Recently discovered the powerful function of mysql, you can directly query the data of a specific value in the entire json:
The field content corresponding to json is like this:
The content corresponding to msg_content is the json field:
{
"fileName":"测非编1.mp4",
"filePath":"/mnt/windows/folderscan/uploadAndTask/91/测非编1.mp4",
"taskName":"截取首帧失败",
"taskFailStage":"1"
}
The original data is like this:
SELECT
id,
msg_code AS msgCode,
read_flag AS readFlag,
msg_content ->> '$.mediaId' as mediaId,
msg_content ->> '$.fileName' as fileName,
msg_content ->> '$.taskName' as taskName,
msg_content ->> '$.filePath' as filePath
FROM
notice_msg
WHERE
receive_user_id = '79'；
The result after splitting the query is this:
when the field is a json array:
[
{
"time": 1594034025178,
"stage": 1,
"detail": [
{
"stage": 1,
"stepName": "视频信息获取",
"createTime": 1594034024803,
"stepStatus": 1
},
{
"stage": 1,
"stepName": "首帧截取",
"createTime": 1594034025141,
"stepStatus": 1
},
{
"stage": 1,
"stepName": "预处理",
"createTime": 1594034025178,
"stepStatus": 1
}],
"status": 1
},
{
"time": 1594034025202,
"stage": 2,
"detail": [
{
"stage": 2,
"stepName": "基础数据入库",
"createTime": 1594034025202,
"stepStatus": 1
}],
"status": 1
},
{
"time": 1594034650094,
"stage": 3,
"detail": [
{
"stage": 3,
"explain": "引擎识别人脸为空",
"stepName": "本地引擎人脸检测",
"createTime": 1594034616695,
"stepStatus": 1
},
{
"stage": 3,
"explain": "识别结果81条",
"stepName": "本地引擎音频检测",
"createTime": 1594034616765,
"stepStatus": 1
},
{
"stage": 3,
"explain": "识别结果46个",
"stepName": "本地引擎场景检测",
"createTime": 1594034616838,
"stepStatus": 1
},
{
"stage": 3,
"explain": "拆条结果297条",
"stepName": "智能拆条",
"createTime": 1594034650094,
"stepStatus": 1
},
{
"stage": 3,
"explain": "标签结果6条",
"stepName": "智能标签",
"createTime": 1594034622152,
"stepStatus": 1
}],
"status": 1
}]
Get the values of all stages under all detail arrays:
select media_id as mediaId, task_content->'$[*].detail[*].stepStatus' as statusList from hisi_task_process
where media_id = '8a0cb043-98cd-4e60-b633-8309715bcea6'
[*]You can fill in the index of the array, and you can locate the first value in the array.