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fd247cc21f
This patch also fixes:
MDEV-33050 Build-in schemas like oracle_schema are accent insensitive
MDEV-33084 LASTVAL(t1) and LASTVAL(T1) do not work well with lower-case-table-names=0
MDEV-33085 Tables T1 and t1 do not work well with ENGINE=CSV and lower-case-table-names=0
MDEV-33086 SHOW OPEN TABLES IN DB1 -- is case insensitive with lower-case-table-names=0
MDEV-33088 Cannot create triggers in the database `MYSQL`
MDEV-33103 LOCK TABLE t1 AS t2 -- alias is not case sensitive with lower-case-table-names=0
MDEV-33109 DROP DATABASE MYSQL -- does not drop SP with lower-case-table-names=0
MDEV-33110 HANDLER commands are case insensitive with lower-case-table-names=0
MDEV-33119 User is case insensitive in INFORMATION_SCHEMA.VIEWS
MDEV-33120 System log table names are case insensitive with lower-cast-table-names=0
- Removing the virtual function strnncoll() from MY_COLLATION_HANDLER
- Adding a wrapper function CHARSET_INFO::streq(), to compare
two strings for equality. For now it calls strnncoll() internally.
In the future it will turn into a virtual function.
- Adding new accent sensitive case insensitive collations:
- utf8mb4_general1400_as_ci
- utf8mb3_general1400_as_ci
They implement accent sensitive case insensitive comparison.
The weight of a character is equal to the code point of its
upper case variant. These collations use Unicode-14.0.0 casefolding data.
The result of
my_charset_utf8mb3_general1400_as_ci.strcoll()
is very close to the former
my_charset_utf8mb3_general_ci.strcasecmp()
There is only a difference in a couple dozen rare characters, because:
- the switch from "tolower" to "toupper" comparison, to make
utf8mb3_general1400_as_ci closer to utf8mb3_general_ci
- the switch from Unicode-3.0.0 to Unicode-14.0.0
This difference should be tolarable. See the list of affected
characters in the MDEV description.
Note, utf8mb4_general1400_as_ci correctly handles non-BMP characters!
Unlike utf8mb4_general_ci, it does not treat all BMP characters
as equal.
- Adding classes representing names of the file based database objects:
Lex_ident_db
Lex_ident_table
Lex_ident_trigger
Their comparison collation depends on the underlying
file system case sensitivity and on --lower-case-table-names
and can be either my_charset_bin or my_charset_utf8mb3_general1400_as_ci.
- Adding classes representing names of other database objects,
whose names have case insensitive comparison style,
using my_charset_utf8mb3_general1400_as_ci:
Lex_ident_column
Lex_ident_sys_var
Lex_ident_user_var
Lex_ident_sp_var
Lex_ident_ps
Lex_ident_i_s_table
Lex_ident_window
Lex_ident_func
Lex_ident_partition
Lex_ident_with_element
Lex_ident_rpl_filter
Lex_ident_master_info
Lex_ident_host
Lex_ident_locale
Lex_ident_plugin
Lex_ident_engine
Lex_ident_server
Lex_ident_savepoint
Lex_ident_charset
engine_option_value::Name
- All the mentioned Lex_ident_xxx classes implement a method streq():
if (ident1.streq(ident2))
do_equal();
This method works as a wrapper for CHARSET_INFO::streq().
- Changing a lot of "LEX_CSTRING name" to "Lex_ident_xxx name"
in class members and in function/method parameters.
- Replacing all calls like
system_charset_info->coll->strcasecmp(ident1, ident2)
to
ident1.streq(ident2)
- Taking advantage of the c++11 user defined literal operator
for LEX_CSTRING (see m_strings.h) and Lex_ident_xxx (see lex_ident.h)
data types. Use example:
const Lex_ident_column primary_key_name= "PRIMARY"_Lex_ident_column;
is now a shorter version of:
const Lex_ident_column primary_key_name=
Lex_ident_column({STRING_WITH_LEN("PRIMARY")});
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
/* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#ifndef SQL_LOCALE_INCLUDED
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#define SQL_LOCALE_INCLUDED
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typedef struct my_locale_errmsgs
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{
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const char *language;
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const char ***errmsgs;
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} MY_LOCALE_ERRMSGS;
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typedef struct st_typelib TYPELIB;
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class MY_LOCALE
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{
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public:
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uint number;
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const Lex_ident_locale name;
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const char *description;
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const bool is_ascii;
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TYPELIB *month_names;
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TYPELIB *ab_month_names;
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TYPELIB *day_names;
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TYPELIB *ab_day_names;
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uint max_month_name_length;
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uint max_day_name_length;
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uint decimal_point;
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uint thousand_sep;
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const char *grouping;
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MY_LOCALE_ERRMSGS *errmsgs;
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MY_LOCALE(uint number_par,
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const Lex_ident_locale &name_par,
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const char *descr_par, bool is_ascii_par,
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TYPELIB *month_names_par, TYPELIB *ab_month_names_par,
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TYPELIB *day_names_par, TYPELIB *ab_day_names_par,
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uint max_month_name_length_par, uint max_day_name_length_par,
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uint decimal_point_par, uint thousand_sep_par,
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const char *grouping_par, MY_LOCALE_ERRMSGS *errmsgs_par) :
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number(number_par),
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name(name_par), description(descr_par), is_ascii(is_ascii_par),
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month_names(month_names_par), ab_month_names(ab_month_names_par),
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day_names(day_names_par), ab_day_names(ab_day_names_par),
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max_month_name_length(max_month_name_length_par),
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max_day_name_length(max_day_name_length_par),
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decimal_point(decimal_point_par),
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thousand_sep(thousand_sep_par),
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grouping(grouping_par),
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errmsgs(errmsgs_par)
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{}
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my_repertoire_t repertoire() const
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{ return is_ascii ? MY_REPERTOIRE_ASCII : MY_REPERTOIRE_EXTENDED; }
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};
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/* Exported variables */
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extern MY_LOCALE my_locale_en_US;
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extern MYSQL_PLUGIN_IMPORT MY_LOCALE *my_locales[];
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extern MY_LOCALE *my_default_lc_messages;
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extern MY_LOCALE *my_default_lc_time_names;
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/* Exported functions */
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MY_LOCALE *my_locale_by_name(const LEX_CSTRING &name);
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MY_LOCALE *my_locale_by_number(uint number);
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void cleanup_errmsgs(void);
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#endif /* SQL_LOCALE_INCLUDED */
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