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equivalent/csv_generate.rb

Created January 5, 2023 13:09
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how to generare CSV for milion records in sidekiq
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csv_generate.rb
Model.pluck(:id, :name, ...).find_in_batches(10_000) do |ary|
CSV.open("tmp.csv", "ab") do |csv|
csv << ary.map{|a| a.join ','}.join("\n")
end
end
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https://stackoverflow.com/questions/56362259/generating-csv-excel-file-for-100-million-of-records-in-ruby-on-rails

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