github.com/matrixorigin/matrixone@v1.2.0/test/distributed/cases/function/func_hex.result (about)

     1  SELECT hex(NULL);
     2  hex(null)
     3  null
     4  SELECT hex(0);
     5  hex(0)
     6  0
     7  SELECT hex(9223372036854775807);
     8  hex(9223372036854775807)
     9  7FFFFFFFFFFFFFFF
    10  SELECT hex(-255);
    11  hex(-255)
    12  FFFFFFFFFFFFFF01
    13  SELECT hex("你好。");
    14  hex(你好。)
    15  e4bda0e5a5bde38082
    16  SELECT hex("おはようございます");
    17  hex(おはようございます)
    18  e3818ae381afe38288e38186e38194e38196e38184e381bee38199
    19  SELECT hex("-255");
    20  hex(-255)
    21  2d323535
    22  SELECT hex(0x62);
    23  hex(0x62)
    24  62
    25  SELECT hex(b'1101100');
    26  hex(0b1101100)
    27  6c