[
    {
      "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": "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": "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": "Timestamp",
      "type": "record",
      "docs": "the timestamp value format",
      "fields": [
        {
          "name": "location",
          "type": "string"
        },
        {
          "name": "value",
          "type": "string"
        }
      ]
    },
    {
      "namespace": "com.pingcap.simple.avro",
      "name": "UnsignedBigint",
      "type": "record",
      "docs": "unsigned bigint value format",
      "fields": [
        {
          "name": "value",
          "type": "long"
        }
      ]
    },
    {
      "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",
                "long",
                "float",
                "double",
                "string",
                "bytes",
                "com.pingcap.simple.avro.Timestamp",
                "com.pingcap.simple.avro.UnsignedBigint"
              ],
              "default": null
            }
          ],
          "default": null
        },
        {
          "name": "old",
          "type": [
            "null",
            {
              "type": "map",
              "values": [
                "null",
                "long",
                "float",
                "double",
                "string",
                "bytes",
                "com.pingcap.simple.avro.Timestamp",
                "com.pingcap.simple.avro.UnsignedBigint"
              ],
              "default": null
            }
          ],
          "default": null
        }
      ]
    },
    {
      "namespace": "com.pingcap.simple.avro",
      "name": "Message",
      "docs": "the wrapper for all kind of messages",
      "type": "record",
      "fields": [
        {
          "name": "type",
          "type": {
            "type": "enum",
            "name": "MessageType",
            "symbols": [
              "WATERMARK",
              "BOOTSTRAP",
              "DDL",
              "DML"
            ]
          }
        },
        {
          "name": "payload",
          "type": [
            "com.pingcap.simple.avro.Watermark",
            "com.pingcap.simple.avro.Bootstrap",
            "com.pingcap.simple.avro.DDL",
            "com.pingcap.simple.avro.DML"
          ]
        }
      ]
    }
  ]