As ypercube has stated in the comments, and you have confirmed, triggers are the culprit here!
UPDATE with no subquery throws error: Subquery returns more than 1 row
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28-06-2022 - |
Вопрос
Can somebody explain to me this... :) (using MySQL 5.6.13)
UPDATE offer SET cosid=1 WHERE id=40;
Query OK, 1 row affected (0.07 sec)
Rows matched: 1 Changed: 1 Warnings: 0
UPDATE offer SET cosid=4 WHERE id=40;
ERROR 1242 (21000): Subquery returns more than 1 row
UPDATE offer SET cosid=5 WHERE id=40;
Query OK, 1 row affected (0.04 sec)
Rows matched: 1 Changed: 1 Warnings: 0
Every valid index is accepted except of four :(
This is offer table:
CREATE TABLE offer (
id bigint(20) NOT NULL AUTO_INCREMENT,
authorid bigint(20) NOT NULL,
offered_designid bigint(20) NOT NULL,
cdid bigint(20),
cosid bigint(20) NOT NULL,
PRIMARY KEY (id),
UNIQUE INDEX (id)) ENGINE=InnoDB;
Any suggestion what might be wrong?
EDITED: This is current cos table:
SELECT * FROM cos;
+----+-------------+
| id | offer_state |
+----+-------------+
| 1 | active |
| 5 | cancelled |
| 3 | inactive |
| 4 | realized |
| 2 | waiting |
+----+-------------+
5 rows in set (0.00 sec)
Решение
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