MaxGekk commented on a change in pull request #33210:
URL: https://github.com/apache/spark/pull/33210#discussion_r663801703
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File path: sql/core/src/test/scala/org/apache/spark/sql/CsvFunctionsSuite.scala
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@@ -279,4 +281,31 @@ class CsvFunctionsSuite extends QueryTest with
SharedSparkSession {
}
}
}
+
+ test("SPARK-35998: Make from_csv/to_csv to handle year-month intervals
properly") {
+ val ymDF = Seq(Period.of(1, 2, 0)).toDF
+ Seq(
+ (YearMonthIntervalType(), "INTERVAL '1-2' YEAR TO MONTH", Period.of(1,
2, 0)),
+ (YearMonthIntervalType(YEAR), "INTERVAL '1' YEAR", Period.of(1, 0, 0)),
+ (YearMonthIntervalType(MONTH), "INTERVAL '14' MONTH", Period.of(1, 2, 0))
+ ).foreach { case (toCsvDtype, toCsvExpected, fromCsvExpected) =>
+ val toCsvDF = ymDF.select(to_csv(struct($"value" cast toCsvDtype)) as
"csv")
+ checkAnswer(toCsvDF, Row(toCsvExpected))
+
+ DataTypeTestUtils.yearMonthIntervalTypes.foreach { fromCsvDtype =>
+ val fromJsonDF = toCsvDF
Review comment:
fromJsonDF -> fromCsvDF
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