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fix for bug #12595 (Escape character has to be exactly one)

Browse source 
mysql-test/r/select.result:
  results for test of bug 12595
mysql-test/t/select.test:
  test for bug #12595
sql/item_cmpfunc.cc:
  check whether the size of the escape string is exactly 1 (bug #12595)
This commit is contained in:
unknown 2005-08-16 15:39:40 +02:00
commit 8056a7df59
3 changed files with 29 additions and 1 deletions
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8
sql/item_cmpfunc.cc
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@ -2792,8 +2792,14 @@ bool Item_func_like::fix_fields(THD *thd, Item **ref)
{
/* If we are on execution stage */
String *escape_str= escape_item->val_str(&tmp_value1);
/* ESCAPE must be 1 char in length.*/
if (escape_str && escape_str->numchars() != 1)
{
my_error(ER_WRONG_ARGUMENTS,MYF(0),"ESCAPE");
return TRUE;
}
escape= escape_str ? *(escape_str->ptr()) : '\\';
/*
We could also do boyer-more for non-const items, but as we would have to
recompute the tables for each row it's not worth it.