XMLA修改分区

{
  "alter": {
    "object": {
      "database": "test_xlma",
      "table": "banner",
      "partition": "name"
    },
    "partition": {
      "name": "banner",
      "source": {
        "type": "m",
        "expression": [
          "let",
          "    Source = #\"SQL/LX\\l1;test\",",
          "    dbo_banner11 = Source{[Schema=\"dbo\",Item=\"banner\"]}[Data]",
          "in",
          "    dbo_banner11"
        ]
      }
    }
  }
}