kunal642 commented on a change in pull request #3861:
URL: https://github.com/apache/carbondata/pull/3861#discussion_r480276719
##########
File path:
integration/spark/src/main/scala/org/apache/spark/sql/secondaryindex/optimizer/CarbonSecondaryIndexOptimizer.scala
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@@ -824,6 +904,57 @@ class CarbonSecondaryIndexOptimizer(sparkSession:
SparkSession) {
}
}
+ private def checkIfPushDownOrderByLimitAndNotNullFilter(literal: Literal,
sort: Sort,
+ filter: Filter): Unit = {
+ // 1. check all the filter columns present in SI
+ val originalFilterAttributes = filter.condition collect {
+ case attr: AttributeReference =>
+ attr.name.toLowerCase
+ }
+ val filterAttributes = filter.condition collect {
+ case attr: AttributeReference => attr.name.toLowerCase
+ }
+ val indexTableRelation = MatchIndexableRelation.unapply(filter.child).get
+ val matchingIndexTables = CarbonCostBasedOptimizer.identifyRequiredTables(
+ filterAttributes.toSet.asJava,
+
CarbonIndexUtil.getSecondaryIndexes(indexTableRelation).mapValues(_.toList.asJava).asJava)
+ .asScala
+ val databaseName = filter.child.asInstanceOf[LogicalRelation].relation
Review comment:
why not use `indexTableRelation.carbonRelation.databaseName`
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