liaoxin01 opened a new pull request, #31456:
URL: https://github.com/apache/doris/pull/31456
## Proposed changes
Issue Number: close #xxx
case：
create table test_unique_key_range_tbl (
k1 date not null,
k2 bigint not null,
v1 int null,
v2 int not null
) UNIQUE KEY(`k1`, `k2`)
DISTRIBUTED BY HASH(`k2`) BUCKETS 30
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"enable_unique_key_merge_on_write" = "true"
);
insert into test_unique_key_range_tbl values ( '2024-02-18' ,
9019386549208004184 , -10 , 5 ),
( '2024-02-18' , 9208781524087970597 , 0 , 5 );
select k1, v1, v2 from test_unique_key_range_tbl where k1 = '2024-02-18'
order by 1, 2, 3;
+------------+------+------+
| k1 | v1 | v2 |
+------------+------+------+
| 2024-02-18 | -10 | 5 |
+------------+------+------+
1 row in set (0.14 sec)
MySQL [test]> select k1,k2, v1, v2 from test_unique_key_range_tbl where k1 =
'2024-02-18' order by 1, 2, 3;
+------------+---------------------+------+------+
| k1 | k2 | v1 | v2 |
+------------+---------------------+------+------+
| 2024-02-18 | 9019386549208004184 | -10 | 5 |
| 2024-02-18 | 9208781524087970597 | 0 | 5 |
+------------+---------------------+------+------+
which introduce by：#21770
solution:
when filed is null，we encode a value greater than the KEY_NORMAL_MARKER by
1.
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