[GitHub] [spark] Yikf commented on a diff in pull request #40699: [SPARK-43063][SQL] `df.show` handle null should print NULL instead of null

["Yikf (via GitHub)" <gi...@apache.org>]

Yikf commented on code in PR #40699:
URL: https://github.com/apache/spark/pull/40699#discussion_r1161694829


##########
python/pyspark/sql/column.py:
##########
@@ -304,7 +304,7 @@ def __ne__(  # type: ignore[override]
     |(value = foo)|(value <=> foo)|(value <=> NULL)|
     +-------------+---------------+----------------+
     |         true|           true|           false|
-    |         null|          false|            true|
+    |         NULL|          false|            true|

Review Comment:
   Do you mean as follows? It looks consistent with inner struct fields
   
   spark-sql CLI
   ``` shell
   spark-sql> select array(1, null);
   [1,null]
   ```
   
   df.show
   ```shell
   spark.sql("select array(1,null)").show
   +--------------+
   |array(1, NULL)|
   +--------------+
   |     [1, null]|
   +--------------+
   ```



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