iceberg支持的数据类型

野性酷女 2022-09-06 00:14 164阅读 0赞

iceberg 0.11.1支持的数据类型如下，这些东西在iceberg官网都有，只是有时候官网打不开，所以记录下：

<table> 
 <thead> 
 <tr> 
 <th>Type</th> 
 <th>Description</th> 
 <th>Notes</th> 
 </tr> 
 </thead> 
 <tbody> 
 <tr> 
 <td><code>boolean</code></td> 
 <td>布尔型，True or false</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>int</code></td> 
 <td>32位有符号整形</td> 
 <td>Can promote to&nbsp;<code>long</code></td> 
 </tr> 
 <tr> 
 <td><code>long</code></td> 
 <td>64位有符号整形</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>float</code></td> 
 <td>单精度浮点型</td> 
 <td>Can promote to&nbsp;<code>double</code></td> 
 </tr> 
 <tr> 
 <td><code>double</code></td> 
 <td>双精度浮点型</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>decimal(P,S)</code></td> 
 <td>decimal</td> 
 <td>Scale is fixed and precision must be 38 or less</td> 
 </tr> 
 <tr> 
 <td><code>date</code></td> 
 <td>Calendar date without timezone or time</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>time</code></td> 
 <td>Time of day without date, timezone</td> 
 <td>Stored as microseconds</td> 
 </tr> 
 <tr> 
 <td><code>timestamp</code></td> 
 <td>Timestamp without timezone</td> 
 <td>Stored as microseconds</td> 
 </tr> 
 <tr> 
 <td><code>timestamptz</code></td> 
 <td>Timestamp with timezone</td> 
 <td>Stored as microseconds</td> 
 </tr> 
 <tr> 
 <td><code>string</code></td> 
 <td>Arbitrary-length character sequences</td> 
 <td>Encoded with UTF-8</td> 
 </tr> 
 <tr> 
 <td><code>fixed(L)</code></td> 
 <td>Fixed-length byte array of length L</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>binary</code></td> 
 <td>Arbitrary-length byte array</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>struct&lt;...&gt;</code></td> 
 <td>A record with named fields of any data type</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>list&lt;E&gt;</code></td> 
 <td>A list with elements of any data type</td> 
 <td></td> 
 </tr> 
 <tr> 
 <td><code>map&lt;K, V&gt;</code></td> 
 <td>A map with keys and values of any data type</td> 
 </tr> 
 </tbody> 
</table>

参考文章：

1、[https://iceberg.apache.org/schemas/][https_iceberg.apache.org_schemas]

[https_iceberg.apache.org_schemas]: https://iceberg.apache.org/schemas/