dongjoon-hyun commented on a change in pull request #27888: [SPARK-31116][SQL]
Fix nested schema case-sensitivity in ParquetRowConverter
URL: https://github.com/apache/spark/pull/27888#discussion_r392548539
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala
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@@ -842,6 +842,333 @@ class FileBasedDataSourceSuite extends QueryTest
}
}
}
+
+ test("SPARK-31116: Select simple parquet with case insensitive and schema
pruning enabled") {
+ withSQLConf(
+ SQLConf.CASE_SENSITIVE.key -> "false",
+ SQLConf.NESTED_SCHEMA_PRUNING_ENABLED.key -> "true") {
+ withTempPath { dir => {
+ val path = dir.getCanonicalPath
+
+ // Prepare values for testing specific parquet record reader
+ Seq("A").toDF("camelCase").write.parquet(path)
+
+ val exactSchema = new StructType().add("camelCase", StringType)
+ checkAnswer(spark.read.schema(exactSchema).parquet(path), Row("A"))
+
+ // In case insensitive manner, parquet's column cases are ignored
+ val caseInsensitiveSchema = new StructType().add("camelcase",
StringType)
+ checkAnswer(spark.read.schema(caseInsensitiveSchema).parquet(path),
Row("A"))
+ }}
+ }
+ }
+ test("SPARK-31116: Select simple parquet with case insensitive and schema
pruning disabled") {
Review comment:
This is the same. Let's remove this irrelevant test.
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