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fec844aca8
Contains also:
MDEV-10549 mysqld: sql/handler.cc:2692: int handler::ha_index_first(uchar*): Assertion `table_share->tmp_table != NO_TMP_TABLE || m_lock_type != 2' failed. (branch bb-10.2-jan)
Unlike MySQL, InnoDB still uses THR_LOCK in MariaDB
MDEV-10548 Some of the debug sync waits do not work with InnoDB 5.7 (branch bb-10.2-jan)
enable tests that were fixed in MDEV-10549
MDEV-10548 Some of the debug sync waits do not work with InnoDB 5.7 (branch bb-10.2-jan)
fix main.innodb_mysql_sync - re-enable online alter for partitioned innodb tables
154 lines
6.2 KiB
C++
154 lines
6.2 KiB
C++
/*****************************************************************************
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Copyright (c) 1997, 2015, Oracle and/or its affiliates. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/row0vers.h
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Row versions
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Created 2/6/1997 Heikki Tuuri
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*******************************************************/
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#ifndef row0vers_h
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#define row0vers_h
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#include "univ.i"
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#include "data0data.h"
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#include "dict0types.h"
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#include "trx0types.h"
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#include "que0types.h"
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#include "rem0types.h"
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#include "mtr0mtr.h"
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#include "dict0mem.h"
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// Forward declaration
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class ReadView;
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/*****************************************************************//**
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Finds out if an active transaction has inserted or modified a secondary
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index record.
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@return 0 if committed, else the active transaction id;
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NOTE that this function can return false positives but never false
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negatives. The caller must confirm all positive results by calling
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trx_is_active() while holding lock_sys->mutex. */
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trx_t*
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row_vers_impl_x_locked(
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/*===================*/
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const rec_t* rec, /*!< in: record in a secondary index */
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dict_index_t* index, /*!< in: the secondary index */
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const ulint* offsets);/*!< in: rec_get_offsets(rec, index) */
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/*****************************************************************//**
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Finds out if we must preserve a delete marked earlier version of a clustered
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index record, because it is >= the purge view.
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@param[in] trx_id transaction id in the version
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@param[in] name table name
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@param[in,out] mtr mini transaction holding the latch on the
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clustered index record; it will also hold
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the latch on purge_view
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@return TRUE if earlier version should be preserved */
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ibool
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row_vers_must_preserve_del_marked(
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/*==============================*/
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trx_id_t trx_id,
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const table_name_t& name,
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mtr_t* mtr);
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/*****************************************************************//**
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Finds out if a version of the record, where the version >= the current
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purge view, should have ientry as its secondary index entry. We check
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if there is any not delete marked version of the record where the trx
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id >= purge view, and the secondary index entry == ientry; exactly in
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this case we return TRUE.
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@return TRUE if earlier version should have */
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ibool
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row_vers_old_has_index_entry(
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/*=========================*/
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ibool also_curr,/*!< in: TRUE if also rec is included in the
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versions to search; otherwise only versions
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prior to it are searched */
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const rec_t* rec, /*!< in: record in the clustered index; the
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caller must have a latch on the page */
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mtr_t* mtr, /*!< in: mtr holding the latch on rec; it will
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also hold the latch on purge_view */
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dict_index_t* index, /*!< in: the secondary index */
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const dtuple_t* ientry, /*!< in: the secondary index entry */
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roll_ptr_t roll_ptr,/*!< in: roll_ptr for the purge record */
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trx_id_t trx_id);/*!< in: transaction ID on the purging record */
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/*****************************************************************//**
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Constructs the version of a clustered index record which a consistent
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read should see. We assume that the trx id stored in rec is such that
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the consistent read should not see rec in its present version.
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@return DB_SUCCESS or DB_MISSING_HISTORY */
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dberr_t
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row_vers_build_for_consistent_read(
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/*===============================*/
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const rec_t* rec, /*!< in: record in a clustered index; the
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caller must have a latch on the page; this
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latch locks the top of the stack of versions
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of this records */
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mtr_t* mtr, /*!< in: mtr holding the latch on rec; it will
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also hold the latch on purge_view */
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dict_index_t* index, /*!< in: the clustered index */
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ulint** offsets,/*!< in/out: offsets returned by
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rec_get_offsets(rec, index) */
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ReadView* view, /*!< in: the consistent read view */
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mem_heap_t** offset_heap,/*!< in/out: memory heap from which
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the offsets are allocated */
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mem_heap_t* in_heap,/*!< in: memory heap from which the memory for
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*old_vers is allocated; memory for possible
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intermediate versions is allocated and freed
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locally within the function */
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rec_t** old_vers,/*!< out, own: old version, or NULL
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if the history is missing or the record
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does not exist in the view, that is,
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it was freshly inserted afterwards */
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const dtuple_t**vrow); /*!< out: reports virtual column info if any */
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/*****************************************************************//**
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Constructs the last committed version of a clustered index record,
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which should be seen by a semi-consistent read. */
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void
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row_vers_build_for_semi_consistent_read(
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/*====================================*/
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const rec_t* rec, /*!< in: record in a clustered index; the
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caller must have a latch on the page; this
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latch locks the top of the stack of versions
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of this records */
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mtr_t* mtr, /*!< in: mtr holding the latch on rec */
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dict_index_t* index, /*!< in: the clustered index */
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ulint** offsets,/*!< in/out: offsets returned by
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rec_get_offsets(rec, index) */
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mem_heap_t** offset_heap,/*!< in/out: memory heap from which
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the offsets are allocated */
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mem_heap_t* in_heap,/*!< in: memory heap from which the memory for
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*old_vers is allocated; memory for possible
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intermediate versions is allocated and freed
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locally within the function */
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const rec_t** old_vers,/*!< out: rec, old version, or NULL if the
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record does not exist in the view, that is,
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it was freshly inserted afterwards */
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const dtuple_t**vrow); /*!< out: holds virtual column info if any
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is updated in the view */
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#ifndef UNIV_NONINL
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#include "row0vers.ic"
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#endif
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#endif
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