Implementing the upsert operation using Amazon Redshift V2 Connector

Implementing the upsert operation using Amazon Redshift V2 Connector

Use case

Use case

You want to perform an upsert operation when there are multiple data rows for a key field or entity.
Consider a dataset that has the following entities:
customer
and
credithistory
The
customer
dataset is a flat file with the following fields: customer ID and customer name. The customer ID uniquely identifies a customer.
The following image shows a list of customer IDs and customers:
The image shows the IDs for the customers.
The
credithistory
dataset denotes the credit score for a customer at intervals of three months.
The following image shows the credit history for the customers:
The image shows the customer id, the month, the year, and the credit score for customers.