alexeykudinkin commented on code in PR #7672:
URL: https://github.com/apache/hudi/pull/7672#discussion_r1104911822
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hudi-spark-datasource/hudi-spark-common/src/main/scala/org/apache/hudi/ColumnStatsIndexSupport.scala:
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@@ -209,11 +209,11 @@ class ColumnStatsIndexSupport(spark: SparkSession,
// NOTE: We're sorting the columns to make sure final index schema matches
layout
// of the transposed table
val sortedTargetColumnsSet = TreeSet(queryColumns:_*)
- val sortedTargetColumns = sortedTargetColumnsSet.toSeq
// NOTE: This is a trick to avoid pulling all of
[[ColumnStatsIndexSupport]] object into the lambdas'
// closures below
val indexedColumns = this.indexedColumns
+ val sortedTargetColumns =
sortedTargetColumnsSet.filter(indexedColumns.contains(_)).toSeq
Review Comment:
Let's rename this to be `indexedTargetColumns` to disambiguate
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hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/functional/TestColumnStatsIndex.scala:
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@@ -244,7 +247,8 @@ class TestColumnStatsIndex extends HoodieClientTestBase {
// We have to include "c1", since we sort the expected outputs by this
column
val requestedColumns = Seq("c4", "c1")
- val expectedColStatsSchema = composeIndexSchema(requestedColumns.sorted,
sourceTableSchema)
+ val realIndexColumns =
requestedColumns.filter(targetColumnsToIndex.contains(_))
Review Comment:
This filtering should be performed w/in `composeIndexSchema` itself
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