diff --git a/reference/tools/ticdc/column-ddl-type.md b/reference/tools/ticdc/column-ddl-type.md
index af78e330cb2e..9d519c44c7db 100644
--- a/reference/tools/ticdc/column-ddl-type.md
+++ b/reference/tools/ticdc/column-ddl-type.md
@@ -9,36 +9,36 @@ Column 和 DDL 的类型码是由 [TiCDC Open Protocol](/reference/tools/ticdc/o
 
 ## Column Type Code
 
-| 类型         | Code |
-| :---------- | :--- |
-| Decimal     | 0    |
-| Tiny        | 1    |
-| Short       | 2    |
-| Long        | 3    |
-| Float       | 4    |
-| Double      | 5    |
-| Null        | 6    |
-| Timestamp   | 7    |
-| Longlong    | 8    |
-| Int24       | 9    |
-| Date        | 10   |
-| Duration    | 11   |
-| Datetime    | 12   |
-| Year        | 13   |
-| New Date    | 14   |
-| Varchar     | 15   |
-| Bit         | 16   |
-| JSON        | 0xf5 |
-| New Decimal | 0xf6 |
-| Enum        | 0xf7 |
-| Set         | 0xf8 |
-| Tiny Blob   | 0xf9 |
-| Medium Blob | 0xfa |
-| Long Blob   | 0xfb |
-| Blob        | 0xfc |
-| Var String  | 0xfd |
-| String      | 0xfe |
-| Geometry    | 0xff |
+| 类型         | Code | 输出示例 | 说明 |
+| :---------- | :--- | :------ | :-- |
+| Decimal     | 0    | {"t":0,"v":"129012.1230000"} | |
+| Tiny/Bool   | 1    | {"t":1,"v":1} | |
+| Short       | 2    | {"t":2,"v":1} | |
+| Long        | 3    | {"t":3,"v":123} | |
+| Float       | 4    | {"t":4,"v":153.123} | |
+| Double      | 5    | {"t":5,"v":153.123} | |
+| Null        | 6    | {"t":6,"v":null} | |
+| Timestamp   | 7    | {"t":7,"v":"1973-12-30 15:30:00"} | |
+| Longlong    | 8    | {"t":8,"v":123} | |
+| Int24       | 9    | {"t":9,"v":123} | |
+| Date        | 10   | {"t":10,"v":"2000-01-01"} | |
+| Duration    | 11   | {"t":11,"v":"23:59:59"} | |
+| Datetime    | 12   | {"t":12,"v":"2015-12-20 23:58:58"} | |
+| Year        | 13   | {"t":13,"v":1970} | |
+| New Date    | 14   | {"t":14,"v":"2000-01-01"} | |
+| Varchar     | 15   | {"t":15,"v":"测试"} | value 编码为 UTF-8 |
+| Bit         | 16   | {"t":16,"v":81} | |
+| JSON        | 245  | {"t":245,"v":"{\\"key1\\": \\"value1\\"}"} | |
+| New Decimal | 246  | {"t":246,"v":"129012.1230000"} | |
+| Enum        | 247  | {"t":247,"v":1} | |
+| Set         | 248  | {"t":248,"v":3} | |
+| Tiny Blob   | 249  | {"t":249,"v":"5rWL6K+VdGV4dA=="} | value 编码为 Base64 |
+| Medium Blob | 250  | {"t":250,"v":"5rWL6K+VdGV4dA=="} | value 编码为 Base64 |
+| Long Blob   | 251  | {"t":251,"v":"5rWL6K+VdGV4dA=="} | value 编码为 Base64 |
+| Blob        | 252  | {"t":252,"v":"5rWL6K+VdGV4dA=="} | value 编码为 Base64 |
+| Var String  | 253  | {"t":253,"v":"测试"} | value 编码为 UTF-8 |
+| String      | 254  | {"t":254,"v":"测试"} | value 编码为 UTF-8 |
+| Geometry    | 255  |  | 尚不支持 |
 
 ## DDL Type Code