. This is applicable only to bytes, shorts, ints,
dates.")
+ .intConf
Review comment:
I am not sure why you'd need any extension. We have other parts of the code
with swtich which are split. I think in general it is safer to have it.
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