wuchong commented on a change in pull request #10738:
[FLINK-15385][table][docs] Translate SQL section of Table API into Chinese
URL: https://github.com/apache/flink/pull/10738#discussion_r362367142
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File path: docs/dev/table/sql/queries.zh.md
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@@ -863,33 +861,33 @@ FROM (
WHERE rownum <= N [AND conditions]
{% endhighlight %}
-**Parameter Specification:**
+**参数说明：**
-- `ROW_NUMBER()`: Assigns an unique, sequential number to each row, starting
with one, according to the ordering of rows within the partition. Currently, we
only support `ROW_NUMBER` as the over window function. In the future, we will
support `RANK()` and `DENSE_RANK()`.
-- `PARTITION BY col1[, col2...]`: Specifies the partition columns. Each
partition will have a Top-N result.
-- `ORDER BY col1 [asc|desc][, col2 [asc|desc]...]`: Specifies the ordering
columns. The ordering directions can be different on different columns.
-- `WHERE rownum <= N`: The `rownum <= N` is required for Flink to recognize
this query is a Top-N query. The N represents the N smallest or largest records
will be retained.
-- `[AND conditions]`: It is free to add other conditions in the where clause,
but the other conditions can only be combined with `rownum <= N` using `AND`
conjunction.
+- `ROW_NUMBER()`: 根据当前分区内的各行的顺序从第一行开始，依次为每一行分配一个唯一且连续的号码。目前，我们只支持 `ROW_NUMBER`
在 over 窗口函数中使用。未来将会支持 `RANK()` 和 `DENSE_RANK()`函数。
+- `PARTITION BY col1[, col2...]`: 指定分区列，每个分区都将会有一个 Top-N 结果。
+- `ORDER BY col1 [asc|desc][, col2 [asc|desc]...]`: 指定排序列，不同列的排序方式可以不一样。
Review comment:
```suggestion
- `ORDER BY col1 [asc|desc][, col2 [asc|desc]...]`: 指定排序列，不同列的排序方向可以不一样。
```
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