You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@iotdb.apache.org by ro...@apache.org on 2021/08/17 08:52:53 UTC
[iotdb] 01/01: Fix incorrect descriptions in
DDL-Data-Definition-Language(Chinses) and a typo in
DML-Data-Manipulation-Language(Chinses)
This is an automated email from the ASF dual-hosted git repository.
rong pushed a commit to branch fix-chinese-doc
in repository https://gitbox.apache.org/repos/asf/iotdb.git
commit 54af94e4fd3f2e728dcf6b3dff1d536cb0966348
Author: Steve Yurong Su <ro...@apache.org>
AuthorDate: Tue Aug 17 16:51:26 2021 +0800
Fix incorrect descriptions in DDL-Data-Definition-Language(Chinses) and a typo in DML-Data-Manipulation-Language(Chinses)
---
.../DDL-Data-Definition-Language.md | 45 ++++++++++++----------
.../DML-Data-Manipulation-Language.md | 2 +-
2 files changed, 25 insertions(+), 22 deletions(-)
diff --git a/docs/zh/UserGuide/IoTDB-SQL-Language/DDL-Data-Definition-Language.md b/docs/zh/UserGuide/IoTDB-SQL-Language/DDL-Data-Definition-Language.md
index 42ada73..8e0be49 100644
--- a/docs/zh/UserGuide/IoTDB-SQL-Language/DDL-Data-Definition-Language.md
+++ b/docs/zh/UserGuide/IoTDB-SQL-Language/DDL-Data-Definition-Language.md
@@ -265,31 +265,34 @@ IoTDB > COUNT TIMESERIES root.ln.wf01 GROUP BY LEVEL=2
```
IoTDB> COUNT TIMESERIES root GROUP BY LEVEL=1
-+---------+-----+
-| column|count|
-+---------+-----+
-| root.ln| 4|
-|root.sgcc| 2|
-+---------+-----+
-Total line number = 2
-It costs 0.103s
++------------+-----+
+| column|count|
++------------+-----+
+| root.sgcc| 2|
+|root.turbine| 1|
+| root.ln| 4|
++------------+-----+
+Total line number = 3
+It costs 0.002s
+
IoTDB > COUNT TIMESERIES root.ln GROUP BY LEVEL=2
-+--------------+-----+
-| column|count|
-+--------------+-----+
-| root.ln.wf02| 1|
-| root.ln.wf01| 3|
-+--------------+-----+
++------------+-----+
+| column|count|
++------------+-----+
+|root.ln.wf02| 2|
+|root.ln.wf01| 2|
++------------+-----+
Total line number = 2
-It costs 0.003s
+It costs 0.002s
+
IoTDB > COUNT TIMESERIES root.ln.wf01 GROUP BY LEVEL=2
-+--------------+-----+
-| column|count|
-+--------------+-----+
-| root.ln.wf01| 4|
-+--------------+-----+
++------------+-----+
+| column|count|
++------------+-----+
+|root.ln.wf01| 2|
++------------+-----+
Total line number = 1
-It costs 0.001s
+It costs 0.002s
```
> 注意：时间序列的路径只是过滤条件，与 level 的定义无关。
diff --git a/docs/zh/UserGuide/IoTDB-SQL-Language/DML-Data-Manipulation-Language.md b/docs/zh/UserGuide/IoTDB-SQL-Language/DML-Data-Manipulation-Language.md
index 6a7b5d1..fe97521 100644
--- a/docs/zh/UserGuide/IoTDB-SQL-Language/DML-Data-Manipulation-Language.md
+++ b/docs/zh/UserGuide/IoTDB-SQL-Language/DML-Data-Manipulation-Language.md
@@ -783,7 +783,7 @@ select <path> from <prefixPath> where time = <T> fill(<data_type>[linear, <befor
</center>
-需要注意的是一旦时间序列在查询时间戳 T 时刻存在有效值，线性填充就回使用这个值作为结果返回。
+需要注意的是一旦时间序列在查询时间戳 T 时刻存在有效值，线性填充就会使用这个值作为结果返回。
除此之外，如果在 [T-before_range，T] 或 [T, T + after_range] 两个范围中任意一个范围内不存在有效填充值，则线性填充返回 null 值。
在这里，我们举一个使用线性方法填充空值的示例。 SQL 语句如下：