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BUG#9535 Warning for "create table t as select uuid();"

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- Set max_length of Item_func_uuid to max_length*system_charset_info->mbmaxlen
  Note! Item_func_uuid should be set to use 'ascii' charset when hex(), format(), md5() etc will use 'ascii'


mysql-test/r/func_misc.result:
  Test results
mysql-test/t/func_misc.test:
  Test case
sql/item_strfunc.h:
  Multiply max_length of Item_func_uuid with system_charset_info->mbmaxlen
This commit is contained in:
unknown 2005-05-17 20:31:26 +02:00
commit 804ce01a31
3 changed files with 22 additions and 1 deletions
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7
sql/item_strfunc.h
View file

@ -727,7 +727,12 @@ public:
Item_func_uuid(): Item_str_func() {}
void fix_length_and_dec() {
collation.set(system_charset_info);
max_length= UUID_LENGTH;
/*
NOTE! uuid() should be changed to use 'ascii'
charset when hex(), format(), md5(), etc, and implicit
number-to-string conversion will use 'ascii'
*/
max_length= UUID_LENGTH * system_charset_info->mbmaxlen;
}
const char *func_name() const{ return "uuid"; }
String *val_str(String *);