docs: public static int[] executeBatch(Connection conn, String sql, Iterable<Object[]> paramsBatch) throws SQLException {
  		PreparedStatement ps = null;
  		try {
  			ps = StatementUtil.prepareStatementForBatch(conn, sql, paramsBatch);
  			return ps.executeBatch();
  		} finally {
  			DbUtil.close(ps);
  		}
  	}