Superfast CSV Imports Using PostgreSQL's COPY Command
Dealing with various sources of data in web applications requires us to create services that will extract information from CSV, Excel, and other file types. In that case, it’s best to use some existing libraries, or if your backend is on Rails, use gems. There are many gems with very cool features like CSVImporter and Roo. But you can also use plain Ruby CSV. Either way, if those are small CSV fil
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CSV Export with Postgres, Ecto and Phoenix
