[
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "DataType",
    "type": "record",
    "docs": "each column's mysql type information",
    "fields": [
      {
        "name": "mysqlType",
        "type": "string"
      },
      {
        "name": "charset",
        "type": "string"
      },
      {
        "name": "collate",
        "type": "string"
      },
      {
        "name": "length",
        "type": "long"
      },
      {
        "name": "decimal",
        "type": [
          "null",
          "int"
        ],
        "default": null
      },
      {
        "name": "elements",
        "type": [
          "null",
          {
            "type": "array",
            "items": "string"
          }
        ],
        "default": null
      },
      {
        "name": "unsigned",
        "type": [
          "null",
          "boolean"
        ],
        "default": null
      },
      {
        "name": "zerofill",
        "type": [
          "null",
          "boolean"
        ],
        "default": null
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "ColumnSchema",
    "type": "record",
    "docs": "each column's schema information",
    "fields": [
      {
        "name": "name",
        "type": "string"
      },
      {
        "name": "dataType",
        "type": "com.pingcap.simple.avro.DataType"
      },
      {
        "name": "nullable",
        "type": "boolean"
      },
      {
        "name": "default",
        "type": [
          "null",
          "string"
        ]
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "IndexSchema",
    "type": "record",
    "docs": "each index's schema information",
    "fields": [
      {
        "name": "name",
        "type": "string"
      },
      {
        "name": "unique",
        "type": "boolean"
      },
      {
        "name": "primary",
        "type": "boolean"
      },
      {
        "name": "nullable",
        "type": "boolean"
      },
      {
        "name": "columns",
        "type": {
          "type": "array",
          "items": "string"
        }
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "TableSchema",
    "type": "record",
    "docs": "table schema information",
    "fields": [
      {
        "name": "database",
        "type": "string"
      },
      {
        "name": "table",
        "type": "string"
      },
      {
        "name": "tableID",
        "type": "long"
      },
      {
        "name": "version",
        "type": "long"
      },
      {
        "name": "columns",
        "type": {
          "type": "array",
          "items": "com.pingcap.simple.avro.ColumnSchema"
        }
      },
      {
        "name": "indexes",
        "type": {
          "type": "array",
          "items": "com.pingcap.simple.avro.IndexSchema"
        }
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "Checksum",
    "type": "record",
    "docs": "event's e2e checksum information",
    "fields": [
      {
        "name": "version",
        "type": "int"
      },
      {
        "name": "corrupted",
        "type": "boolean"
      },
      {
        "name": "current",
        "type": "long"
      },
      {
        "name": "previous",
        "type": "long"
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "Watermark",
    "type": "record",
    "docs": "the message format of the watermark event",
    "fields": [
      {
        "name": "version",
        "type": "int"
      },
      {
        "name": "type",
        "type": "string"
      },
      {
        "name": "commitTs",
        "type": "long"
      },
      {
        "name": "buildTs",
        "type": "long"
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "Bootstrap",
    "type": "record",
    "docs": "the message format of the bootstrap event",
    "fields": [
      {
        "name": "version",
        "type": "int"
      },
      {
        "name": "type",
        "type": "string"
      },
      {
        "name": "buildTs",
        "type": "long"
      },
      {
        "name": "tableSchema",
        "type": "com.pingcap.simple.avro.TableSchema"
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "DDL",
    "type": "record",
    "docs": "the message format of the DDL event",
    "fields": [
      {
        "name": "version",
        "type": "int"
      },
      {
        "name": "type",
        "type": {
          "type": "enum",
          "name": "DDLType",
          "symbols": [
            "CREATE",
            "ALTER",
            "ERASE",
            "RENAME",
            "TRUNCATE",
            "CINDEX",
            "DINDEX",
            "QUERY"
          ]
        }
      },
      {
        "name": "sql",
        "type": "string"
      },
      {
        "name": "commitTs",
        "type": "long"
      },
      {
        "name": "buildTs",
        "type": "long"
      },
      {
        "name": "tableSchema",
        "type": [
          "null",
          "com.pingcap.simple.avro.TableSchema"
        ],
        "default": null
      },
      {
        "name": "preTableSchema",
        "type": [
          "null",
          "com.pingcap.simple.avro.TableSchema"
        ],
        "default": null
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "DML",
    "type": "record",
    "docs": "the message format of the DML event",
    "fields": [
      {
        "name": "version",
        "type": "int"
      },
      {
        "name": "database",
        "type": "string"
      },
      {
        "name": "table",
        "type": "string"
      },
      {
        "name": "tableID",
        "type": "long"
      },
      {
        "name": "type",
        "type": {
          "type": "enum",
          "name": "DMLType",
          "symbols": [
            "INSERT",
            "UPDATE",
            "DELETE"
          ]
        }
      },
      {
        "name": "commitTs",
        "type": "long"
      },
      {
        "name": "buildTs",
        "type": "long"
      },
      {
        "name": "schemaVersion",
        "type": "long"
      },
      {
        "name": "claimCheckLocation",
        "type": [
          "null",
          "string"
        ],
        "default": null
      },
      {
        "name": "handleKeyOnly",
        "type": [
          "null",
          "boolean"
        ],
        "default": null
      },
      {
        "name": "checksum",
        "type": [
          "null",
          "com.pingcap.simple.avro.Checksum"
        ],
        "default": null
      },
      {
        "name": "data",
        "type": [
          "null",
          {
            "type": "map",
            "values": [
              "null",
              "int",
              "long",
              "float",
              "double",
              "string",
              "boolean",
              "bytes"
            ],
            "default": null
          }
        ],
        "default": null
      },
      {
        "name": "old",
        "type": [
          "null",
          {
            "type": "map",
            "values": [
              "null",
              "int",
              "long",
              "float",
              "double",
              "string",
              "boolean",
              "bytes"
            ],
            "default": null
          }
        ],
        "default": null
      }
    ]
  },
  {
    "namespace": "com.pingcap.simple.avro",
    "name": "Message",
    "docs": "the wrapper for all kind of messages",
    "type": "record",
    "fields": [
      {
        "name": "payload",
        "type": [
          "com.pingcap.simple.avro.Watermark",
          "com.pingcap.simple.avro.Bootstrap",
          "com.pingcap.simple.avro.DDL",
          "com.pingcap.simple.avro.DML"
        ]
      }
    ]
  }
]