如何在Mysql

Question

我已将以下数据插入列doc。

insert into tbl_temp (sid, doc) 
 values('M000001',
        '{"doclist":
     [{"PID":"F000001","name":"Roi","Age":"32","City":"OLI","Occ":"Reader"},
      {"PID":"F000002","name":"Joi","Age":"33","City":"LND","Occ":"Runner"},
      {"PID":"F000003","name":"Kloi","Age":"34","City":"NYC","Occ":"Writer"} 
        ]
        }'
      )

现在我想显示所有的PID，所以我在mysql中进行了如下查询。

SELECT 
    SID, 
    json_extract(doc, '$.doclist[*].PID') AS PID
FROM MAT.TBL_temp;

但我得到的结果是这样的 -

SID        Shortlisted

M000001 [＆＃34; F000001＆＃34;，＆＃34; F000002＆＃34;，＆＃34; F000003＆＃34;]

但我想要下面的结果

SID        Shortlisted
M000001    "F000001"
M000001    "F000002"
M000001    "F000003"

也不确定我为什么会得到＆＃39; []＆＃39;在输出中。

当我运行以下查询（对于单个元素）时，它工作正常

SELECT 
    SID, 
    json_extract(doc, '$.doclist[0].PID') AS PID
FROM MAT.TBL_temp;

结果：

  SID        Shortlisted
  M000001    "F000001"