Can please someone help / reply on below Question ?

From: Ronak Beejawat (rbeejawa)
Sent: Monday, January 10, 2022 7:40 PM
To: dev@flink.apache.org; commun...@flink.apache.org; u...@flink.apache.org
Cc: Hang Ruan <ruanhang1...@gmail.com>; Shrinath Shenoy K (sshenoyk) 
<sshen...@cisco.com>
Subject: what is efficient way to write Left join in flink

Hi Team,

We want a clarification on one real time processing scenario for below 
mentioned use case.

Use case :
1. We have topic one (testtopic1) which will get half a million data every 
minute.
2. We have topic two (testtopic2) which will get one million data every minute.

So we are doing join as testtopic1  left join  testtopic2 which has a 
correlated data 1:2

So the question is which API will be more efficient and faster for such use 
case (datastream API or sql API) for intensive joining logic?

Thanks
Ronak Beejawat

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