[GitHub] [spark] dongjoon-hyun commented on a change in pull request #26751: [SPARK-30107][SQL] Expose nested schema pruning to all V2 sources

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dongjoon-hyun commented on a change in pull request #26751: [SPARK-30107][SQL] Expose nested schema pruning to all V2 sources
URL: https://github.com/apache/spark/pull/26751#discussion_r353464069
 
 

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 File path: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala
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 @@ -438,6 +438,22 @@ object DataSourceStrategy {
     }
   }
 
+  /**
+   * The attribute name may differ from the one in the schema if the query analyzer
+   * is case insensitive. We should change attribute names to match the ones in the schema,
+   * so we do not need to worry about case sensitivity anymore.
+   */
+  protected[sql] def normalizeExprs(
 
 Review comment:
   +1 for the decision. Let's focus the new feature first.

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