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Fixed unique prefix key bug for multibyte character sets (BUG #4521) for

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InnoDB. This fixes also a second part of the same problem with prefix keys
on a multibyte string column for InnoDB.
This commit is contained in:
jan@hundin.mysql.fi 2004-09-03 15:26:29 +03:00
commit a48db602dd
10 changed files with 271 additions and 55 deletions
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17
innobase/row/row0ins.c
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@ -1999,6 +1999,7 @@ row_ins_index_entry_set_vals(
dfield_t* row_field;
ulint n_fields;
ulint i;
dtype_t* cur_type;
ut_ad(entry && row);
@ -2012,10 +2013,18 @@ row_ins_index_entry_set_vals(
/* Check column prefix indexes */
if (ind_field->prefix_len > 0
&& dfield_get_len(row_field) != UNIV_SQL_NULL
&& dfield_get_len(row_field) > ind_field->prefix_len) {
field->len = ind_field->prefix_len;
&& dfield_get_len(row_field) != UNIV_SQL_NULL) {
/* For prefix keys get the storage length
for the prefix_len characters. */
cur_type = dict_col_get_type(
dict_field_get_col(ind_field));
field->len = innobase_get_at_most_n_mbchars(
dtype_get_charset_coll(cur_type->prtype),
ind_field->prefix_len,
dfield_get_len(field),row_field->data);
} else {
field->len = row_field->len;
}