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Merge bk-internal.mysql.com:/home/bk/mysql-5.0-build

Browse Source 
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-build
This commit is contained in:
cmiller@zippy.cornsilk.net
2008-04-02 10:58:37 -04:00
parent 4f4d10da03 c83c18c058
commit 844939eed6
7 changed files with 435 additions and 62 deletions
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57
sql/item_create.cc
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@ -464,8 +464,42 @@ Item *create_func_cast(Item *a, Cast_target cast_type,
case ITEM_CAST_TIME: res= new Item_time_typecast(a); break;
case ITEM_CAST_DATETIME: res= new Item_datetime_typecast(a); break;
case ITEM_CAST_DECIMAL:
len= c_len ? atoi(c_len) : 0;
dec= c_dec ? atoi(c_dec) : 0;
if (c_len == NULL)
{
len= 0;
}
else
{
ulong decoded_size;
errno= 0;
decoded_size= strtoul(c_len, NULL, 10);
if (errno != 0)
{
my_error(ER_TOO_BIG_PRECISION, MYF(0), c_len, a->name,
DECIMAL_MAX_PRECISION);
return NULL;
}
len= decoded_size;
}
if (c_dec == NULL)
{
dec= 0;
}
else
{
ulong decoded_size;
errno= 0;
decoded_size= strtoul(c_dec, NULL, 10);
if ((errno != 0) || (decoded_size > UINT_MAX))
{
my_error(ER_TOO_BIG_SCALE, MYF(0), c_dec, a->name,
DECIMAL_MAX_SCALE);
return NULL;
}
dec= decoded_size;
}
my_decimal_trim(&len, &dec);
if (len < dec)
{
@ -486,8 +520,25 @@ Item *create_func_cast(Item *a, Cast_target cast_type,
}
res= new Item_decimal_typecast(a, len, dec);
break;
case ITEM_CAST_CHAR:
len= c_len ? atoi(c_len) : -1;
if (c_len == NULL)
{
len= LL(-1);
}
else
{
ulong decoded_size;
errno= 0;
decoded_size= strtoul(c_len, NULL, 10);
if (errno != 0)
{
my_error(ER_TOO_BIG_DISPLAYWIDTH, MYF(0), "cast as char", MAX_FIELD_BLOBLENGTH);
return NULL;
}
len= decoded_size;
}
res= new Item_char_typecast(a, len, cs ? cs :
current_thd->variables.collation_connection);
break;