Question

我正在尝试在输入json下面转换为在保留所有元数据的同时，平整必要的列名称及其值。

下面是我在CDC用例中使用的输入json 。

{
  "type": "update",
  "timestamp": 1558346256000,
  "binlog_filename": "mysql-bin-changelog.000889",
  "binlog_position": 635,
  "database": "books",
  "table_name": "publishers",
  "table_id": 111,
  "columns": [
    {
      "id": 1,
      "name": "id",
      "column_type": 4,
      "last_value": 2,
      "value": 2
    },
    {
      "id": 2,
      "name": "name",
      "column_type": 12,
      "last_value": "Suresh",
      "value": "Suresh123"
    },
    {
      "id": 3,
      "name": "email",
      "column_type": 12,
      "last_value": "Suresh@yahoo.com",
      "value": "Suresh@yahoo.com"
    }
  ]
}

下面是预期的输出json

[
  {
    "type": "update",
    "timestamp": 1558346256000,
    "binlog_filename": "mysql-bin-changelog.000889",
    "binlog_position": 635,
    "database": "books",
    "table_name": "publishers",
    "table_id": 111,
    "columns": {
      "id": "2",
      "name": "Suresh123",
      "email": "Suresh@yahoo.com"
    }
  }
]

我尝试了以下规范，可以从中检索column对象，但无法检索其余元数据。

[
  {
    "operation": "shift",
    "spec": {
      "columns": {
        "*": {
          "@(value)": "[#1].@(1,name)"
        }
      }
    }
  }
]

非常感谢任何潜在客户。

Answer 1

我获得了上述转换的JOLT规范。如果有人偶然发现像这样的东西，我会把它张贴在这里。

[
  {
    "operation": "shift",
    "spec": {
      "columns": {
        "*": {
          "@(value)": "columns.@(1,name)"
        }
      },
      "*": "&"
    }
  }
]

Shift JOLT转换-以下转换面临的问题

1 个答案: