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Fixed code review change to ensure that VALUES constants are of the same result type as the field they are constants for

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This commit is contained in:
Mikael Ronstrom
2009-10-28 19:20:32 +01:00
parent c94237e530
commit 470a44c70d
3 changed files with 85 additions and 36 deletions
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93
sql/sql_partition.cc
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@ -2027,35 +2027,57 @@ static int add_partition_options(File fptr, partition_element *p_elem)
return err + add_engine(fptr,p_elem->engine_type);
}
static int check_part_field(Create_field *sql_field,
static int check_part_field(enum_field_types sql_type,
const char *field_name,
Item_result *result_type,
bool *need_cs_check)
{
*need_cs_check= FALSE;
if (sql_field->sql_type == MYSQL_TYPE_TIMESTAMP)
goto error;
if (sql_field->sql_type < MYSQL_TYPE_VARCHAR ||
sql_field->sql_type == MYSQL_TYPE_NEWDECIMAL)
return FALSE;
if (sql_field->sql_type >= MYSQL_TYPE_TINY_BLOB &&
sql_field->sql_type <= MYSQL_TYPE_BLOB)
if (sql_type >= MYSQL_TYPE_TINY_BLOB &&
sql_type <= MYSQL_TYPE_BLOB)
{
my_error(ER_BLOB_FIELD_IN_PART_FUNC_ERROR, MYF(0));
return TRUE;
}
switch (sql_field->sql_type)
switch (sql_type)
{
case MYSQL_TYPE_NEWDECIMAL:
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_TINY:
case MYSQL_TYPE_SHORT:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_LONGLONG:
case MYSQL_TYPE_INT24:
*result_type= INT_RESULT;
*need_cs_check= FALSE;
return FALSE;
case MYSQL_TYPE_NEWDATE:
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_TIME:
case MYSQL_TYPE_DATETIME:
*result_type= STRING_RESULT;
*need_cs_check= FALSE;
return FALSE;
case MYSQL_TYPE_VARCHAR:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_VAR_STRING:
*result_type= STRING_RESULT;
*need_cs_check= TRUE;
return FALSE;
break;
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_NULL:
case MYSQL_TYPE_FLOAT:
case MYSQL_TYPE_DOUBLE:
case MYSQL_TYPE_BIT:
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
case MYSQL_TYPE_GEOMETRY:
goto error;
default:
goto error;
}
error:
my_error(ER_FIELD_TYPE_NOT_ALLOWED_AS_PARTITION_FIELD, MYF(0),
sql_field->field_name);
field_name);
return TRUE;
}
@ -2111,6 +2133,8 @@ static int add_column_list_values(File fptr, partition_info *part_info,
{
String *res;
CHARSET_INFO *field_cs;
bool need_cs_check= FALSE;
Item_result result_type= STRING_RESULT;
/*
This function is called at a very early stage, even before
@ -2121,7 +2145,6 @@ static int add_column_list_values(File fptr, partition_info *part_info,
if (create_info)
{
Create_field *sql_field;
bool need_cs_check= FALSE;
if (!(sql_field= get_sql_field(field_name,
alter_info)))
@ -2129,7 +2152,10 @@ static int add_column_list_values(File fptr, partition_info *part_info,
my_error(ER_FIELD_NOT_FOUND_PART_ERROR, MYF(0));
return 1;
}
if (check_part_field(sql_field, &need_cs_check))
if (check_part_field(sql_field->sql_type,
sql_field->field_name,
&result_type,
&need_cs_check))
return 1;
if (need_cs_check)
field_cs= get_sql_field_charset(sql_field, create_info);
@ -2137,7 +2163,20 @@ static int add_column_list_values(File fptr, partition_info *part_info,
field_cs= NULL;
}
else
field_cs= part_info->part_field_array[i]->charset();
{
Field *field= part_info->part_field_array[i];
result_type= field->result_type();
if (check_part_field(field->real_type(),
field->field_name,
&result_type,
&need_cs_check))
return 1;
DBUG_ASSERT(result_type == field->result_type());
if (need_cs_check)
field_cs= field->charset();
else
field_cs= NULL;
}
if (field_cs && field_cs != item_expr->collation.collation)
{
if (!(item_expr= convert_charset_partition_constant(item_expr,
@ -2147,24 +2186,34 @@ static int add_column_list_values(File fptr, partition_info *part_info,
return 1;
}
}
res= item_expr->val_str(&str);
if (!res)
if (result_type != item_expr->result_type())
{
my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
my_error(ER_WRONG_TYPE_COLUMN_VALUE_ERROR, MYF(0));
return 1;
}
if (item_expr->result_type() == STRING_RESULT)
if (result_type == INT_RESULT)
{
longlong val;
val= item_expr->val_int();
err+= add_int(fptr, val);
}
else
{
res= item_expr->val_str(&str);
if (!res)
{
my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
return 1;
}
if (field_cs)
{
err+= add_string(fptr,"_");
err+= add_string(fptr, field_cs->csname);
}
err+= add_string(fptr,"'");
}
err+= add_string_object(fptr, res);
if (item_expr->result_type() == STRING_RESULT)
err+= add_string_object(fptr, res);
err+= add_string(fptr,"'");
}
}
}
if (i != (num_elements - 1))