Merge mysql.com:/home/bar/mysql-work/mysql-5.0.b29333

into  mysql.com:/home/bar/mysql-work/mysql-5.0-rpl

1 files changed, 11 insertions, 3 deletions

diff --git a/strings/ctype-cp932.c b/strings/ctype-cp932.c
index 0ece0ef1270..42325648037 100644
--- a/strings/ctype-cp932.c
+++ b/strings/ctype-cp932.c
@@ -250,9 +250,16 @@ static int my_strnncollsp_cp932(CHARSET_INFO *cs __attribute__((unused)),
   const uchar *a_end= a + a_length;
   const uchar *b_end= b + b_length;
   int res= my_strnncoll_cp932_internal(cs, &a, a_length, &b, b_length);
+
+#ifndef VARCHAR_WITH_DIFF_ENDSPACE_ARE_DIFFERENT_FOR_UNIQUE
+  diff_if_only_endspace_difference= 0;
+#endif
+
   if (!res && (a != a_end || b != b_end))
   {
-    int swap= 0;
+    int swap= 1;
+    if (diff_if_only_endspace_difference)
+      res= 1;                                   /* Assume 'a' is bigger */
     /*
       Check the next not space character of the longer key. If it's < ' ',
       then it's smaller than the other key.
@@ -263,11 +270,12 @@ static int my_strnncollsp_cp932(CHARSET_INFO *cs __attribute__((unused)),
       a_end= b_end;
       a= b;
       swap= -1;				/* swap sign of result */
+      res= -res;
     }
     for (; a < a_end ; a++)
     {
-      if (*a != ' ')
-	return ((int) *a - (int) ' ') ^ swap;
+      if (*a != (uchar) ' ')
+	return (*a < (uchar) ' ') ? -swap : swap;
     }
   }
   return res;