check_constraint_for

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 1525
        def check_constraint_for(table_name, **options)
          return unless supports_check_constraints?
          chk_name = check_constraint_name(table_name, **options)
          check_constraints(table_name).detect { |chk| chk.name == chk_name }
        end