配置单元不支持合并功能
hive doesn't support merge function
尝试将值从 table 更新为另一个 table,这两个 table 具有相同的字段名称但不同的值,查询必须在任何正常的数据库,但在这里 returns
Error while compiling statement: FAILED: ParseException line 1:0
cannot recognize input near 'MERGE' 'INTO' 'FINAL'
MERGE
INTO FINAL
USING FIRST_STAGE
ON IMSI = FIRST_STAGE.IMSI and Site = FIRST_STAGE.Site
WHEN MATCHED THEN UPDATE SET
Min_Date = least(FIRST_STAGE.Min_Date, Min_Date),
Max_Date = greatest(FIRST_STAGE.Max_Date, Max_Date),
NoofDays = FIRST_STAGE.NoofDays + NoofDays,
Down_Link = FIRST_STAGE.Down_Link + Down_Link,
up_Link = FIRST_STAGE.up_Link + up_Link,
connection = FIRST_STAGE.connection + connection
WHEN NOT MATCHED THEN INSERT ( Min_Date,
Max_Date,
NoofDays,
IMSI,
Site,
Down_Link,
Up_Link,
Connection )
VALUES ( FIRST_STAGE.Min_Date,
FIRST_STAGE.Max_Date,
FIRST_STAGE.NoofDays,
FIRST_STAGE.IMSI,
FIRST_STAGE.Site,
FIRST_STAGE.Down_Link,
FIRST_STAGE.Up_Link,
FIRST_STAGE.Connection )
Hive 合并语句在Hortonworks distribution
.
中引入
这些 merge statement
到 运行 的先决条件是:
最终 table 需要使用 transactional enabled ,ORC format ,and bucketed
.
创建
AFAIK 在 Cloudera distribution
的情况下,我们需要使用 Kudu
从 cloudera-5.10+
.
开始执行更新插入操作
注:Upsert statement only works for Impala tables that use the Kudu storage engine.
- 我不认为我们可以 运行 像
CDH
发行版中的 post 中提到的那样合并语句。
尝试将值从 table 更新为另一个 table,这两个 table 具有相同的字段名称但不同的值,查询必须在任何正常的数据库,但在这里 returns
Error while compiling statement: FAILED: ParseException line 1:0 cannot recognize input near 'MERGE' 'INTO' 'FINAL'
MERGE
INTO FINAL
USING FIRST_STAGE
ON IMSI = FIRST_STAGE.IMSI and Site = FIRST_STAGE.Site
WHEN MATCHED THEN UPDATE SET
Min_Date = least(FIRST_STAGE.Min_Date, Min_Date),
Max_Date = greatest(FIRST_STAGE.Max_Date, Max_Date),
NoofDays = FIRST_STAGE.NoofDays + NoofDays,
Down_Link = FIRST_STAGE.Down_Link + Down_Link,
up_Link = FIRST_STAGE.up_Link + up_Link,
connection = FIRST_STAGE.connection + connection
WHEN NOT MATCHED THEN INSERT ( Min_Date,
Max_Date,
NoofDays,
IMSI,
Site,
Down_Link,
Up_Link,
Connection )
VALUES ( FIRST_STAGE.Min_Date,
FIRST_STAGE.Max_Date,
FIRST_STAGE.NoofDays,
FIRST_STAGE.IMSI,
FIRST_STAGE.Site,
FIRST_STAGE.Down_Link,
FIRST_STAGE.Up_Link,
FIRST_STAGE.Connection )
Hive 合并语句在Hortonworks distribution
.
这些
merge statement
到 运行 的先决条件是:最终 table 需要使用
transactional enabled ,ORC format ,and bucketed
. 创建
AFAIK 在 Cloudera distribution
的情况下,我们需要使用 Kudu
从 cloudera-5.10+
.
注:Upsert statement only works for Impala tables that use the Kudu storage engine.
- 我不认为我们可以 运行 像
CDH
发行版中的 post 中提到的那样合并语句。