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# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
# PostgreSQL-specific extensions to column definitions in a table.
class PostgreSQLColumn < Column #:nodoc:
delegate :array, :oid, :fmod, to: :sql_type_metadata
alias :array? :array
def serial?
return unless default_function
%r{\Anextval\('"?#{table_name}_#{name}_seq"?'::regclass\)\z} === default_function
end
end
end
end
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