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MDEV-31531 Remove my_casedn_str() and my_caseup_str()

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Under terms of MDEV 27490 we'll add support for non-BMP identifiers
and upgrade casefolding information to Unicode version 14.0.0.
In Unicode-14.0.0 conversion to lower and upper cases can increase octet length
of the string, so conversion won't be possible in-place any more.

This patch removes virtual functions performing in-place casefolding:
  - my_charset_handler_st::casedn_str()
  - my_charset_handler_st::caseup_str()
and fixes the code to use the non-inplace functions instead:
  - my_charset_handler_st::casedn()
  - my_charset_handler_st::caseup()
This commit is contained in:
Alexander Barkov
2023-06-23 13:24:02 +04:00
parent de9c357284
commit 929c2e06aa
103 changed files with 1282 additions and 1248 deletions
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6
sql/sql_parse.cc
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@ -126,7 +126,7 @@ static int show_create_db(THD *thd, LEX *lex);
static bool alter_routine(THD *thd, LEX *lex);
static bool drop_routine(THD *thd, LEX *lex);
const Lex_ident_db any_db(STRING_WITH_LEN("*any*"));
const Lex_ident_db_normalized any_db(STRING_WITH_LEN("*any*"));
const LEX_CSTRING command_name[257]={
{ STRING_WITH_LEN("Sleep") }, //0
@ -2045,8 +2045,8 @@ dispatch_command_return dispatch_command(enum enum_server_command command, THD *
/* Must be before we init the table list. */
if (lower_case_table_names)
{
table_name.length= my_casedn_str(files_charset_info, table_name.str);
db.length= my_casedn_str(files_charset_info, (char*) db.str);
table_name= thd->make_ident_casedn(table_name);
db= thd->make_ident_casedn(db);
}
table_list.init_one_table(&db, (LEX_CSTRING*) &table_name, 0, TL_READ);
/*