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/*****************************************************************************
Copyright (c) 2005, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2019, 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 Street, Fifth Floor, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file include/handler0alter.h
Smart ALTER TABLE
*******************************************************/
#include "rem0types.h"
/*************************************************************//**
Copies an InnoDB record to table->record[0]. */
void
innobase_rec_to_mysql(
/*==================*/
struct TABLE* table, /*!< in/out: MySQL table */
const rec_t* rec, /*!< in: record */
const dict_index_t* index, /*!< in: index */
const rec_offs* offsets)/*!< in: rec_get_offsets(
rec, index, ...) */
MY_ATTRIBUTE((nonnull));
/*************************************************************//**
Copies an InnoDB index entry to table->record[0]. */
void
innobase_fields_to_mysql(
/*=====================*/
struct TABLE* table, /*!< in/out: MySQL table */
const dict_index_t* index, /*!< in: InnoDB index */
const dfield_t* fields) /*!< in: InnoDB index fields */
MY_ATTRIBUTE((nonnull));
/*************************************************************//**
Copies an InnoDB row to table->record[0]. */
void
innobase_row_to_mysql(
/*==================*/
struct TABLE* table, /*!< in/out: MySQL table */
const dict_table_t* itab, /*!< in: InnoDB table */
const dtuple_t* row) /*!< in: InnoDB row */
MY_ATTRIBUTE((nonnull));
/** Generate the next autoinc based on a snapshot of the session
auto_increment_increment and auto_increment_offset variables. */
struct ib_sequence_t {
/**
@param thd the session
@param start_value the lower bound
@param max_value the upper bound (inclusive) */
ib_sequence_t(THD* thd, ulonglong start_value, ulonglong max_value);
/** Postfix increment
@return the value to insert */
ulonglong operator++(int) UNIV_NOTHROW;
/** Check if the autoinc "sequence" is exhausted.
@return true if the sequence is exhausted */
bool eof() const UNIV_NOTHROW
{
return(m_eof);
}
/**
@return the next value in the sequence */
ulonglong last() const UNIV_NOTHROW
{
ut_ad(m_next_value > 0);
return(m_next_value);
}
/** @return maximum column value
@retval 0 if not adding AUTO_INCREMENT column */
ulonglong max_value() const { return m_max_value; }
private:
/** Maximum value if adding an AUTO_INCREMENT column, else 0 */
ulonglong m_max_value;
/** Value of auto_increment_increment */
ulong m_increment;
/** Value of auto_increment_offset */
ulong m_offset;
/** Next value in the sequence */
ulonglong m_next_value;
/** true if no more values left in the sequence */
bool m_eof;
};
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