loudongfeng commented on code in PR #5048:
URL: https://github.com/apache/incubator-gluten/pull/5048#discussion_r1536970482
##########
shims/common/src/main/scala/io/glutenproject/GlutenConfig.scala:
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@@ -1691,4 +1693,10 @@ object GlutenConfig {
.doc("Force fallback for orc char type scan.")
.booleanConf
.createWithDefault(true)
+
+ val COLUMNAR_NATIVE_CAST_AGGREGATE_ENABLED =
+ buildConf("spark.gluten.sql.columnar.cast.avg")
+ .internal()
+ .booleanConf
+ .createWithDefault(true)
Review Comment:
We can disable this type cast when we are sure no overflow will happen,
thereby improving the performance of some cases.
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