connected?() Instance Public methods Returns true if a connection has already

key?(oid) Instance Public methods

supports_extensions?() Instance Public methods Returns true if pg > 9.1

reconnect!() Instance Public methods Also aliased as:

quote_table_name(name) Instance Public methods Checks the following cases:

type_cast_for_write(value) Instance Public methods

begin_isolated_db_transaction(isolation) Instance Public methods

register_type(name, type) Class Public methods Register an

add_index_options(table_name, column_name, options = {}) Instance Protected methods

select_rows(sql, name = nil, binds = []) Instance Public methods Returns an