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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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2
sql/sql_parse.h
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@@ -129,7 +129,7 @@ bool check_stack_overrun(THD *thd, long margin, uchar *dummy);
/* Variables */
extern const Lex_ident_db any_db;
extern const Lex_ident_db_normalized any_db;
extern uint sql_command_flags[];
extern uint server_command_flags[];
extern const LEX_CSTRING command_name[];