1445103710 commented on issue #2513:
URL:
https://github.com/apache/incubator-dolphinscheduler/issues/2513#issuecomment-618869210
```json
{
"globalParams": [{
"prop": "yaoyao",
"direct": "IN",
"type": "VARCHAR",
"value": "111"
}],
"tasks": [{
"type": "SHELL",
"id": "tasks-79944",
"name": "测试shell命令",
"params": {
"resourceList": [],
"localParams": [],
"rawScript": "echo 1111"
},
"description": "",
"runFlag": "NORMAL",
"conditionResult": {
"successNode": [""],
"failedNode": [""]
},
"dependence": {},
"maxRetryTimes": "0",
"retryInterval": "1",
"timeout": {
"strategy": "",
"interval": null,
"enable": false
},
"taskInstancePriority": "MEDIUM",
"workerGroup": "default",
"preTasks": []
}, {
"type": "PYTHON",
"id": "tasks-20302",
"name": "测试python",
"params": {
"resourceList": [],
"localParams": [],
"rawScript": "print(222)"
},
"description": "",
"runFlag": "NORMAL",
"conditionResult": {
"successNode": [""],
"failedNode": [""]
},
"dependence": {},
"maxRetryTimes": "0",
"retryInterval": "1",
"timeout": {
"strategy": "",
"interval": null,
"enable": false
},
"taskInstancePriority": "MEDIUM",
"workerGroup": "default",
"preTasks": ["测试shell命令"]
}, {
"type": "HTTP",
"id": "tasks-23734",
"name": "测试http",
"params": {
"localParams": [],
"httpParams": [],
"url": "http://www.baidu.com";,
"httpMethod": "GET",
"httpCheckCondition": "STATUS_CODE_DEFAULT",
"condition": ""
},
"description": "",
"runFlag": "NORMAL",
"conditionResult": {
"successNode": [""],
"failedNode": [""]
},
"dependence": {},
"maxRetryTimes": "0",
"retryInterval": "1",
"timeout": {
"strategy": "",
"interval": null,
"enable": false
},
"taskInstancePriority": "MEDIUM",
"workerGroup": "default",
"preTasks": ["测试python"]
}, {
"type": "SHELL",
"id": "tasks-36312",
"name": "打印图形",
"params": {
"resourceList": [{
"id": 2,
"name": "three.sh",
"res": "test/three.sh"
}],
"localParams": [],
"rawScript": "sh test/three.sh"
},
"description": "",
"runFlag": "NORMAL",
"conditionResult": {
"successNode": [""],
"failedNode": [""]
},
"dependence": {},
"maxRetryTimes": "0",
"retryInterval": "1",
"timeout": {
"strategy": "",
"interval": null,
"enable": false
},
"taskInstancePriority": "MEDIUM",
"workerGroup": "default",
"preTasks": ["测试http"]
}, {
"type": "SQL",
"id": "tasks-90358",
"name": "mysql",
"params": {
"type": "MYSQL",
"datasource": 2,
"sql": "select * from market_gold LIMIT 1",
"udfs": "",
"sqlType": "0",
"title": "111",
"receivers": "[email protected]",
"receiversCc": "",
"showType": "TABLE",
"localParams": [],
"connParams": "",
"preStatements": [],
"postStatements": []
},
"description": "",
"runFlag": "NORMAL",
"conditionResult": {
"successNode": [""],
"failedNode": [""]
},
"dependence": {},
"maxRetryTimes": "0",
"retryInterval": "1",
"timeout": {
"strategy": "",
"interval": null,
"enable": false
},
"taskInstancePriority": "MEDIUM",
"workerGroup": "default",
"preTasks": []
}],
"tenantId": 1,
"timeout": 0
}
```
we can see ,when we save Dag the mysql preTasks is empty.
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