diff options
| author | unknown <evgen@moonbone.local> | 2006-06-22 00:29:04 +0400 |
|---|---|---|
| committer | unknown <evgen@moonbone.local> | 2006-06-22 00:29:04 +0400 |
| commit | 822e8866c7009d8d7bd25300f1cc4c09c110c640 (patch) | |
| tree | f4a8dc3dfd444b56bbc2b026f7e319e27f959229 /mysys/make-conf.c | |
| parent | fa83f8baa094ed45330afa0e2516eeb31e803b27 (diff) | |
| download | mariadb-git-822e8866c7009d8d7bd25300f1cc4c09c110c640.tar.gz | |
Fixed bug #14896.
This bug in Field_string::cmp resulted in a wrong comparison
with keys in partial indexes over multi-byte character fields.
Given field a is declared as a varchar(16) collate utf8_unicode_ci
INDEX(a(4)) gives us an example of such an index.
Wrong key comparisons could lead to wrong result sets if
the selected query execution plan used a range scan by
a partial index over a utf8 character field.
This also caused wrong results in many other cases.
mysql-test/t/ctype_utf8.test:
Added test cases for bug #14896.
mysql-test/r/ctype_utf8.result:
Added test cases for bug #14896.
sql/field.cc:
Fixed bug #14896.
This bug in Field_string::cmp resulted in a wrong comparison
with keys in partial indexes over multi-byte character fields.
Given field a is declared as a varchar(16) collate utf8_unicode_ci
INDEX(a(4)) gives us an example of such an index.
Wrong key comparisons could lead to wrong result sets if
the selected query execution plan used a range scan by
a partial index over a utf8 character field.
This also caused wrong results in many other cases.
Diffstat (limited to 'mysys/make-conf.c')
0 files changed, 0 insertions, 0 deletions