Samrat002 commented on PR #114: URL: https://github.com/apache/flink-connector-aws/pull/114#issuecomment-1916403746
> 1、The tuncate table paramter is supported in the batch import scenario. If data exists in a table, duplicate data will be generated and the table must be cleared first If the record exisits in table and redshift table created contains primary key or composite key . it carries out merge into operation . If you check the code we are doing merge into operation if ddl contains primary key . > 2、Can upsert write data in Batch data import scenarios。 https://docs.aws.amazon.com/redshift/latest/dg/t_updating-inserting-using-staging-tables-.html can you please elaborate more , as per what i understand you are concern how staged data get merged , in code we are using https://docs.aws.amazon.com/redshift/latest/dg/t_updating-inserting-using-staging-tables-.html#merge-method-specify-column-list . -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org