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[FLINK-15567][table][docs] Add documentation for INSERT statements for Flink SQL #10839

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merged 3 commits into from Jan 14, 2020
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[FLINK-15567][table][docs] Add documentation for INSERT statements for Flink SQL #10839

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[FLINK-15567][table][docs] Add documentation for INSERT statements fo…
wuchong Jan 13, 2020
0be9e1e
address Jingsong's comment
wuchong Jan 14, 2020
39d7478
fix
wuchong Jan 14, 2020
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14 changes: 11 additions & 3 deletions docs/dev/table/sql/insert.md
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Expand Up @@ -125,20 +125,28 @@ part_spec:
### Examples

{% highlight sql %}

-- Creates a partitioned table
CREATE TABLE country_page_view (user STRING, cnt INT, date STRING, country STRING)
PARTITIONED BY (date, country)
WITH (...)

-- Appends rows into the partition (date='2019-8-30', country='China')
-- Appends rows into the static partition (date='2019-8-30', country='China')
INSERT INTO country_page_view PARTITION (date='2019-8-30', country='China')
SELECT user, cnt FROM page_view_source;

-- Overwrites the partition (date='2019-8-30', country='China') using rows in page_view_source
-- Appends rows into partition (date, country), where date is static partition with value '2019-8-30',
-- country is dynamic partition whose value is dynamic determined by each row.
INSERT INTO country_page_view PARTITION (date='2019-8-30', country='China')
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Can you add append/overwrite dynamic partition inserting?

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Sure.

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Remove , country='China'

SELECT user, cnt, country FROM page_view_source;

-- Overwrites rows into static partition (date='2019-8-30', country='China')
INSERT OVERWRITE country_page_view PARTITION (date='2019-8-30', country='China')
SELECT user, cnt FROM page_view_source;

-- Overwrites rows into partition (date, country), where date is static partition with value '2019-8-30',
-- country is dynamic partition whose value is dynamic determined by each row.
INSERT OVERWRITE country_page_view PARTITION (date='2019-8-30')
SELECT user, cnt, country FROM page_view_source;
{% endhighlight %}


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13 changes: 9 additions & 4 deletions docs/dev/table/sql/insert.zh.md
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Expand Up @@ -125,23 +125,28 @@ part_spec:
### 示例

{% highlight sql %}

-- 创建一个分区表
CREATE TABLE country_page_view (user STRING, cnt INT, date STRING, country STRING)
PARTITIONED BY (date, country)
WITH (...)

-- 追加行到该分区中 (date='2019-8-30', country='China')
-- 追加行到该静态分区中 (date='2019-8-30', country='China')
INSERT INTO country_page_view PARTITION (date='2019-8-30', country='China')
SELECT user, cnt FROM page_view_source;

-- 用 page_view_source 中的行，覆盖分区 (date='2019-8-30', country='China')
-- 追加行到分区 (date, country) 中，其中 date 是静态分区 '2019-8-30'；country 是动态分区，其值由每一行动态决定
INSERT INTO country_page_view PARTITION (date='2019-8-30', country='China')
SELECT user, cnt, country FROM page_view_source;

-- 覆盖行到静态分区 (date='2019-8-30', country='China')
INSERT OVERWRITE country_page_view PARTITION (date='2019-8-30', country='China')
SELECT user, cnt FROM page_view_source;

-- 覆盖行到分区 (date, country) 中，其中 date 是静态分区 '2019-8-30'；country 是动态分区，其值由每一行动态决定
INSERT OVERWRITE country_page_view PARTITION (date='2019-8-30')
SELECT user, cnt, country FROM page_view_source;
{% endhighlight %}


## 将值插入表中

通过 INSERT 语句，也可以直接将值插入到表中，
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