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Adding "const" qualifiers to casefold_info_st::page
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The array my_unicase_pages_unicode520[7] erroneously mapped to plane06
instead of plane07.
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Currently cross compilation on x86_64 to arch i686 fails
with error:
> ctype-uca1400data.h
/bin/sh: 1: uca-dump: not found
Commit makes sure that uca-dump is treated correctly
when cross compiling MariaDB to another architecture
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This is a non-functional change and should not change the server behavior.
Casefolding information is now stored in items of a new data type MY_CASEFOLD_CHARACTER:
typedef struct casefold_info_char_t
{
uint32 toupper;
uint32 tolower;
} MY_CASEFOLD_CHARACTER;
Before this change, casefolding tables for Asian collations were stored in:
typedef struct unicase_info_char_st
{
uint32 toupper;
uint32 tolower;
uint32 sort;
} MY_UNICASE_CHARACTER;
The "sort" member was not used in the code handling Asian collations,
it only wasted space.
(it's only used by Unicode _general_ci and _general_mysql500_ci collations).
Unicode collations (at least UCA and _bin) should also be refactored later,
but under terms of a separate task.
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Fixing conf_to_src.c according to changes made by
a206658b985fe5e18fb5692fdb3698dad5aca70a
Re-generating ctype-extra.c at once, to fix the indentation
from manually edited to automatic.
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for utf8
String length growth during upper/lower conversion
in Unicode collations depends only on the underlying MY_UNICASE_INFO
used in the collation.
Maintaining a separate member CHARSET_INFO::caseup_multiply and
CHARSET_INFO::casedn_multiply duplicated this information
and caused bugs like this (when MY_UNICASE_INFO and case??_multiply
when out of sync because of incomplete CHARSET_INFO initialization).
Fix:
Changing CHARSET_INFO::caseup_multiply and CHARSET_INFO::casedn_multiply
from members to virtual functions.
The virtual functions in Unicode collations calculate case conversion
growth factors from the MY_UNICASE_INFO. This guarantees that the growth
factors are always in sync with the MY_UNICASE_INFO.
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collations for utf8
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'json_string_char_classes [128] *and* ASAN: global-buffer-overflow on address ... READ of size 4 on SELECT JSON_VALID
protect from out-of-bound array access
it was already done in all other places, this one was the only one missed
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procedures
MDEV-22224 caused the parsing of keys with hyphens to break by setting
the state transitions for parsing keys to JE_SYN (syntax error) when
they encounter a hyphen. However json key names may contain hyphens and
still be considered valid json.
This patch changes the state transition table so that key names with
hyphens remain valid. Note that unquoted key names in paths like
$.key-name are also valid again. This restores the previous behaviour
when hyphens were considered part of the P_ETC character class.
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type 'int' in strings/dtoa.c
Fixing a few problems relealed by UBSAN in type_float.test
- multiplication overflow in dtoa.c
- uninitialized Field::geom_type (and Field::srid as well)
- Wrong call-back function types used in combination with SHOW_FUNC.
Changes in the mysql_show_var_func data type definition were not
properly addressed all around the code by the following commits:
b4ff64568c88ab3ce559e7bd39853d9cbf86704a
18feb62feeb833494d003615861b9c78ec008a90
0ee879ff8ac1b80cd9a963015344f5698a81f309
Adding a helper SHOW_FUNC_ENTRY() function and replacing
all mysql_show_var_func declarations using SHOW_FUNC
to SHOW_FUNC_ENTRY, to catch mysql_show_var_func in the future
at compilation time.
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my_strnncollsp_nchars_generic_8bit
Also fixes:
MDEV-27768 MDEV-25440: Assertion `(cs->state & 0x20000) == 0' failed in my_strnncollsp_nchars_generic_8bit
The "strnncollsp_nchars" virtual function pointer for tis620_thai_nopad_ci
was incorrectly initialized to a generic function
my_strnncollsp_nchars_generic_8bit(), which crashed on assert.
Implementing a tis620 specific function version.
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and utf8mb4
Moving these members:
CHARSET_INFO *cs;
const MY_UCA_WEIGHT_LEVEL *level;
from my_uca_scanner to a new separate structure my_uca_scanner_param.
Rationale:
During a comparison of two strings these members were initialized two times
(one time for every string).
After the change these members initialized only one time inside
a shared instance of my_uca_scanner_param, and the instance is
shared between two scanners (its const address is passed as new a parameter
to the underlying scanner functions).
This change gives a slight performance improvement (~5%).
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