MySQL Node creating duplicate entries

I don’t know why the MySQL node creating multiple entries in the Database.

Here is my workflow.

Here are the Database Entries.
Screenshot from 2020-10-16 06-37-58

Here is MySQL Query.

Should I enable Execute Once on MySQL Node?
Edit: Enabling Execute Once is also doing the same thing.

Ended up setting the Purchase ID as my primary key solved my issue.

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