MySQL's utf8mb3 (formerly utf8) not supported?

[aspantel]

We've recently upgraded Mysql to 8.x and pgloader cant load MySQL data anymore.
It seems the MySQL's charset/collation rename from utf8 to utf8mb3 is the issue.

pgloader version "3.6.3~devel"
compiled with SBCL 2.1.11.debian

2024-06-30T07:14:21.871987Z ERROR mysql: 255 fell through ECASE expression.
Wanted one of (2 3 4 5 6 8 9 10 11 14 15 17 20 21 23 27 28 30 31 32 33
35 41 42 45 46 47 48 49 50 51 52 54 55 56 60 61 62 63 64
65 69 72 77 78 79 82 83 87 90 92 93 94 95 96 97 98 101
102 103 104 105 106 107 108 109 110 111 112 113 114 115
116 117 118 119 120 121 122 123 124 128 129 130 131 132
133 134 135 136 137 138 139 140 141 142 143 144 145 146
147 148 149 150 151 159 160 161 162 163 164 165 166 167
168 169 170 171 172 173 174 175 176 177 178 179 180 181
182 183 192 193 194 195 196 197 198 199 200 201 202 203
204 205 206 207 208 209 210 211 212 213 214 215 223 224
225 226 227 228 229 230 231 232 233 234 235 236 237 238
239 240 241 242 243 244 245 246 247 254).

[aspantel]

Trying

DECODING TABLE NAMES MATCHING 'oneTable' AS utf8

and that is producing:

KABOOM!
FATAL error: The value
#(#S(SB-IMPL::EXTERNAL-FORMAT
:NAMES (:ASCII :US-ASCII :ANSI_X3.4-1968 :ISO-646
:ISO-646-US :|646|)
:DEFAULT-REPLACEMENT-CHARACTER #?
:READ-N-CHARS-FUN #<FUNCTION SB-IMPL::FD-STREAM-READ-N-CHARACTERS/ASCII>
:READ-CHAR-FUN #<FUNCTION SB-IMPL::INPUT-CHAR/ASCII>
:WRITE-N-BYTES-FUN #<FUNCTION SB-IMPL::OUTPUT-BYTES/ASCII>
:WRITE-CHAR-NONE-BUFFERED-FUN #
:WRITE-CHAR-LINE-BUFFERED-FUN #
:WRITE-CHAR-FULL-BUFFERED-FUN #
:RESYNC-FUN #<FUNCTION SB-IMPL::RESYNC/ASCII>
:BYTES-FOR-CHAR-FUN #
:READ-C-STRING-FUN #<FUNCTION SB-IMPL::READ-FROM-C-STRING/ASCII>
:WRITE-C-STRING-FUN #<FUNCTION SB-IMPL::OUTPUT-TO-C-STRING/ASCII>
:OCTETS-TO-STRING-FUN #<FUNCTION (LAMBDA (&REST REST)
:IN
"SYS:SRC;CODE;EXTERNAL-FORMATS;ENC-BASIC.LISP") {53DF50AB}>
:STRING-TO-OCTETS-FUN #<FUNCTION (LAMBDA (&REST REST)
:IN
"SYS:SRC;CODE;EXTERNAL-FORMATS;ENC-BASIC.LISP") {53DF51AB}>)
...

                                                    is not of type
           HASH-TABLE

[aspantel]

@dimitri would it be easy for you to make pgloader aware of the 'utf8mb3' charset in MySql 8.x?
Thank you