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ChangeSet@stripped, 2007-11-01 16:27:01+04:00, svoj@stripped +1 -0
BUG#31950 - repair table hangs while processing multicolumn utf8
fulltext index
Having a table with broken multibyte characters may cause fulltext
parser dead-loop.
Since normally it is not possible to insert broken multibyte sequence
into a table, this problem may arise only if table is damaged.
Affected statements are:
- CHECK/REPAIR against damaged table with fulltext index;
- boolean mode phrase search against damaged table with or
without fulltext inex;
- boolean mode searches without index;
- nlq searches.
No test case for this fix. Affects 5.0 only.
myisam/ft_parser.c@stripped, 2007-11-01 16:27:00+04:00, svoj@stripped +1 -1
When skipping leading spaces, skip broken characters as well (broken
characters a identified by mbl == 0).
diff -Nrup a/myisam/ft_parser.c b/myisam/ft_parser.c
--- a/myisam/ft_parser.c 2007-06-27 18:10:18 +05:00
+++ b/myisam/ft_parser.c 2007-11-01 16:27:00 +04:00
@@ -188,7 +188,7 @@ byte ft_simple_get_word(CHARSET_INFO *cs
do
{
- for (;; doc+= mbl)
+ for (;; doc+= (mbl ? mbl : 1))
{
if (doc >= end) DBUG_RETURN(0);
if (true_word_char(cs, *doc)) break;
