comphead commented on code in PR #1799:
URL: https://github.com/apache/datafusion-comet/pull/1799#discussion_r2112239658
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spark/src/main/scala/org/apache/comet/rules/CometScanRule.scala:
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@@ -118,7 +119,17 @@ case class CometScanRule(session: SparkSession) extends
Rule[SparkPlan] {
return withInfos(scanExec, fallbackReasons.toSet)
}
- val typeChecker = new CometScanTypeChecker(scanImpl)
+ val possibleDefaultValues =
getExistenceDefaultValues(scanExec.requiredSchema)
+ if (possibleDefaultValues.exists(d => {
+ d != null && (d.isInstanceOf[ArrayBasedMapData] || d
+ .isInstanceOf[GenericInternalRow] ||
d.isInstanceOf[GenericArrayData])
Review Comment:
It is nice to have a comment that...
`GenericInternalRow` probably represents `StructType` here but this is not
so obvious, wondering if that would be possible to do this check in terms of
SQL types? `StructType`, `ArrayType`, `MapType` ?
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