Rechercher dans le manuel MySQL
10.12.2 String Collating Support for Complex Character Sets
For a simple character set named
MYSET, sorting rules are specified in
the MYSET.xml<map> array
elements within <collation> elements.
If the sorting rules for your language are too complex to be
handled with simple arrays, you must define string collating
functions in the
ctype-
source file in the MYSET.cstrings directory.
The existing character sets provide the best documentation and
examples to show how these functions are implemented. Look at
the ctype-*.c files in the
strings directory, such as the files for
the big5, czech,
gbk, sjis, and
tis160 character sets. Take a look at the
MY_COLLATION_HANDLER structures to see how
they are used. See also the
CHARSET_INFO.txt file in the
strings directory for additional
information.
Document created the 26/06/2006, last modified the 26/10/2018
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