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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")});
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| .. | ||
| crc32 | ||
| array.c | ||
| base64.c | ||
| ChangeLog | ||
| charset-def.c | ||
| charset.c | ||
| CMakeLists.txt | ||
| crc32ieee.cc | ||
| errors.c | ||
| file_logger.c | ||
| get_password.c | ||
| guess_malloc_library.c | ||
| hash.c | ||
| lf_alloc-pin.c | ||
| lf_dynarray.c | ||
| lf_hash.cc | ||
| list.c | ||
| ma_dyncol.c | ||
| mf_arr_appstr.c | ||
| mf_cache.c | ||
| mf_dirname.c | ||
| mf_fn_ext.c | ||
| mf_format.c | ||
| mf_getdate.c | ||
| mf_iocache.c | ||
| mf_iocache2.c | ||
| mf_keycache.c | ||
| mf_keycaches.c | ||
| mf_loadpath.c | ||
| mf_pack.c | ||
| mf_path.c | ||
| mf_qsort.c | ||
| mf_qsort2.c | ||
| mf_radix.c | ||
| mf_same.c | ||
| mf_sort.c | ||
| mf_soundex.c | ||
| mf_tempdir.c | ||
| mf_tempfile.c | ||
| mf_unixpath.c | ||
| mf_wcomp.c | ||
| mulalloc.c | ||
| my_access.c | ||
| my_addr_resolve.c | ||
| my_alloc.c | ||
| my_atomic_writes.c | ||
| my_basename.c | ||
| my_bit.c | ||
| my_bitmap.c | ||
| my_chmod.c | ||
| my_chsize.c | ||
| my_compare.c | ||
| my_compress.c | ||
| my_copy.c | ||
| my_cpu.c | ||
| my_create.c | ||
| my_default.c | ||
| my_delete.c | ||
| my_div.c | ||
| my_dlerror.c | ||
| my_error.c | ||
| my_file.c | ||
| my_fopen.c | ||
| my_fstream.c | ||
| my_gethwaddr.c | ||
| my_getncpus.c | ||
| my_getopt.c | ||
| my_getpagesize.c | ||
| my_getsystime.c | ||
| my_getwd.c | ||
| my_init.c | ||
| my_largepage.c | ||
| my_lib.c | ||
| my_libwrap.c | ||
| my_likely.c | ||
| my_lock.c | ||
| my_lockmem.c | ||
| my_malloc.c | ||
| my_memmem.c | ||
| my_mess.c | ||
| my_minidump.cc | ||
| my_mkdir.c | ||
| my_mmap.c | ||
| my_new.cc | ||
| my_once.c | ||
| my_open.c | ||
| my_port.c | ||
| my_pread.c | ||
| my_pthread.c | ||
| my_quick.c | ||
| my_rdtsc.c | ||
| my_read.c | ||
| my_redel.c | ||
| my_rename.c | ||
| my_rnd.c | ||
| my_safehash.c | ||
| my_safehash.h | ||
| my_seek.c | ||
| my_setuser.c | ||
| my_sleep.c | ||
| my_static.c | ||
| my_static.h | ||
| my_symlink.c | ||
| my_symlink2.c | ||
| my_sync.c | ||
| my_thr_init.c | ||
| my_timezone.cc | ||
| my_uuid.c | ||
| my_win_popen.cc | ||
| my_wincond.c | ||
| my_winerr.c | ||
| my_winfile.c | ||
| my_winthread.c | ||
| my_wintoken.c | ||
| my_write.c | ||
| mysys_priv.h | ||
| psi_noop.c | ||
| ptr_cmp.c | ||
| queues.c | ||
| safemalloc.c | ||
| stacktrace.c | ||
| string.c | ||
| test_charset.c | ||
| test_dir.c | ||
| test_thr_mutex.c | ||
| test_xml.c | ||
| testhash.c | ||
| thr_lock.c | ||
| thr_mutex.c | ||
| thr_rwlock.c | ||
| thr_timer.c | ||
| tree.c | ||
| typelib.c | ||
| waiting_threads.c | ||
| wqueue.c | ||