[CALCITE-5934] calcite avatica calculation error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: libopeng
• Created: 17/Aug/23 07:22
• Updated: 21/Aug/23 02:17
• Resolved: 17/Aug/23 08:01

Description

Here's the raw data.

> +-------+--------+-----------+------+------------+---------+---------+--------+
> | EMPNO | ENAME  | JOB       | MGR  | HIREDATE   | SAL     | COMM    | DEPTNO |
> +-------+--------+-----------+------+------------+---------+---------+--------+
> |  7369 | SMITH  | CLERK     | 7902 | 1980-12-17 |  800.00 |         |     20 |
> |  7499 | ALLEN  | SALESMAN  | 7698 | 1981-02-20 | 1600.00 |  300.00 |     30 |
> |  7521 | WARD   | SALESMAN  | 7698 | 1981-02-22 | 1250.00 |  500.00 |     30 |
> |  7566 | JONES  | MANAGER   | 7839 | 1981-02-04 | 2975.00 |         |     20 |
> |  7654 | MARTIN | SALESMAN  | 7698 | 1981-09-28 | 1250.00 | 1400.00 |     30 |
> |  7698 | BLAKE  | MANAGER   | 7839 | 1981-01-05 | 2850.00 |         |     30 |
> |  7782 | CLARK  | MANAGER   | 7839 | 1981-06-09 | 2450.00 |         |     10 |
> |  7788 | SCOTT  | ANALYST   | 7566 | 1987-04-19 | 3000.00 |         |     20 |
> |  7839 | KING   | PRESIDENT |      | 1981-11-17 | 5000.00 |         |     10 |
> |  7844 | TURNER | SALESMAN  | 7698 | 1981-09-08 | 1500.00 |    0.00 |     30 |
> |  7876 | ADAMS  | CLERK     | 7788 | 1987-05-23 | 1100.00 |         |     20 |
> |  7900 | JAMES  | CLERK     | 7698 | 1981-12-03 |  950.00 |         |     30 |
> |  7902 | FORD   | ANALYST   | 7566 | 1981-12-03 | 3000.00 |         |     20 |
> |  7934 | MILLER | CLERK     | 7782 | 1982-01-23 | 1300.00 |         |     10 |
> +-------+--------+-----------+------+------------+---------+---------+--------+ 

 

select e1.*
from "scott".emp e1
inner join "scott".emp e2 on e1.COMM=e2.COMM and ((e1.COMM is null) = (e2.COMM is null))
WHERE e1.MGR is null;
+-------+-------+-----------+-----+------------+---------+------+--------+
| EMPNO | ENAME | JOB       | MGR | HIREDATE   | SAL     | COMM | DEPTNO |
+-------+-------+-----------+-----+------------+---------+------+--------+
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
|  7839 | KING  | PRESIDENT |     | 1981-11-17 | 5000.00 |      |     10 |
+-------+-------+-----------+-----+------------+---------+------+--------+

The above sql executes the above result is wrong, 'MGR is null' has only one line of data, and the 'comm' of this line is also null, the correct result is to return empty data.

But the following sql execution results are correct.

select e1.*
from "scott".emp e1
inner join "scott".emp e2 on e1.COMM=e2.COMM   <-- Here reduce the condition 
WHERE e1.MGR is null; 
+-------+-------+-----+-----+----------+-----+------+--------+
| EMPNO | ENAME | JOB | MGR | HIREDATE | SAL | COMM | DEPTNO |
+-------+-------+-----+-----+----------+-----+------+--------+
+-------+-------+-----+-----+----------+-----+------+--------+

Issue Links

• duplicates: CALCITE-5732 EnumerableHashJoin and EnumerableMergeJoin on composite key return rows matching condition 'null = null'