| MySQL | ClickHouse |
|---|---|
| UNSIGNED TINYINT | UInt8 |
| TINYINT | Int8 |
| UNSIGNED SMALLINT | UInt16 |
| SMALLINT | Int16 |
| UNSIGNED INT, UNSIGNED MEDIUMINT | UInt32 |
| INT, MEDIUMINT | Int32 |
| UNSIGNED BIGINT | UInt64 |
| BIGINT | Int64 |
| FLOAT | Float32 |
| DOUBLE | Float64 |
| DATE | Date |
| DATETIME, TIMESTAMP | DateTime |
| BINARY | FixedString |
其他的MySQL數據類型將全部都轉換為String。
同時以上的所有類型都支持Nullable。
整型范圍
- Int8-[-128:127]
- Int16-[-32768:32767]
- Int32-[-2147483648:2147483647]
- Int64-[-9223372036854775808:9223372036854775807]
無符號整型范圍
- UInt8-[0:255]
- UInt16-[0:65535]
- UInt32-[0:4294967295]
- UInt64-[0:18446744073709551615]