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/*****************************************************************************
Copyright (c) 2011, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2017, 2022, 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/row0log.h
Modification log for online index creation and online table rebuild
Created 2011-05-26 Marko Makela
*******************************************************/
#pragma once
#include "que0types.h"
#include "mtr0types.h"
#include "row0types.h"
#include "rem0types.h"
#include "dict0dict.h"
#include "trx0types.h"
#include "trx0undo.h"
class ut_stage_alter_t;
extern Atomic_counter<ulint> onlineddl_rowlog_rows;
extern ulint onlineddl_rowlog_pct_used;
extern ulint onlineddl_pct_progress;
/******************************************************//**
Allocate the row log for an index and flag the index
for online creation.
@retval true if success, false if not */
bool
row_log_allocate(
/*=============*/
const trx_t* trx, /*!< in: the ALTER TABLE transaction */
dict_index_t* index, /*!< in/out: index */
dict_table_t* table, /*!< in/out: new table being rebuilt,
or NULL when creating a secondary index */
bool same_pk,/*!< in: whether the definition of the
PRIMARY KEY has remained the same */
const dtuple_t* defaults,
/*!< in: default values of
added, changed columns, or NULL */
const ulint* col_map,/*!< in: mapping of old column
numbers to new ones, or NULL if !table */
const char* path, /*!< in: where to create temporary file */
const TABLE* old_table, /*!< in:table definition before alter */
bool allow_not_null) /*!< in: allow null to non-null
conversion */
MY_ATTRIBUTE((nonnull(1), warn_unused_result));
/******************************************************//**
Free the row log for an index that was being created online. */
void
row_log_free(
/*=========*/
row_log_t* log) /*!< in,own: row log */
MY_ATTRIBUTE((nonnull));
/******************************************************//**
Free the row log for an index on which online creation was aborted. */
inline void row_log_abort_sec(dict_index_t *index)
{
ut_ad(index->lock.have_u_or_x());
ut_ad(!index->is_clust());
dict_index_set_online_status(index, ONLINE_INDEX_ABORTED);
row_log_free(index->online_log);
index->online_log= nullptr;
}
/** Logs an operation to a secondary index that is (or was) being created.
@param index index, S or X latched
@param tuple index tuple
@param trx_id transaction ID for insert, or 0 for delete
@retval false if row_log_apply() failure happens
or true otherwise */
bool row_log_online_op(dict_index_t *index, const dtuple_t *tuple,
trx_id_t trx_id) ATTRIBUTE_COLD;
/******************************************************//**
Gets the error status of the online index rebuild log.
@return DB_SUCCESS or error code */
dberr_t
row_log_table_get_error(
/*====================*/
const dict_index_t* index) /*!< in: clustered index of a table
that is being rebuilt online */
MY_ATTRIBUTE((nonnull, warn_unused_result));
/** Check whether a virtual column is indexed in the new table being
created during alter table
@param[in] index cluster index
@param[in] v_no virtual column number
@return true if it is indexed, else false */
bool
row_log_col_is_indexed(
const dict_index_t* index,
ulint v_no);
/******************************************************//**
Logs a delete operation to a table that is being rebuilt.
This will be merged in row_log_table_apply_delete(). */
void
row_log_table_delete(
/*=================*/
const rec_t* rec, /*!< in: clustered index leaf page record,
page X-latched */
dict_index_t* index, /*!< in/out: clustered index, S-latched
or X-latched */
const rec_offs* offsets,/*!< in: rec_get_offsets(rec,index) */
const byte* sys) /*!< in: DB_TRX_ID,DB_ROLL_PTR that should
be logged, or NULL to use those in rec */
ATTRIBUTE_COLD __attribute__((nonnull(1,2,3)));
/******************************************************//**
Logs an update operation to a table that is being rebuilt.
This will be merged in row_log_table_apply_update(). */
void
row_log_table_update(
/*=================*/
const rec_t* rec, /*!< in: clustered index leaf page record,
page X-latched */
dict_index_t* index, /*!< in/out: clustered index, S-latched
or X-latched */
const rec_offs* offsets,/*!< in: rec_get_offsets(rec,index) */
const dtuple_t* old_pk);/*!< in: row_log_table_get_pk()
before the update */
/******************************************************//**
Constructs the old PRIMARY KEY and DB_TRX_ID,DB_ROLL_PTR
of a table that is being rebuilt.
@return tuple of PRIMARY KEY,DB_TRX_ID,DB_ROLL_PTR in the rebuilt table,
or NULL if the PRIMARY KEY definition does not change */
const dtuple_t*
row_log_table_get_pk(
/*=================*/
const rec_t* rec, /*!< in: clustered index leaf page record,
page X-latched */
dict_index_t* index, /*!< in/out: clustered index, S-latched
or X-latched */
const rec_offs* offsets,/*!< in: rec_get_offsets(rec,index),
or NULL */
byte* sys, /*!< out: DB_TRX_ID,DB_ROLL_PTR for
row_log_table_delete(), or NULL */
mem_heap_t** heap) /*!< in/out: memory heap where allocated */
ATTRIBUTE_COLD __attribute__((nonnull(1,2,5), warn_unused_result));
/******************************************************//**
Logs an insert to a table that is being rebuilt.
This will be merged in row_log_table_apply_insert(). */
void
row_log_table_insert(
/*=================*/
const rec_t* rec, /*!< in: clustered index leaf page record,
page X-latched */
dict_index_t* index, /*!< in/out: clustered index, S-latched
or X-latched */
const rec_offs* offsets);/*!< in: rec_get_offsets(rec,index) */
/** Apply the row_log_table log to a table upon completing rebuild.
@param[in] thr query graph
@param[in] old_table old table
@param[in,out] table MySQL table (for reporting duplicates)
@param[in,out] stage performance schema accounting object, used by
ALTER TABLE. stage->begin_phase_log_table() will be called initially and then
stage->inc() will be called for each block of log that is applied.
@param[in] new_table Altered table
@return DB_SUCCESS, or error code on failure */
dberr_t
row_log_table_apply(
que_thr_t* thr,
dict_table_t* old_table,
struct TABLE* table,
ut_stage_alter_t* stage,
dict_table_t* new_table)
MY_ATTRIBUTE((warn_unused_result));
/******************************************************//**
Get the latest transaction ID that has invoked row_log_online_op()
during online creation.
@return latest transaction ID, or 0 if nothing was logged */
trx_id_t
row_log_get_max_trx(
/*================*/
dict_index_t* index) /*!< in: index, must be locked */
MY_ATTRIBUTE((nonnull, warn_unused_result));
/** Apply the row log to the index upon completing index creation.
@param[in] trx transaction (for checking if the operation was
interrupted)
@param[in,out] index secondary index
@param[in,out] table MySQL table (for reporting duplicates)
@param[in,out] stage performance schema accounting object, used by
ALTER TABLE. stage->begin_phase_log_index() will be called initially and then
stage->inc() will be called for each block of log that is applied.
@return DB_SUCCESS, or error code on failure */
dberr_t
row_log_apply(
const trx_t* trx,
dict_index_t* index,
struct TABLE* table,
ut_stage_alter_t* stage)
MY_ATTRIBUTE((warn_unused_result));
/** Get the n_core_fields of online log for the index
@param index index whose n_core_fields of log to be accessed
@return number of n_core_fields */
unsigned row_log_get_n_core_fields(const dict_index_t *index);
/** Get the error code of online log for the index
@param index online index
@return error code present in online log */
dberr_t row_log_get_error(const dict_index_t *index);
#ifdef HAVE_PSI_STAGE_INTERFACE
/** Estimate how much work is to be done by the log apply phase
of an ALTER TABLE for this index.
@param[in] index index whose log to assess
@return work to be done by log-apply in abstract units
*/
ulint
row_log_estimate_work(
const dict_index_t* index);
#endif /* HAVE_PSI_STAGE_INTERFACE */
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