authuir commented on a change in pull request #12420:
URL: https://github.com/apache/flink/pull/12420#discussion_r436322260
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File path: docs/dev/table/streaming/joins.zh.md
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@@ -22,37 +22,35 @@ specific language governing permissions and limitations
under the License.
-->
-Joins are a common and well-understood operation in batch data processing to
connect the rows of two relations. However, the semantics of joins on [dynamic
tables](dynamic_tables.html) are much less obvious or even confusing.
+Join 在批数据处理中是比较常见且广为人知的运算，一般用于连接两张关系表。然而在[动态表](dynamic_tables.html)中 Join
的语义会更难以理解甚至让人困惑。
-Because of that, there are a couple of ways to actually perform a join using
either Table API or SQL.
+因而，Flink 提供了几种基于 Table API 和 SQL 的 Join 方法。
-For more information regarding the syntax, please check the join sections in
[Table API](../tableApi.html#joins) and [SQL]({{ site.baseurl
}}/dev/table/sql/queries.html#joins).
+欲获取更多关于 Join 语法的细节，请参考 [Table API](../tableApi.html#joins) 和 [SQL]({{
site.baseurl }}/dev/table/sql/queries.html#joins) 中的 Join 章节。
* This will be replaced by the TOC
{:toc}
-Regular Joins
+常规 Join
-------------
-Regular joins are the most generic type of join in which any new records or
changes to either side of the join input are visible and are affecting the
whole join result.
-For example, if there is a new record on the left side, it will be joined with
all of the previous and future records on the right side.
+常规 Join 是最常用的 Join 用法。在常规 Join 中，任何新记录或对 Join 两侧的表的任何更改都是可见的，并会影响最终整个 Join
的结果。例如，如果 Join 左侧插入了一条新的记录，那么它将会与 Join 右侧过去与将来的所有记录一起合并查询。
Review comment:
改成了“所有记录进行 Join 运算”，不知是否妥当。
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