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#ifndef ITEM_UUIDFUNC_INCLUDED
#define ITEM_UUIDFUNC_INCLUDED
/* Copyright (c) 2019,2024, MariaDB Corporation
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#include "item.h"
#include "sql_type_uuid_v1.h"
#include "sql_type_uuid_v4.h"
#include "sql_type_uuid_v7.h"
class Item_func_sys_guid: public Item_str_func
{
protected:
static size_t uuid_len()
{ return MY_UUID_BARE_STRING_LENGTH; }
public:
Item_func_sys_guid(THD *thd): Item_str_func(thd) {}
bool fix_length_and_dec(THD *thd) override
{
collation.set(DTCollation_numeric());
fix_char_length(uuid_len());
return FALSE;
}
bool const_item() const override { return false; }
table_map used_tables() const override { return RAND_TABLE_BIT; }
LEX_CSTRING func_name_cstring() const override
{
static LEX_CSTRING name= {STRING_WITH_LEN("sys_guid") };
return name;
}
String *val_str(String *) override;
bool check_vcol_func_processor(void *arg) override
{
return mark_unsupported_function(func_name(), "()", arg, VCOL_NON_DETERMINISTIC);
}
Item *do_get_copy(THD *thd) const override
{ return get_item_copy<Item_func_sys_guid>(thd, this); }
};
template<class UUIDvX>
class Item_func_uuid_vx: public Type_handler_uuid_new::Item_fbt_func
{
public:
using Item_fbt_func::Item_fbt_func;
bool const_item() const override { return false; }
table_map used_tables() const override { return RAND_TABLE_BIT; }
bool check_vcol_func_processor(void *arg) override
{
return mark_unsupported_function(func_name(), "()", arg, VCOL_NON_DETERMINISTIC);
}
String *val_str(String *str) override
{
DBUG_ASSERT(fixed());
return UUIDvX().to_string(str) ? NULL : str;
}
bool val_native(THD *thd, Native *to) override
{
DBUG_ASSERT(fixed());
return UUIDvX::construct_native(to);
}
};
class Item_func_uuid: public Item_func_uuid_vx<UUIDv1>
{
public:
using Item_func_uuid_vx::Item_func_uuid_vx;
LEX_CSTRING func_name_cstring() const override
{
static LEX_CSTRING name= {STRING_WITH_LEN("uuid") };
return name;
}
Item *do_get_copy(THD *thd) const override
{ return get_item_copy<Item_func_uuid>(thd, this); }
};
class Item_func_uuid_v4: public Item_func_uuid_vx<UUIDv4>
{
public:
using Item_func_uuid_vx::Item_func_uuid_vx;
LEX_CSTRING func_name_cstring() const override
{
static LEX_CSTRING name= {STRING_WITH_LEN("uuid_v4") };
return name;
}
Item *do_get_copy(THD *thd) const override
{ return get_item_copy<Item_func_uuid_v4>(thd, this); }
};
class Item_func_uuid_v7: public Item_func_uuid_vx<UUIDv7>
{
public:
using Item_func_uuid_vx::Item_func_uuid_vx;
LEX_CSTRING func_name_cstring() const override
{
static LEX_CSTRING name= {STRING_WITH_LEN("uuid_v7") };
return name;
}
Item *do_get_copy(THD *thd) const override
{ return get_item_copy<Item_func_uuid_v7>(thd, this); }
};
#endif // ITEM_UUIDFUNC_INCLUDED
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