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change_column(table_name, column_name, type, options = {}) public

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# File activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb, line 438
      def change_column(table_name, column_name, type, options = {}) #:nodoc:
        alter_table(table_name) do |definition|
          include_default = options_include_default?(options)
          definition[column_name].instance_eval do
            self.type    = type
            self.limit   = options[:limit] if options.include?(:limit)
            self.default = options[:default] if include_default
            self.null    = options[:null] if options.include?(:null)
            self.precision = options[:precision] if options.include?(:precision)
            self.scale   = options[:scale] if options.include?(:scale)
          end
        end
      end
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