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Merge branch '10.5' into 10.6

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This commit is contained in:
Oleksandr Byelkin
2022-02-03 17:01:31 +01:00
parent 8d742fe4ac cf63eecef4
commit f5c5f8e41e
878 changed files with 17965 additions and 5946 deletions
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51
sql/sql_type.h
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@ -2,7 +2,7 @@
#define SQL_TYPE_H_INCLUDED
/*
Copyright (c) 2015 MariaDB Foundation.
Copyright (c) 2015, 2020, MariaDB Corporation.
Copyright (c) 2015, 2021, 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
@ -45,6 +45,7 @@ class Item_param;
class Item_cache;
class Item_copy;
class Item_func_or_sum;
class Item_sum;
class Item_sum_hybrid;
class Item_sum_sum;
class Item_sum_avg;
@ -3767,6 +3768,19 @@ public:
incompatible data type.
*/
virtual bool is_param_long_data_type() const { return false; }
/*
The base type handler "this" is derived from.
"This" inherits aggregation rules from the base type handler.
*/
virtual const Type_handler *type_handler_base() const
{
return NULL;
}
const Type_handler *type_handler_base_or_self() const
{
const Type_handler *res= type_handler_base();
return res ? res : this;
}
virtual const Type_handler *type_handler_for_comparison() const= 0;
virtual const Type_handler *type_handler_for_native_format() const
{
@ -7475,6 +7489,41 @@ public:
const Type_handler *h0, const Type_handler *h1);
};
class Type_handler_pair
{
const Type_handler *m_a;
const Type_handler *m_b;
public:
Type_handler_pair(const Type_handler *a,
const Type_handler *b)
:m_a(a), m_b(b)
{ }
const Type_handler *a() const { return m_a; }
const Type_handler *b() const { return m_b; }
/*
Change both handlers to their parent data type handlers, if available.
For example, VARCHAR/JSON -> VARCHAR.
@returns The number of handlers changed (0,1 or 2).
*/
bool to_base()
{
bool rc= false;
const Type_handler *na= m_a->type_handler_base();
const Type_handler *nb= m_b->type_handler_base();
if (na)
{
m_a= na; rc= true;
}
if (nb)
{
m_b= nb; rc= true;
}
return rc;
}
};
/*
Helper template to simplify creating builtin types with names.
Plugin types inherit from Type_handler_xxx types that do not set the name in