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| author | Alexander Barkov <bar@mariadb.com> | 2023-02-17 16:20:01 +0400 |
|---|---|---|
| committer | Alexander Barkov <bar@mariadb.com> | 2023-02-17 17:33:27 +0400 |
| commit | 7f6b648d7db895c09a6ace3b5ee62a5fb482a8e0 (patch) | |
| tree | 66e727d8e65166497e68447ba659650d0cd53768 /mysql-test/include | |
| parent | 345356b868d840554a8572876efc027d3ccd9842 (diff) | |
| download | mariadb-git-7f6b648d7db895c09a6ace3b5ee62a5fb482a8e0.tar.gz | |
MDEV-30661 UPPER() returns an empty string for U+0251 in uca1400 collations 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.
Diffstat (limited to 'mysql-test/include')
| -rw-r--r-- | mysql-test/include/ctype_casefolding.inc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/include/ctype_casefolding.inc b/mysql-test/include/ctype_casefolding.inc index 4ee402c95ad..74b2ab7650a 100644 --- a/mysql-test/include/ctype_casefolding.inc +++ b/mysql-test/include/ctype_casefolding.inc @@ -13,6 +13,14 @@ INSERT INTO case_folding (code) VALUES (0x26B), (0x271), (0x27D); + +INSERT INTO case_folding (code) VALUES +(0x0049) /* LATIN CAPITAL LETTER I */, +(0x0069) /* LATIN SMALL LETTER I */, +(0x0130) /* LATIN CAPITAL LETTER I WITH DOT ABOVE */, +(0x0131) /* LATIN SMALL LETTER DOTLESS I */ +; + UPDATE case_folding SET c=CHAR(code USING ucs2); SELECT HEX(code), HEX(LOWER(c)), HEX(UPPER(c)), c FROM case_folding; DROP TABLE case_folding; |