FWLamb commented on issue #2987:
URL: 
https://github.com/apache/incubator-seatunnel/issues/2987#issuecomment-1270248916

   https://github.com/apache/incubator-seatunnel/pull/2988
   
   When I make a judgment and then decide which type to use, I find a problem,
   I use the Array (Double) type, but when I judge its type in 
ClickhouseSinkWriter, the result is a String type. When I insert data in the 
local test, the result is correct, which is Double [] . Why is its type not 
Double [] or array type, but String type? I tried to use other types such as 
Array (Integer), and the result is still String type, but this problem did not 
occur in the e2e test I wrote
   
   **In the following picture, the first two are the code in 
ClickhouseSinkWriter, and the last two are the code written for the clickhouse 
e2e test**
   
   
![image](https://user-images.githubusercontent.com/58908699/194349693-b18e7835-272e-434d-8af1-101d20f2c8e4.png)
   
![image](https://user-images.githubusercontent.com/58908699/194349891-a2fe87c0-c4a5-4df0-bafa-388bab3c2a58.png)
   
   
![image](https://user-images.githubusercontent.com/58908699/194350013-0d2a7a5f-a441-474a-8355-9e1b2217f641.png)
   
![image](https://user-images.githubusercontent.com/58908699/194350094-7c9bdd49-8ccb-4595-8387-ec2c39884b7d.png)


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