Updating data which are newly added

[Varun_Patel]

Thanks @magnusbaeck.

Got more cleared information form the below post

Logstash adding duplicate rows for every run

Hello World, We implemented a solution to push Microsoft SQL Data in form of simple rows from SQL Server to Logstash which will index the data to Elasticsearch. The data (SQL rows and columns) are getting successfully by using a simple jdbc plugin to logstash and logstash indexing the data to elasticsearch. But, everytime we try to pump the data (same data) what its doing is adding duplicate records with same data but "with different _id". SO everytime we pump the data from our client to logsta…