wuchong commented on a change in pull request #11190: [FLINK-16089][docs] 
Translate "Data Type" page of "Table API & SQL" into Chinese
URL: https://github.com/apache/flink/pull/11190#discussion_r388065541
 
 

 ##########
 File path: docs/dev/table/types.zh.md
 ##########
 @@ -22,62 +22,47 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-Due to historical reasons, before Flink 1.9, Flink's Table & SQL API data 
types were
-tightly coupled to Flink's `TypeInformation`. `TypeInformation` is used in the 
DataStream
-and DataSet API and is sufficient to describe all information needed to 
serialize and
-deserialize JVM-based objects in a distributed setting.
+由于历史原因,在 Flink 1.9 之前,Flink Table & SQL API 的数据类型与 Flink 的 `TypeInformation` 
耦合紧密。`TypeInformation` 在 DataStream 和 DataSet API 中被使用,并且足以用来用于描述分布式环境中 JVM 
对象的序列化和反序列化操作所需的全部信息。
 
-However, `TypeInformation` was not designed to represent logical types 
independent of
-an actual JVM class. In the past, it was difficult to map SQL standard types 
to this
-abstraction. Furthermore, some types were not SQL-compliant and introduced 
without a
-bigger picture in mind.
+然而,`TypeInformation` 并不是被设计为表示独立于 JVM class 的逻辑类型。之前很难将 SQL 的标准类型映射到 
`TypeInformation` 抽象。此外,有一些类型并不是兼容 SQL 的并且在没有更好的规划的时候被引进。
 
 Review comment:
   ```suggestion
   然而,`TypeInformation` 并不是为独立于 JVM class 的逻辑类型而设计的。之前很难将 SQL 的标准类型映射到 
`TypeInformation` 抽象。此外,有一些类型并不是兼容 SQL 的并且引入的时候没有长远规划过。
   ```

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