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/*
Copyright (c) 2013, 2023, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
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, version 2.0, 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,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
#ifndef TRIGGER_DEF_H_INCLUDED
#define TRIGGER_DEF_H_INCLUDED
///////////////////////////////////////////////////////////////////////////
/**
@file
@brief
This file defines all base public constants related to triggers in MySQL.
*/
///////////////////////////////////////////////////////////////////////////
/**
Constants to enumerate possible event types on which triggers can be fired.
*/
enum enum_trigger_event_type
{
TRG_EVENT_INSERT= 0,
TRG_EVENT_UPDATE= 1,
TRG_EVENT_DELETE= 2,
TRG_EVENT_MAX
};
/**
Constants to enumerate possible timings when triggers can be fired.
*/
enum enum_trigger_action_time_type
{
TRG_ACTION_BEFORE= 0,
TRG_ACTION_AFTER= 1,
TRG_ACTION_MAX
};
/**
Possible trigger ordering clause values:
- TRG_ORDER_NONE -- trigger ordering clause is not specified
- TRG_ORDER_FOLLOWS -- FOLLOWS clause
- TRG_ORDER_PRECEDES -- PRECEDES clause
*/
enum enum_trigger_order_type
{
TRG_ORDER_NONE= 0,
TRG_ORDER_FOLLOWS= 1,
TRG_ORDER_PRECEDES= 2
};
/**
Enum constants to designate NEW and OLD trigger pseudo-variables.
*/
enum enum_trigger_variable_type
{
TRG_OLD_ROW,
TRG_NEW_ROW
};
///////////////////////////////////////////////////////////////////////////
/*
The following constants are defined in trigger_loader.cc.
They would be private to Trigger_loader if we didn't have handler.
*/
extern const char * const TRG_EXT;
extern const char * const TRN_EXT;
///////////////////////////////////////////////////////////////////////////
#endif // TRIGGER_DEF_H_INCLUDED