anchor.diff:              "name": "server1",
               "ts_ms": 1520085153000,
               "txId": "6.28.807",
  -            "scn": 2122184,
  -            "commit_scn": 2122184,
  +            "scn": "2122184",
  +            "commit_scn": "2122184",
               "snapshot": false
           },
           "op": "d",
  
positive.code:                         "field": "txId"
                      },
                      {
                          "type": "int64",
                          "optional": true,
                          "field": "scn"
                      },
                      {
                          "type": "int64",
                          "optional": true,
                          "field": "commit_scn"
                      },
  
negative.code: |Attributes |Type |Description
  
  |[[log-miner-metrics-currentscn]]<<log-miner-metrics-currentscn, `+CurrentScn+`>>
  |`string`
  |The most recent SCN that has been processed.
  
  |[[log-miner-metrics-currentredologfilename]]<<log-miner-metrics-currentredologfilename, `+CurrentRedoLogFileName+`>>
  