是什么导致这个sqlite外键不匹配?

我已经检查了 this question,并且认为我得到了答案 – 但那时我看起来并不合适.

我有以下简化示例:

CREATE TABLE pipelines (                                                        
        name VARCHAR NOT NULL,                                                  
        owner VARCHAR NOT NULL,                                                 
        description VARCHAR,                                                    
        PRIMARY KEY (name, owner),                                              
        FOREIGN KEY(owner) REFERENCES user (id)                                 
);                                                                              
CREATE TABLE tasks (                                                            
        id INTEGER NOT NULL,                                                    
        title VARCHAR,                                                          
        pipeline VARCHAR,                                                       
        owner VARCHAR,                                                          
        PRIMARY KEY (id),                                                       
        FOREIGN KEY(pipeline) REFERENCES pipelines (name),                      
        FOREIGN KEY(owner) REFERENCES pipelines (owner)                         
);                                                                              
CREATE TABLE user (                                                           
        id VARCHAR NOT NULL,                                                    
        name VARCHAR,                                                           
        password VARCHAR,                                                       
        PRIMARY KEY (id)                                                        
);                                                                              
pragma foreign_keys=on;                                                         

insert into user values ('wayne', '', '');                                    
insert into pipelines values ('pipey', 'wayne', '');                            
insert into tasks values (1, 'hello', 'pipey', 'wayne');

执行此代码时,它会失败:

$sqlite3 foo.sq3 '.read mismatch.sql'    
Error: near line 27: foreign key mismatch

通过我引用的问题列表:

>父表(用户)存在.
>存在父列(名称,所有者)
>父列实际上是主键(我原以为可能是原来的)
>子表引用父表中的所有主键列

那么世界上可能会导致这个错误呢?

documentation说:

Usually, the parent key of a foreign key constraint is the primary key of the parent table. If they are not the primary key, then the parent key columns must be collectively subject to a UNIQUE constraint or have a UNIQUE index.

在管道表中,名称和所有者列本身都不是唯一的.

我猜你真的想在tasks表中有一个两列的外键:

FOREIGN KEY(pipeline, owner) REFERENCES pipelines(name, owner)
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