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rdbms_functions.rb 433B

    module RDBMSFunctions def rdbms_date_add(source, unit, amount) adapter_type = ActiveRecord::Base.connection.adapter_name.downcase.to_sym case adapter_type when :mysql, :mysql2 "DATE_ADD(`#{source}`, INTERVAL #{amount} #{unit})" when :postgresql "(#{source} + INTERVAL '#{amount} #{unit}')" else raise NotImplementedError, "Unknown adapter type '#{adapter_type}'" end end end