new

# File activerecord/lib/active_record/connection_adapters/abstract_adapter.rb, line 98
      def initialize(connection, logger = nil, config = {}) # :nodoc:
        super()

        @connection          = connection
        @owner               = nil
        @instrumenter        = ActiveSupport::Notifications.instrumenter
        @logger              = logger
        @config              = config
        @pool                = nil
        @schema_cache        = SchemaCache.new self
        @quoted_column_names, @quoted_table_names = {}, {}
        @visitor             = arel_visitor

        if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
          @prepared_statements = true
          @visitor.extend(DetermineIfPreparableVisitor)
        else
          @prepared_statements = false
        end
      end