public static ResultProducer<ResultBearing> returningDml() {
        return (supplier, ctx) -> ResultProducers.createResultBearing(supplier, statement -> unwrapOracleStatement(statement).getReturnResultSet(), ctx);
    }
Result producer that returns a {@link ResultBearing} over the statement "DML returning" parameters. Used in
conjunction with {@link #returnParameters()} to register return parameters.

@return ResultBearing of returned columns.
@see OraclePreparedStatement#getReturnResultSet()
oracle12/src/main/java/org/jdbi/v3/oracle12/OracleReturning.java