andygrove commented on code in PR #1321:
URL: https://github.com/apache/datafusion-comet/pull/1321#discussion_r1931058343
##########
spark/src/test/scala/org/apache/comet/CometExpressionSuite.scala:
##########
@@ -2701,4 +2701,20 @@ class CometExpressionSuite extends CometTestBase with
AdaptiveSparkPlanHelper {
}
}
}
+
+ test("array_compact") {
+ assume(isSpark34Plus)
+ Seq(true, false).foreach { dictionaryEnabled =>
+ withTempDir { dir =>
+ val path = new Path(dir.toURI.toString, "test.parquet")
+ makeParquetFileAllTypes(path, dictionaryEnabled = dictionaryEnabled, n
= 10000)
+ spark.read.parquet(path.toString).createOrReplaceTempView("t1")
+
+ checkSparkAnswerAndOperator(
+ sql("SELECT array_compact(array(_2)) FROM t1 WHERE _2 IS NULL"))
+ checkSparkAnswerAndOperator(
+ sql("SELECT array_compact(array(_2)) FROM t1 WHERE _2 IS NOT NULL"))
Review Comment:
One of the disadvantages of `makeParquetFileAllTypes` is that if `_2` is
null, then all other columns are also null.
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