panbingkun commented on PR #48261:
URL: https://github.com/apache/spark/pull/48261#issuecomment-2378283406
- Let me give an example of a real production environment:
```sql
CREATE TABLE t(a string, b long, data array<int>, value int) USING PARQUET;
INSERT INTO TABLE t VALUES ('a', 1, array(1, 2, 3, null), null);
INSERT INTO TABLE t VALUES ('b', 2, array(1, 2, 3, 4), 4);
INSERT INTO TABLE t VALUES ('c', 3, array(1, 2, 3, 5), 4);
INSERT INTO TABLE t VALUES ('c', 3, array(1, 2, 3, 4), null);
SELECT * FROM t;
```
- A data processor that writes the following SQL statement:
```sql
SELECT * FROM t WHERE array_contains(data, value)
```
- It is expected to obtain the following data:
```
+---+---+------------------+-----+
|a |b |data |value|
+---+---+------------------+-----+
|a |1 |[1, 2, 3, null] |null |
|b |2 |[1, 2, 3, 4] |4 |
+---+---+------------------+-----+
```
- But
```
+---+---+------------+-----+
|a |b |data |value|
+---+---+------------+-----+
|b |2 |[1, 2, 3, 4]|4 |
+---+---+------------+-----+
```
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