cloud-fan commented on code in PR #50108:
URL: https://github.com/apache/spark/pull/50108#discussion_r1979390083
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sql/core/src/test/scala/org/apache/spark/sql/QueryTest.scala:
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@@ -326,7 +326,13 @@ object QueryTest extends Assertions {
// For binary arrays, we convert it to Seq to avoid of calling
java.util.Arrays.equals for
// equality test.
val converted: Seq[Row] = answer.map(prepareRow)
- if (!isSorted) converted.sortBy(_.toString()) else converted
+ // SPARK-51349: "null" and null had the same precedence in sorting
+ if (!isSorted) converted.sortBy( r =>
+ Row(r.toSeq.map {
+ case null => (0, null)
Review Comment:
maybe a simple "encoding" is we turn a string `"null"` to something like
`"__null_string__"`
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