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module ActiveRecord
module ConnectionAdapters
module MySQL
class Column < ConnectionAdapters::Column # :nodoc:
delegate :extra, to: :sql_type_metadata, allow_nil: true
def unsigned?
!/\A(?:enum|set)\b/.match?(sql_type) && /\bunsigned\b/.match?(sql_type)
end
def case_sensitive?
collation && !/_ci\z/.match?(collation)
end
def auto_increment?
extra == "auto_increment"
end
end
end
end
end
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