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Bug #6737: REGEXP gives wrong result with case sensitive collation:

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- A new flag MY_CS_CSSORT was introduced for case sensitivity.
- Item_func_regexp doesn't substiture ICASE not only
  for binary collations but for case sensitive collations as well.
This commit is contained in:
unknown 2004-11-22 11:58:40 +04:00
commit 6d6b38c27f
7 changed files with 51 additions and 22 deletions
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11
mysys/charset.c
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@ -228,6 +228,7 @@ static int add_collation(CHARSET_INFO *cs)
}
else
{
uchar *sort_order= all_charsets[cs->number]->sort_order;
simple_cs_init_functions(all_charsets[cs->number]);
new->mbminlen= 1;
new->mbmaxlen= 1;
@ -236,6 +237,16 @@ static int add_collation(CHARSET_INFO *cs)
all_charsets[cs->number]->state |= MY_CS_LOADED;
}
all_charsets[cs->number]->state|= MY_CS_AVAILABLE;
/*
Check if case sensitive sort order: A < a < B.
We need MY_CS_FLAG for regex library, and for
case sensitivity flag for 5.0 client protocol,
to support isCaseSensitive() method in JDBC driver
*/
if (sort_order && sort_order['A'] < sort_order['a'] &&
sort_order['a'] < sort_order['B'])
all_charsets[cs->number]->state|= MY_CS_CSSORT;
}
}
else