taiyang-li commented on issue #6588:
URL:
https://github.com/apache/incubator-gluten/issues/6588#issuecomment-2258148600
线索2
native insert with `SET spark.sql.storeAssignmentPolicy = ANSI`. Notice
that `ANSI` is default value.
```
$ orc-contents
./part-00000-f7df5042-0bd8-4831-a40f-2b43d2309b3f.c000.lz4.orc
{"a": 0, "b": [{"key": "t1", "value": "a"}, {"key": "t2", "value": "b"}],
"c": {"d": "1", "e": null}}
```
```
0: jdbc:hive2://localhost:10000/> select * from tbl;
+----+----------------------+---------------------+-------------+
| a | b | c | day |
+----+----------------------+---------------------+-------------+
| 0 | {"t1":"a","t2":"b"} | {"d":"1","e":null} | 2024-01-08 |
+----+----------------------+---------------------+-------------+
1 row selected (0.284 seconds)
```
native insert with `SET spark.sql.storeAssignmentPolicy = LEGACY`
```
$ orc-contents
./part-00000-0c3bb661-97e9-4839-88ac-2ecb5d19a4e5.c000.lz4.orc
{"a": 0, "b": [{"key": "t1", "value": "a"}, {"key": "t2", "value": "b"}],
"c": {"1": "1", "2": null}}
```
```
0: jdbc:hive2://localhost:10000/> select * from tbl;
+----+----------------------+-------+-------------+
| a | b | c | day |
+----+----------------------+-------+-------------+
| 0 | {"t1":"a","t2":"b"} | NULL | 2024-01-08 |
+----+----------------------+-------+-------------+
1 row selected (0.899 seconds)
```
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