Commit f8c2f9d1 authored by svoj@mysql.com/june.mysql.com's avatar svoj@mysql.com/june.mysql.com
Browse files

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.
parent f9fc31f9

myisam/ft_parser.c

+1 −1
Original line number Diff line number Diff line
@@ -188,7 +188,7 @@ byte ft_simple_get_word(CHARSET_INFO *cs, byte **start, const byte *end, 


  do

  {

    for (;; doc+= mbl)

    for (;; doc+= (mbl ? mbl : 1))

    {

      if (doc >= end) DBUG_RETURN(0);

      if (true_word_char(cs, *doc)) break;