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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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5
sql/sql_partition_admin.cc
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@ -657,7 +657,10 @@ bool Sql_cmd_alter_table_exchange_partition::
my_snprintf(temp_name, sizeof(temp_name), "%s-exchange-%lx-%llx",
tmp_file_prefix, current_pid, thd->thread_id);
if (lower_case_table_names)
my_casedn_str(files_charset_info, temp_name);
{
// Ok to use latin1 as the file name is in the form '#sql-exchange-abc-def'
my_casedn_str_latin1(temp_name);
}
build_table_filename(temp_file_name, sizeof(temp_file_name),
table_list->next_local->db.str,
temp_name, "", FN_IS_TMP);