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authorunknown <jan@hundin.mysql.fi>2004-09-03 15:26:29 +0300
committerunknown <jan@hundin.mysql.fi>2004-09-03 15:26:29 +0300
commitbbd402dc4f45947ff282775eea7b921c66667058 (patch)
treebb1dba9818e4bb46971804c5f7b810602a9a6d25 /innobase/btr
parent3e3981b558befa08a3278f86e5fd0a12417abba1 (diff)
downloadmariadb-git-bbd402dc4f45947ff282775eea7b921c66667058.tar.gz
Fixed unique prefix key bug for multibyte character sets (BUG #4521) for
InnoDB. This fixes also a second part of the same problem with prefix keys on a multibyte string column for InnoDB. innobase/btr/btr0btr.c: Multibyte character set prefix indexes are not any more fixed size. Therefore, we have to chect that length of the index field in not greater than prefix length. innobase/rem/rem0cmp.c: Remove unnecessary changes. innobase/row/row0ins.c: Fixed unique prefix key or prefix key using multibyte character set bugs for InnoDB (BUG #4521). For prefix keys we have to get the storage length for the prefix length of characters in the key. innobase/row/row0row.c: Fixed unique prefix key or prefix key using multibyte character set bugs for InnoDB (BUG #4521). For prefix keys we have to get the storage length for the prefix length of characters in the key. innobase/row/row0sel.c: Fixed unique prefix key or prefix key using multibyte character set bugs for InnoDB (BUG #4521). For prefix keys we have to get the storage length for the prefix length of characters in the key. innobase/row/row0upd.c: Fixed unique prefix key or prefix key using multibyte character set bugs for InnoDB (BUG #4521). For prefix keys we have to get the storage length for the prefix length of characters in the key. mysql-test/r/ctype_utf8.result: Added utf8 character test cases for InnoDB. mysql-test/t/ctype_utf8.test: Added utf8 character expected test results for InnoDB. sql/ha_innodb.cc: Added function innobase_get_at_most_n_mbchars to return position of the nth character in the multibyte character string. sql/ha_innodb.h: Remove unnecessary changes.
Diffstat (limited to 'innobase/btr')
-rw-r--r--innobase/btr/btr0btr.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/innobase/btr/btr0btr.c b/innobase/btr/btr0btr.c
index 27d798f925a..e31aadbbfff 100644
--- a/innobase/btr/btr0btr.c
+++ b/innobase/btr/btr0btr.c
@@ -2400,14 +2400,17 @@ btr_index_rec_validate(
dtype_t* type = dict_index_get_nth_type(index, i);
rec_get_nth_field(rec, i, &len);
-
+
+ /* Note that prefix indexes are not fixed size even when
+ their type is CHAR. */
+
if ((dict_index_get_nth_field(index, i)->prefix_len == 0
&& len != UNIV_SQL_NULL && dtype_is_fixed_size(type)
&& len != dtype_get_fixed_size(type))
||
(dict_index_get_nth_field(index, i)->prefix_len > 0
- && len != UNIV_SQL_NULL && dtype_is_fixed_size(type)
- && len !=
+ && len != UNIV_SQL_NULL
+ && len >
dict_index_get_nth_field(index, i)->prefix_len)) {
btr_index_rec_validate_report(page, rec, index);