Please tell me where I can read information about the following question. I have a users endpoint, I need meltano not to write duplicates to the target, but only update their records. That is, when I first launched Meltano, I need to write down the entire array of data, and all the following times only update the received data if they have changed and add records that were not there. Now I'm already using primary_key, but it doesn't seem to solve the problem

Which target? Generally targets would handle deduping/merging, but not all do.

Noticed duplicates when using jsonl.