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Commit 86c1bf11 authored by Vlad Lesin's avatar Vlad Lesin
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MDEV-27992 DELETE fails to delete record after blocking is released 

MDEV-27025 allows to insert records before the record on which DELETE is
locked, as a result the DELETE misses those records, what causes serious ACID
violation.

Revert MDEV-27025, MDEV-27550. The test which shows the scenario of ACID
violation is added.
parent 02da00a9
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Inline Side-by-side
Showing with 249 additions and 427 deletions
mysql-test/suite/galera/disabled.def
View file @ 86c1bf11
......@@ -12,7 +12,6 @@
MW-328A : MDEV-22666 galera.MW-328A MTR failed: "Semaphore wait has lasted > 600 seconds" and do not release port 16002
MW-328B : MDEV-22666 galera.MW-328A MTR failed: "Semaphore wait has lasted > 600 seconds" and do not release port 16002
MW-328D : MDEV-27550 ER_LOCK_DEADLOCK is gone after MDEV-27025
MW-329 : MDEV-19962 Galera test failure on MW-329
galera_as_slave_replication_bundle : MDEV-15785 OPTION_GTID_BEGIN is set in Gtid_log_event::do_apply_event()
galera_concurrent_ctas : MDEV-24842 Galera test failure on galera_concurrent_ctas
......
mysql-test/suite/innodb/r/lock_delete_updated.result 0 → 100644
View file @ 86c1bf11
CREATE TABLE t(a INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t VALUES (3);
BEGIN;
connection default;
UPDATE t SET a = 2;
connect con1,localhost,root;
DELETE FROM t;
connection default;
UPDATE t SET a = 1;
COMMIT;
connection con1;
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
disconnect con1;
connection default;
# The above DELETE must delete all the rows in the table, so the
# following SELECT must show 0 rows.
SELECT count(*) FROM t;
count(*)
1
DROP TABLE t;
mysql-test/suite/innodb/r/lock_wait_conflict.result deleted 100644 → 0
View file @ 02da00a9
#
# MDEV-27025 insert-intention lock conflicts with waiting ORDINARY lock
#
CREATE TABLE t (a INT PRIMARY KEY, b INT NOT NULL UNIQUE) ENGINE=InnoDB;
connect prevent_purge,localhost,root,,;
start transaction with consistent snapshot;
connection default;
INSERT INTO t VALUES (20,20);
DELETE FROM t WHERE b = 20;
connect con_ins,localhost,root,,;
SET DEBUG_SYNC = 'row_ins_sec_index_entry_dup_locks_created SIGNAL ins_set_locks WAIT_FOR ins_cont';
INSERT INTO t VALUES(10, 20);
connect con_del,localhost,root,,;
SET DEBUG_SYNC = 'now WAIT_FOR ins_set_locks';
SET DEBUG_SYNC = 'lock_wait_suspend_thread_enter SIGNAL del_locked';
DELETE FROM t WHERE b = 20;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR del_locked';
SET DEBUG_SYNC = 'now SIGNAL ins_cont';
connection con_ins;
disconnect con_ins;
connection con_del;
disconnect con_del;
disconnect prevent_purge;
connection default;
SET DEBUG_SYNC = 'RESET';
DROP TABLE t;
mysql-test/suite/innodb/t/lock_delete_updated.test 0 → 100644
View file @ 86c1bf11
--source include/have_innodb.inc
--source include/count_sessions.inc
CREATE TABLE t(a INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t VALUES (3);
BEGIN;
connection default;
UPDATE t SET a = 2;
connect con1,localhost,root;
send DELETE FROM t;
connection default;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Updating" and info = "DELETE FROM t";
--source include/wait_condition.inc
UPDATE t SET a = 1;
COMMIT;
connection con1;
error ER_LOCK_DEADLOCK;
reap;
disconnect con1;
connection default;
--echo # The above DELETE must delete all the rows in the table, so the
--echo # following SELECT must show 0 rows.
SELECT count(*) FROM t;
DROP TABLE t;
--source include/wait_until_count_sessions.inc
mysql-test/suite/innodb/t/lock_wait_conflict.test deleted 100644 → 0
View file @ 02da00a9
--source include/have_innodb.inc
--source include/count_sessions.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
--echo #
--echo # MDEV-27025 insert-intention lock conflicts with waiting ORDINARY lock
--echo #
# The test checks the ability to acquire exclusive record lock if the acquiring
# transaction already holds a shared lock on the record and another transaction
# is waiting for a lock.
CREATE TABLE t (a INT PRIMARY KEY, b INT NOT NULL UNIQUE) ENGINE=InnoDB;
--connect(prevent_purge,localhost,root,,)
start transaction with consistent snapshot;
--connection default
INSERT INTO t VALUES (20,20);
DELETE FROM t WHERE b = 20;
--connect(con_ins,localhost,root,,)
SET DEBUG_SYNC = 'row_ins_sec_index_entry_dup_locks_created SIGNAL ins_set_locks WAIT_FOR ins_cont';
send
INSERT INTO t VALUES(10, 20);
--connect(con_del,localhost,root,,)
SET DEBUG_SYNC = 'now WAIT_FOR ins_set_locks';
SET DEBUG_SYNC = 'lock_wait_suspend_thread_enter SIGNAL del_locked';
###############################################################################
# This DELETE creates waiting ORDINARY X-lock for heap_no 2 as the record is
# delete-marked, this lock conflicts with ORDINARY S-lock set by the the last
# INSERT. After the last INSERT creates insert-intention lock on
# heap_no 2, this lock will conflict with waiting ORDINARY X-lock of this
# DELETE, what causes DEADLOCK error for this DELETE.
###############################################################################
send
DELETE FROM t WHERE b = 20;
--connection default
SET DEBUG_SYNC = 'now WAIT_FOR del_locked';
SET DEBUG_SYNC = 'now SIGNAL ins_cont';
--connection con_ins
--reap
--disconnect con_ins
--connection con_del
# Without the fix, ER_LOCK_DEADLOCK would be reported here.
--reap
--disconnect con_del
--disconnect prevent_purge
--connection default
SET DEBUG_SYNC = 'RESET';
DROP TABLE t;
--source include/wait_until_count_sessions.inc
mysql-test/suite/versioning/r/update.result
View file @ 86c1bf11
......@@ -283,6 +283,7 @@ connection default;
update t1 set b = 'foo';
connection con1;
update t1 set a = 'bar';
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
disconnect con1;
connection default;
drop table t1;
......
mysql-test/suite/versioning/t/update.test
View file @ 86c1bf11
......@@ -186,9 +186,7 @@ send update t1 set b = 'foo';
connection con1;
let $wait_condition= select count(*) from information_schema.innodb_lock_waits;
source include/wait_condition.inc;
# There must no be DEADLOCK here as con1 transaction already holds locks, and
# default's transaction lock is waiting, so the locks of the following "UPDATE"
# must not conflict with waiting lock.
error ER_LOCK_DEADLOCK;
update t1 set a = 'bar';
disconnect con1;
connection default;
......
storage/innobase/include/hash0hash.h
View file @ 86c1bf11
/*****************************************************************************
Copyright (c) 1997, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2018, 2022, MariaDB Corporation.
Copyright (c) 2018, 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
......@@ -31,31 +31,7 @@ Created 5/20/1997 Heikki Tuuri
#include "sync0rw.h"
struct hash_table_t;
struct hash_cell_t
{
/** singly-linked, nullptr terminated list of hash buckets */
void *node;
/** Insert an element after another.
@tparam T type of the element
@param after the element after which to insert
@param insert the being-inserted element
@param next the next-element pointer in T */
template<typename T>
void insert_after(T &after, T &insert, T *T::*next)
{
#ifdef UNIV_DEBUG
for (const T *c= static_cast<const T*>(node); c; c= c->*next)
if (c == &after)
goto found;
ut_error;
found:
#endif
insert.*next= after.*next;
after.*next= &insert;
}
};
struct hash_cell_t;
typedef void* hash_node_t;
......@@ -501,6 +477,10 @@ hash_unlock_x_all_but(
hash_table_t* table, /*!< in: hash table */
rw_lock_t* keep_lock); /*!< in: lock to keep */
struct hash_cell_t{
void* node; /*!< hash chain node, NULL if none */
};
/* The hash table structure */
struct hash_table_t {
enum hash_table_sync_t type; /*<! type of hash_table. */
......
storage/innobase/include/lock0lock.h
View file @ 86c1bf11
/*****************************************************************************
Copyright (c) 1996, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2017, 2020, 2022, MariaDB Corporation.
Copyright (c) 2017, 2020, 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
......@@ -888,29 +888,26 @@ class lock_sys_t
/*********************************************************************//**
Creates a new record lock and inserts it to the lock queue. Does NOT check
for deadlocks or lock compatibility!
@param[in] c_lock conflicting lock
@param[in] thr thread owning trx
@param[in] type_mode lock mode and wait flag, type is ignored and replaced by
LOCK_REC
@param[in] block buffer block containing the record
@param[in] heap_no heap number of the record
@param[in] index index of record
@param[in,out] trx transaction
@param[in] caller_owns_trx_mutex TRUE if caller owns trx mutex
@param[in] insert_before_waiting if true, inserts new B-tree record lock
just after the last non-waiting lock of the current transaction which is
located before the first waiting for the current transaction lock, otherwise
the lock is inserted at the end of the queue
@return created lock */
UNIV_INLINE
lock_t *lock_rec_create(lock_t *c_lock,
lock_t*
lock_rec_create(
/*============*/
#ifdef WITH_WSREP
que_thr_t *thr,
lock_t* c_lock, /*!< conflicting lock */
que_thr_t* thr, /*!< thread owning trx */
#endif
ulint type_mode, const buf_block_t *block,
ulint heap_no, dict_index_t *index, trx_t *trx,
bool caller_owns_trx_mutex,
bool insert_before_waiting= false);
ulint type_mode,/*!< in: lock mode and wait
flag, type is ignored and
replaced by LOCK_REC */
const buf_block_t* block, /*!< in: buffer block containing
the record */
ulint heap_no,/*!< in: heap number of the record */
dict_index_t* index, /*!< in: index of record */
trx_t* trx, /*!< in,out: transaction */
bool caller_owns_trx_mutex);
/*!< in: true if caller owns
trx mutex */
/*************************************************************//**
Removes a record lock request, waiting or granted, from the queue. */
......@@ -923,7 +920,6 @@ lock_rec_discard(
/** Create a new record lock and inserts it to the lock queue,
without checking for deadlocks or conflicts.
@param[in] c_lock conflicting lock
@param[in] type_mode lock mode and wait flag; type will be replaced
with LOCK_REC
@param[in] space tablespace id
......@@ -933,15 +929,11 @@ without checking for deadlocks or conflicts.
@param[in] index the index tree
@param[in,out] trx transaction
@param[in] holds_trx_mutex whether the caller holds trx->mutex
@param[in] insert_before_waiting if true, inserts new B-tree record lock
just after the last non-waiting lock of the current transaction which is
located before the first waiting for the current transaction lock, otherwise
the lock is inserted at the end of the queue
@return created lock */
lock_t*
lock_rec_create_low(
lock_t* c_lock,
#ifdef WITH_WSREP
lock_t* c_lock, /*!< conflicting lock */
que_thr_t* thr, /*!< thread owning trx */
#endif
ulint type_mode,
......@@ -951,12 +943,9 @@ lock_rec_create_low(
ulint heap_no,
dict_index_t* index,
trx_t* trx,
bool holds_trx_mutex,
bool insert_before_waiting = false);
bool holds_trx_mutex);
/** Enqueue a waiting request for a lock which cannot be granted immediately.
Check for deadlocks.
@param[in] c_lock conflicting lock
@param[in] type_mode the requested lock mode (LOCK_S or LOCK_X)
possibly ORed with LOCK_GAP or
LOCK_REC_NOT_GAP, ORed with
......@@ -975,7 +964,9 @@ Check for deadlocks.
(or it happened to commit) */
dberr_t
lock_rec_enqueue_waiting(
lock_t* c_lock,
#ifdef WITH_WSREP
lock_t* c_lock, /*!< conflicting lock */
#endif
ulint type_mode,
const buf_block_t* block,
ulint heap_no,
......
storage/innobase/include/lock0lock.inl
View file @ 86c1bf11
......@@ -101,37 +101,34 @@ lock_hash_get(
/*********************************************************************//**
Creates a new record lock and inserts it to the lock queue. Does NOT check
for deadlocks or lock compatibility!
@param[in] c_lock conflicting lock
@param[in] thr thread owning trx
@param[in] type_mode lock mode and wait flag, type is ignored and replaced by
LOCK_REC
@param[in] block buffer block containing the record
@param[in] heap_no heap number of the record
@param[in] index index of record
@param[in,out] trx transaction
@param[in] caller_owns_trx_mutex TRUE if caller owns trx mutex
@param[in] insert_before_waiting if true, inserts new B-tree record lock
just after the last non-waiting lock of the current transaction which is
located before the first waiting for the current transaction lock, otherwise
the lock is inserted at the end of the queue
@return created lock */
UNIV_INLINE
lock_t *lock_rec_create(lock_t *c_lock,
lock_t*
lock_rec_create(
/*============*/
#ifdef WITH_WSREP
que_thr_t *thr,
lock_t* c_lock, /*!< conflicting lock */
que_thr_t* thr, /*!< thread owning trx */
#endif
ulint type_mode, const buf_block_t *block,
ulint heap_no, dict_index_t *index, trx_t *trx,
bool caller_owns_trx_mutex,
bool insert_before_waiting)
ulint type_mode,/*!< in: lock mode and wait
flag, type is ignored and
replaced by LOCK_REC */
const buf_block_t* block, /*!< in: buffer block containing
the record */
ulint heap_no,/*!< in: heap number of the record */
dict_index_t* index, /*!< in: index of record */
trx_t* trx, /*!< in,out: transaction */
bool caller_owns_trx_mutex)
/*!< in: TRUE if caller owns
trx mutex */
{
btr_assert_not_corrupted(block, index);
return lock_rec_create_low(c_lock,
return lock_rec_create_low(
#ifdef WITH_WSREP
thr,
c_lock, thr,
#endif
type_mode,
block->page.id.space(), block->page.id.page_no(),
block->frame, heap_no, index, trx,
caller_owns_trx_mutex, insert_before_waiting);
block->frame, heap_no,
index, trx, caller_owns_trx_mutex);
}
storage/innobase/include/lock0priv.h
View file @ 86c1bf11
/*****************************************************************************
Copyright (c) 2007, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2015, 2018, 2022 MariaDB Corporation.
Copyright (c) 2015, 2018, 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
......@@ -585,9 +585,6 @@ lock_rec_get_next_const(
/*********************************************************************//**
Gets the first explicit lock request on a record.
@param[in] hash hash chain the lock on
@param[in] page_id page id
@param[in] heap_no heap number of the record
@return first lock, NULL if none exists */
UNIV_INLINE
lock_t*
......@@ -663,26 +660,15 @@ lock_table_has(
/** Set the wait status of a lock.
@param[in,out] lock lock that will be waited for
@param[in,out] trx transaction that will wait for the lock
@param[in] c_lock conflicting lock */
inline void lock_set_lock_and_trx_wait(lock_t* lock, trx_t* trx,
const lock_t *c_lock)
@param[in,out] trx transaction that will wait for the lock */
inline void lock_set_lock_and_trx_wait(lock_t* lock, trx_t* trx)
{
ut_ad(lock);
ut_ad(lock->trx == trx);
ut_ad(trx->lock.wait_lock == NULL);
ut_ad(lock_mutex_own());
ut_ad(trx_mutex_own(trx));
if (trx->lock.wait_trx) {
ut_ad(!c_lock || trx->lock.wait_trx == c_lock->trx);
ut_ad(trx->lock.wait_lock);
ut_ad((*trx->lock.wait_lock).trx == trx);
} else {
ut_ad(c_lock);
trx->lock.wait_trx = c_lock->trx;
ut_ad(!trx->lock.wait_lock);
}
trx->lock.wait_lock = lock;
lock->type_mode |= LOCK_WAIT;
}
......@@ -695,7 +681,6 @@ inline void lock_reset_lock_and_trx_wait(lock_t* lock)
ut_ad(lock_mutex_own());
ut_ad(lock->trx->lock.wait_lock == NULL
|| lock->trx->lock.wait_lock == lock);
lock->trx->lock.wait_trx= NULL;
lock->trx->lock.wait_lock = NULL;
lock->type_mode &= ~LOCK_WAIT;
}
......
storage/innobase/include/lock0priv.inl
View file @ 86c1bf11
......@@ -145,19 +145,22 @@ lock_rec_get_first_on_page_addr(
return(NULL);
}
/** Gets the first record lock on a page, where the page is identified by a
/*********************************************************************//**
Gets the first record lock on a page, where the page is identified by a
pointer to it.
@param[in] lock_hash lock hash table
@param[in] space page's space id
@param[in] page_no page number
@param[in] hash page's hash value in records hash table
@return first lock, NULL if none exists */
UNIV_INLINE
lock_t *lock_rec_get_first_on_page(hash_table_t *lock_hash, ulint space,
ulint page_no, ulint hash)
lock_t*
lock_rec_get_first_on_page(
/*=======================*/
hash_table_t* lock_hash, /*!< in: lock hash table */
const buf_block_t* block) /*!< in: buffer block */
{
ut_ad(lock_mutex_own());
ulint space = block->page.id.space();
ulint page_no = block->page.id.page_no();
ulint hash = buf_block_get_lock_hash_val(block);
for (lock_t* lock = static_cast<lock_t*>(
HASH_GET_FIRST(lock_hash, hash));
......@@ -174,20 +177,6 @@ lock_t *lock_rec_get_first_on_page(hash_table_t *lock_hash, ulint space,
return(NULL);
}
/** Gets the first record lock on a page, where the page is identified by a
pointer to it.
@param[in] lock_hash lock hash table
@param[in] block buffer block
@return first lock, NULL if none exists */
UNIV_INLINE
lock_t *lock_rec_get_first_on_page(hash_table_t *lock_hash,
const buf_block_t *block)
{
return lock_rec_get_first_on_page(lock_hash, block->page.id.space(),
block->page.id.page_no(),
buf_block_get_lock_hash_val(block));
}
/*********************************************************************//**
Gets the next explicit lock request on a record.
@return next lock, NULL if none exists or if heap_no == ULINT_UNDEFINED */
......@@ -221,21 +210,21 @@ lock_rec_get_next_const(
return(lock_rec_get_next(heap_no, (lock_t*) lock));
}
/** Gets the first explicit lock request on a record.
@param[in] hash hash chain the lock on
@param[in] space record's space id
@param[in] page_no record's page number
@param[in] lock_hash_val page's hash value in records hash table
@param[in] heap_no heap number of the record
/*********************************************************************//**
Gets the first explicit lock request on a record.
@return first lock, NULL if none exists */
UNIV_INLINE
lock_t *lock_rec_get_first(hash_table_t *hash, ulint space, ulint page_no,
uint32_t lock_hash_val, ulint heap_no)
lock_t*
lock_rec_get_first(
/*===============*/
hash_table_t* hash, /*!< in: hash chain the lock on */
const buf_block_t* block, /*!< in: block containing the record */
ulint heap_no)/*!< in: heap number of the record */
{
ut_ad(lock_mutex_own());
for (lock_t* lock = lock_rec_get_first_on_page(hash, space, page_no,
lock_hash_val); lock; lock = lock_rec_get_next_on_page(lock)) {
for (lock_t* lock = lock_rec_get_first_on_page(hash, block); lock;
lock = lock_rec_get_next_on_page(lock)) {
if (lock_rec_get_nth_bit(lock, heap_no)) {
return(lock);
}
......@@ -244,20 +233,6 @@ lock_t *lock_rec_get_first(hash_table_t *hash, ulint space, ulint page_no,
return(NULL);
}
/** Gets the first explicit lock request on a record.
@param[in] hash hash chain the lock on
@param[in] block block containing the record
@param[in] heap_no heap number of the record
@return first lock, NULL if none exists */
UNIV_INLINE
lock_t *lock_rec_get_first(hash_table_t *hash, const buf_block_t *block,
ulint heap_no)
{
return lock_rec_get_first(hash, block->page.id.space(),
block->page.id.page_no(),
buf_block_get_lock_hash_val(block), heap_no);
}
/*********************************************************************//**
Gets the nth bit of a record lock.
@return TRUE if bit set also if i == ULINT_UNDEFINED return FALSE*/
......
storage/innobase/include/trx0trx.h
View file @ 86c1bf11
......@@ -436,9 +436,7 @@ struct trx_lock_t {
trx_que_t que_state; /*!< valid when trx->state
== TRX_STATE_ACTIVE: TRX_QUE_RUNNING,
TRX_QUE_LOCK_WAIT, ... */
/** Transaction being waited for; protected by the same mutexes as
wait_lock */
trx_t* wait_trx;
lock_t* wait_lock; /*!< if trx execution state is
TRX_QUE_LOCK_WAIT, this points to
the lock request, otherwise this is
......
storage/innobase/lock/lock0lock.cc
View file @ 86c1bf11
This diff is collapsed.
storage/innobase/lock/lock0prdt.cc
View file @ 86c1bf11
/*****************************************************************************
Copyright (c) 2014, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2018, 2022 MariaDB Corporation.
Copyright (c) 2018, 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
......@@ -487,13 +487,9 @@ lock_prdt_add_to_queue(
}
}
/* Note: We will not pass any conflicting lock to lock_rec_create(),
because we should be moving an existing waiting lock request. */
ut_ad(!(type_mode & LOCK_WAIT) || trx->lock.wait_trx);
lock = lock_rec_create(NULL,
lock = lock_rec_create(
#ifdef WITH_WSREP
NULL, /* FIXME: replicate SPATIAL INDEX locks */
NULL, NULL, /* FIXME: replicate SPATIAL INDEX locks */
#endif
type_mode, block, PRDT_HEAPNO, index, trx,
caller_owns_trx_mutex);
......@@ -583,7 +579,9 @@ lock_prdt_insert_check_and_lock(
trx_mutex_enter(trx);
err = lock_rec_enqueue_waiting(
#ifdef WITH_WSREP
NULL, /* FIXME: replicate SPATIAL INDEX locks */
#endif
LOCK_X | LOCK_PREDICATE | LOCK_INSERT_INTENTION,
block, PRDT_HEAPNO, index, thr, prdt);
......@@ -831,9 +829,9 @@ lock_prdt_lock(
lock_t* lock = lock_rec_get_first_on_page(hash, block);
if (lock == NULL) {
lock = lock_rec_create(NULL,
lock = lock_rec_create(
#ifdef WITH_WSREP
NULL, /* FIXME: replicate SPATIAL INDEX locks */
NULL, NULL, /* FIXME: replicate SPATIAL INDEX locks */
#endif
ulint(mode) | type_mode, block, PRDT_HEAPNO,
index, trx, FALSE);
......@@ -863,8 +861,10 @@ lock_prdt_lock(
if (wait_for != NULL) {
err = lock_rec_enqueue_waiting(
#ifdef WITH_WSREP
NULL, /* FIXME: replicate
SPATIAL INDEX locks */
#endif
ulint(mode) | type_mode,
block, PRDT_HEAPNO,
index, thr, prdt);
......@@ -948,9 +948,9 @@ lock_place_prdt_page_lock(
}
if (lock == NULL) {
lock = lock_rec_create_low(NULL,
lock = lock_rec_create_low(
#ifdef WITH_WSREP
NULL, /* FIXME: replicate SPATIAL INDEX locks */
NULL, NULL, /* FIXME: replicate SPATIAL INDEX locks */
#endif
mode, space, page_no, NULL, PRDT_HEAPNO,
index, trx, FALSE);
......
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