Commit 927b4a12 authored by Vasil Dimov's avatar Vasil Dimov

Merge mysql-5.1-innodb -> mysql-5.5-innodb

parents 64d07bf7 add4af29
CREATE TABLE bug53046_1 (c1 INT PRIMARY KEY) ENGINE=INNODB;
CREATE TABLE bug53046_2 (c2 INT PRIMARY KEY,
FOREIGN KEY (c2) REFERENCES bug53046_1(c1)
ON UPDATE CASCADE ON DELETE CASCADE) ENGINE=INNODB;
INSERT INTO bug53046_1 VALUES (1);
INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
INSERT INTO bug53046_2 VALUES (1), (2);
ANALYZE TABLE bug53046_1;
Table Op Msg_type Msg_text
test.bug53046_1 analyze status OK
SHOW TABLE STATUS LIKE 'bug53046_1';
UPDATE bug53046_1 SET c1 = c1 - 1;
DELETE FROM bug53046_1;
INSERT INTO bug53046_1 VALUES (1);
INSERT INTO bug53046_2 VALUES (1);
TRUNCATE TABLE bug53046_2;
DROP TABLE bug53046_2;
DROP TABLE bug53046_1;
#
# http://bugs.mysql.com/53046
# dict_update_statistics_low can still be run concurrently on same table
#
# This is a symbolic test, it would not fail if the bug is present.
# Rather those SQL commands have been used during manual testing under
# UNIV_DEBUG & UNIV_SYNC_DEBUG to test all changed codepaths for locking
# correctness.
#
-- source include/have_innodb.inc
CREATE TABLE bug53046_1 (c1 INT PRIMARY KEY) ENGINE=INNODB;
CREATE TABLE bug53046_2 (c2 INT PRIMARY KEY,
FOREIGN KEY (c2) REFERENCES bug53046_1(c1)
ON UPDATE CASCADE ON DELETE CASCADE) ENGINE=INNODB;
INSERT INTO bug53046_1 VALUES (1);
let $i = 5;
while ($i) {
eval INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
dec $i;
}
INSERT INTO bug53046_2 VALUES (1), (2);
# CREATE TABLE innodb_table_monitor (a int) ENGINE=INNODB;
# wait more than 1 minute and observe the mysqld output
# DROP TABLE innodb_table_monitor;
ANALYZE TABLE bug53046_1;
# this prints create time and other nondeterministic data
-- disable_result_log
SHOW TABLE STATUS LIKE 'bug53046_1';
-- enable_result_log
UPDATE bug53046_1 SET c1 = c1 - 1;
DELETE FROM bug53046_1;
INSERT INTO bug53046_1 VALUES (1);
INSERT INTO bug53046_2 VALUES (1);
TRUNCATE TABLE bug53046_2;
DROP TABLE bug53046_2;
DROP TABLE bug53046_1;
...@@ -3633,8 +3633,6 @@ btr_estimate_number_of_different_key_vals( ...@@ -3633,8 +3633,6 @@ btr_estimate_number_of_different_key_vals(
also the pages used for external storage of fields (those pages are also the pages used for external storage of fields (those pages are
included in index->stat_n_leaf_pages) */ included in index->stat_n_leaf_pages) */
dict_index_stat_mutex_enter(index);
for (j = 0; j <= n_cols; j++) { for (j = 0; j <= n_cols; j++) {
index->stat_n_diff_key_vals[j] index->stat_n_diff_key_vals[j]
= ((n_diff[j] = ((n_diff[j]
...@@ -3664,8 +3662,6 @@ btr_estimate_number_of_different_key_vals( ...@@ -3664,8 +3662,6 @@ btr_estimate_number_of_different_key_vals(
index->stat_n_diff_key_vals[j] += add_on; index->stat_n_diff_key_vals[j] += add_on;
} }
dict_index_stat_mutex_exit(index);
mem_free(n_diff); mem_free(n_diff);
if (UNIV_LIKELY_NULL(heap)) { if (UNIV_LIKELY_NULL(heap)) {
mem_heap_free(heap); mem_heap_free(heap);
......
...@@ -91,9 +91,18 @@ UNIV_INTERN mysql_pfs_key_t dict_foreign_err_mutex_key; ...@@ -91,9 +91,18 @@ UNIV_INTERN mysql_pfs_key_t dict_foreign_err_mutex_key;
/** Identifies generated InnoDB foreign key names */ /** Identifies generated InnoDB foreign key names */
static char dict_ibfk[] = "_ibfk_"; static char dict_ibfk[] = "_ibfk_";
/** array of mutexes protecting dict_index_t::stat_n_diff_key_vals[] */ /** array of rw locks protecting
#define DICT_INDEX_STAT_MUTEX_SIZE 32 dict_table_t::stat_initialized
mutex_t dict_index_stat_mutex[DICT_INDEX_STAT_MUTEX_SIZE]; dict_table_t::stat_n_rows (*)
dict_table_t::stat_clustered_index_size
dict_table_t::stat_sum_of_other_index_sizes
dict_table_t::stat_modified_counter (*)
dict_table_t::indexes*::stat_n_diff_key_vals[]
dict_table_t::indexes*::stat_index_size
dict_table_t::indexes*::stat_n_leaf_pages
(*) those are not always protected for performance reasons */
#define DICT_TABLE_STATS_LATCHES_SIZE 64
static rw_lock_t dict_table_stats_latches[DICT_TABLE_STATS_LATCHES_SIZE];
/*******************************************************************//** /*******************************************************************//**
Tries to find column names for the index and sets the col field of the Tries to find column names for the index and sets the col field of the
...@@ -254,43 +263,65 @@ dict_mutex_exit_for_mysql(void) ...@@ -254,43 +263,65 @@ dict_mutex_exit_for_mysql(void)
mutex_exit(&(dict_sys->mutex)); mutex_exit(&(dict_sys->mutex));
} }
/** Get the mutex that protects index->stat_n_diff_key_vals[] */ /** Get the latch that protects the stats of a given table */
#define GET_INDEX_STAT_MUTEX(index) \ #define GET_TABLE_STATS_LATCH(table) \
(&dict_index_stat_mutex[ut_fold_ull(index->id) \ (&dict_table_stats_latches[ut_fold_ull(table->id) \
% DICT_INDEX_STAT_MUTEX_SIZE]) % DICT_TABLE_STATS_LATCHES_SIZE])
/**********************************************************************//** /**********************************************************************//**
Lock the appropriate mutex to protect index->stat_n_diff_key_vals[]. Lock the appropriate latch to protect a given table's statistics.
index->id is used to pick the right mutex and it should not change table->id is used to pick the corresponding latch from a global array of
before dict_index_stat_mutex_exit() is called on this index. */ latches. */
UNIV_INTERN UNIV_INTERN
void void
dict_index_stat_mutex_enter( dict_table_stats_lock(
/*========================*/ /*==================*/
const dict_index_t* index) /*!< in: index */ const dict_table_t* table, /*!< in: table */
ulint latch_mode) /*!< in: RW_S_LATCH or
RW_X_LATCH */
{ {
ut_ad(index != NULL); ut_ad(table != NULL);
ut_ad(index->magic_n == DICT_INDEX_MAGIC_N); ut_ad(table->magic_n == DICT_TABLE_MAGIC_N);
ut_ad(index->cached);
ut_ad(!index->to_be_dropped);
mutex_enter(GET_INDEX_STAT_MUTEX(index)); switch (latch_mode) {
case RW_S_LATCH:
rw_lock_s_lock(GET_TABLE_STATS_LATCH(table));
break;
case RW_X_LATCH:
rw_lock_x_lock(GET_TABLE_STATS_LATCH(table));
break;
case RW_NO_LATCH:
/* fall through */
default:
ut_error;
}
} }
/**********************************************************************//** /**********************************************************************//**
Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */ Unlock the latch that has been locked by dict_table_stats_lock() */
UNIV_INTERN UNIV_INTERN
void void
dict_index_stat_mutex_exit( dict_table_stats_unlock(
/*=======================*/ /*====================*/
const dict_index_t* index) /*!< in: index */ const dict_table_t* table, /*!< in: table */
ulint latch_mode) /*!< in: RW_S_LATCH or
RW_X_LATCH */
{ {
ut_ad(index != NULL); ut_ad(table != NULL);
ut_ad(index->magic_n == DICT_INDEX_MAGIC_N); ut_ad(table->magic_n == DICT_TABLE_MAGIC_N);
ut_ad(index->cached);
ut_ad(!index->to_be_dropped);
mutex_exit(GET_INDEX_STAT_MUTEX(index)); switch (latch_mode) {
case RW_S_LATCH:
rw_lock_s_unlock(GET_TABLE_STATS_LATCH(table));
break;
case RW_X_LATCH:
rw_lock_x_unlock(GET_TABLE_STATS_LATCH(table));
break;
case RW_NO_LATCH:
/* fall through */
default:
ut_error;
}
} }
/********************************************************************//** /********************************************************************//**
...@@ -682,9 +713,9 @@ dict_init(void) ...@@ -682,9 +713,9 @@ dict_init(void)
mutex_create(dict_foreign_err_mutex_key, mutex_create(dict_foreign_err_mutex_key,
&dict_foreign_err_mutex, SYNC_ANY_LATCH); &dict_foreign_err_mutex, SYNC_ANY_LATCH);
for (i = 0; i < DICT_INDEX_STAT_MUTEX_SIZE; i++) { for (i = 0; i < DICT_TABLE_STATS_LATCHES_SIZE; i++) {
mutex_create(PFS_NOT_INSTRUMENTED, rw_lock_create(PFS_NOT_INSTRUMENTED,
&dict_index_stat_mutex[i], SYNC_INDEX_TREE); &dict_table_stats_latches[i], SYNC_INDEX_TREE);
} }
} }
...@@ -715,12 +746,11 @@ dict_table_get( ...@@ -715,12 +746,11 @@ dict_table_get(
mutex_exit(&(dict_sys->mutex)); mutex_exit(&(dict_sys->mutex));
if (table != NULL) { if (table != NULL) {
if (!table->stat_initialized) { /* If table->ibd_file_missing == TRUE, this will
/* If table->ibd_file_missing == TRUE, this will print an error message and return without doing
print an error message and return without doing anything. */
anything. */ dict_update_statistics(table, TRUE /* only update stats
dict_update_statistics(table); if they have not been initialized */);
}
} }
return(table); return(table);
...@@ -4201,6 +4231,10 @@ void ...@@ -4201,6 +4231,10 @@ void
dict_update_statistics_low( dict_update_statistics_low(
/*=======================*/ /*=======================*/
dict_table_t* table, /*!< in/out: table */ dict_table_t* table, /*!< in/out: table */
ibool only_calc_if_missing_stats,/*!< in: only
update/recalc the stats if they have
not been initialized yet, otherwise
do nothing */
ibool has_dict_mutex __attribute__((unused))) ibool has_dict_mutex __attribute__((unused)))
/*!< in: TRUE if the caller has the /*!< in: TRUE if the caller has the
dictionary mutex */ dictionary mutex */
...@@ -4231,6 +4265,12 @@ dict_update_statistics_low( ...@@ -4231,6 +4265,12 @@ dict_update_statistics_low(
return; return;
} }
dict_table_stats_lock(table, RW_X_LATCH);
if (only_calc_if_missing_stats && table->stat_initialized) {
dict_table_stats_unlock(table, RW_X_LATCH);
return;
}
do { do {
if (UNIV_LIKELY if (UNIV_LIKELY
...@@ -4276,13 +4316,9 @@ dict_update_statistics_low( ...@@ -4276,13 +4316,9 @@ dict_update_statistics_low(
index = dict_table_get_first_index(table); index = dict_table_get_first_index(table);
dict_index_stat_mutex_enter(index);
table->stat_n_rows = index->stat_n_diff_key_vals[ table->stat_n_rows = index->stat_n_diff_key_vals[
dict_index_get_n_unique(index)]; dict_index_get_n_unique(index)];
dict_index_stat_mutex_exit(index);
table->stat_clustered_index_size = index->stat_index_size; table->stat_clustered_index_size = index->stat_index_size;
table->stat_sum_of_other_index_sizes = sum_of_index_sizes table->stat_sum_of_other_index_sizes = sum_of_index_sizes
...@@ -4291,6 +4327,8 @@ dict_update_statistics_low( ...@@ -4291,6 +4327,8 @@ dict_update_statistics_low(
table->stat_initialized = TRUE; table->stat_initialized = TRUE;
table->stat_modified_counter = 0; table->stat_modified_counter = 0;
dict_table_stats_unlock(table, RW_X_LATCH);
} }
/*********************************************************************//** /*********************************************************************//**
...@@ -4300,9 +4338,13 @@ UNIV_INTERN ...@@ -4300,9 +4338,13 @@ UNIV_INTERN
void void
dict_update_statistics( dict_update_statistics(
/*===================*/ /*===================*/
dict_table_t* table) /*!< in/out: table */ dict_table_t* table, /*!< in/out: table */
ibool only_calc_if_missing_stats)/*!< in: only
update/recalc the stats if they have
not been initialized yet, otherwise
do nothing */
{ {
dict_update_statistics_low(table, FALSE); dict_update_statistics_low(table, only_calc_if_missing_stats, FALSE);
} }
/**********************************************************************//** /**********************************************************************//**
...@@ -4382,7 +4424,11 @@ dict_table_print_low( ...@@ -4382,7 +4424,11 @@ dict_table_print_low(
ut_ad(mutex_own(&(dict_sys->mutex))); ut_ad(mutex_own(&(dict_sys->mutex)));
dict_update_statistics_low(table, TRUE); dict_update_statistics_low(table,
FALSE /* update even if initialized */,
TRUE /* we have the dict mutex */);
dict_table_stats_lock(table, RW_S_LATCH);
fprintf(stderr, fprintf(stderr,
"--------------------------------------\n" "--------------------------------------\n"
...@@ -4410,6 +4456,8 @@ dict_table_print_low( ...@@ -4410,6 +4456,8 @@ dict_table_print_low(
index = UT_LIST_GET_NEXT(indexes, index); index = UT_LIST_GET_NEXT(indexes, index);
} }
dict_table_stats_unlock(table, RW_S_LATCH);
foreign = UT_LIST_GET_FIRST(table->foreign_list); foreign = UT_LIST_GET_FIRST(table->foreign_list);
while (foreign != NULL) { while (foreign != NULL) {
...@@ -4458,8 +4506,6 @@ dict_index_print_low( ...@@ -4458,8 +4506,6 @@ dict_index_print_low(
ut_ad(mutex_own(&(dict_sys->mutex))); ut_ad(mutex_own(&(dict_sys->mutex)));
dict_index_stat_mutex_enter(index);
if (index->n_user_defined_cols > 0) { if (index->n_user_defined_cols > 0) {
n_vals = index->stat_n_diff_key_vals[ n_vals = index->stat_n_diff_key_vals[
index->n_user_defined_cols]; index->n_user_defined_cols];
...@@ -4467,8 +4513,6 @@ dict_index_print_low( ...@@ -4467,8 +4513,6 @@ dict_index_print_low(
n_vals = index->stat_n_diff_key_vals[1]; n_vals = index->stat_n_diff_key_vals[1];
} }
dict_index_stat_mutex_exit(index);
fprintf(stderr, fprintf(stderr,
" INDEX: name %s, id %llu, fields %lu/%lu," " INDEX: name %s, id %llu, fields %lu/%lu,"
" uniq %lu, type %lu\n" " uniq %lu, type %lu\n"
...@@ -4955,8 +4999,8 @@ dict_close(void) ...@@ -4955,8 +4999,8 @@ dict_close(void)
mem_free(dict_sys); mem_free(dict_sys);
dict_sys = NULL; dict_sys = NULL;
for (i = 0; i < DICT_INDEX_STAT_MUTEX_SIZE; i++) { for (i = 0; i < DICT_TABLE_STATS_LATCHES_SIZE; i++) {
mutex_free(&dict_index_stat_mutex[i]); rw_lock_free(&dict_table_stats_latches[i]);
} }
} }
#endif /* !UNIV_HOTBACKUP */ #endif /* !UNIV_HOTBACKUP */
...@@ -346,7 +346,11 @@ dict_process_sys_tables_rec( ...@@ -346,7 +346,11 @@ dict_process_sys_tables_rec(
/* Update statistics if DICT_TABLE_UPDATE_STATS /* Update statistics if DICT_TABLE_UPDATE_STATS
is set */ is set */
dict_update_statistics_low(*table, TRUE); dict_update_statistics_low(*table,
FALSE /* update even if
initialized */,
TRUE /* we have the dict
mutex */);
} }
return(NULL); return(NULL);
......
...@@ -7534,6 +7534,7 @@ ha_innobase::estimate_rows_upper_bound(void) ...@@ -7534,6 +7534,7 @@ ha_innobase::estimate_rows_upper_bound(void)
dict_index_t* index; dict_index_t* index;
ulonglong estimate; ulonglong estimate;
ulonglong local_data_file_length; ulonglong local_data_file_length;
ulint stat_n_leaf_pages;
DBUG_ENTER("estimate_rows_upper_bound"); DBUG_ENTER("estimate_rows_upper_bound");
...@@ -7553,10 +7554,12 @@ ha_innobase::estimate_rows_upper_bound(void) ...@@ -7553,10 +7554,12 @@ ha_innobase::estimate_rows_upper_bound(void)
index = dict_table_get_first_index(prebuilt->table); index = dict_table_get_first_index(prebuilt->table);
ut_a(index->stat_n_leaf_pages > 0); stat_n_leaf_pages = index->stat_n_leaf_pages;
ut_a(stat_n_leaf_pages > 0);
local_data_file_length = local_data_file_length =
((ulonglong) index->stat_n_leaf_pages) * UNIV_PAGE_SIZE; ((ulonglong) stat_n_leaf_pages) * UNIV_PAGE_SIZE;
/* Calculate a minimum length for a clustered index record and from /* Calculate a minimum length for a clustered index record and from
...@@ -7752,7 +7755,9 @@ ha_innobase::info_low( ...@@ -7752,7 +7755,9 @@ ha_innobase::info_low(
prebuilt->trx->op_info = "updating table statistics"; prebuilt->trx->op_info = "updating table statistics";
dict_update_statistics(ib_table); dict_update_statistics(ib_table,
FALSE /* update even if stats
are initialized */);
prebuilt->trx->op_info = "returning various info to MySQL"; prebuilt->trx->op_info = "returning various info to MySQL";
} }
...@@ -7771,6 +7776,9 @@ ha_innobase::info_low( ...@@ -7771,6 +7776,9 @@ ha_innobase::info_low(
} }
if (flag & HA_STATUS_VARIABLE) { if (flag & HA_STATUS_VARIABLE) {
dict_table_stats_lock(ib_table, RW_S_LATCH);
n_rows = ib_table->stat_n_rows; n_rows = ib_table->stat_n_rows;
/* Because we do not protect stat_n_rows by any mutex in a /* Because we do not protect stat_n_rows by any mutex in a
...@@ -7820,6 +7828,8 @@ ha_innobase::info_low( ...@@ -7820,6 +7828,8 @@ ha_innobase::info_low(
ib_table->stat_sum_of_other_index_sizes) ib_table->stat_sum_of_other_index_sizes)
* UNIV_PAGE_SIZE; * UNIV_PAGE_SIZE;
dict_table_stats_unlock(ib_table, RW_S_LATCH);
/* Since fsp_get_available_space_in_free_extents() is /* Since fsp_get_available_space_in_free_extents() is
acquiring latches inside InnoDB, we do not call it if we acquiring latches inside InnoDB, we do not call it if we
are asked by MySQL to avoid locking. Another reason to are asked by MySQL to avoid locking. Another reason to
...@@ -7896,6 +7906,8 @@ ha_innobase::info_low( ...@@ -7896,6 +7906,8 @@ ha_innobase::info_low(
table->s->keys); table->s->keys);
} }
dict_table_stats_lock(ib_table, RW_S_LATCH);
for (i = 0; i < table->s->keys; i++) { for (i = 0; i < table->s->keys; i++) {
ulong j; ulong j;
/* We could get index quickly through internal /* We could get index quickly through internal
...@@ -7933,8 +7945,6 @@ ha_innobase::info_low( ...@@ -7933,8 +7945,6 @@ ha_innobase::info_low(
break; break;
} }
dict_index_stat_mutex_enter(index);
if (index->stat_n_diff_key_vals[j + 1] == 0) { if (index->stat_n_diff_key_vals[j + 1] == 0) {
rec_per_key = stats.records; rec_per_key = stats.records;
...@@ -7943,8 +7953,6 @@ ha_innobase::info_low( ...@@ -7943,8 +7953,6 @@ ha_innobase::info_low(
index->stat_n_diff_key_vals[j + 1]); index->stat_n_diff_key_vals[j + 1]);
} }
dict_index_stat_mutex_exit(index);
/* Since MySQL seems to favor table scans /* Since MySQL seems to favor table scans
too much over index searches, we pretend too much over index searches, we pretend
index selectivity is 2 times better than index selectivity is 2 times better than
...@@ -7961,6 +7969,8 @@ ha_innobase::info_low( ...@@ -7961,6 +7969,8 @@ ha_innobase::info_low(
(ulong) rec_per_key; (ulong) rec_per_key;
} }
} }
dict_table_stats_unlock(ib_table, RW_S_LATCH);
} }
if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) { if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) {
......
...@@ -1083,6 +1083,10 @@ void ...@@ -1083,6 +1083,10 @@ void
dict_update_statistics_low( dict_update_statistics_low(
/*=======================*/ /*=======================*/
dict_table_t* table, /*!< in/out: table */ dict_table_t* table, /*!< in/out: table */
ibool only_calc_if_missing_stats,/*!< in: only
update/recalc the stats if they have
not been initialized yet, otherwise
do nothing */
ibool has_dict_mutex);/*!< in: TRUE if the caller has the ibool has_dict_mutex);/*!< in: TRUE if the caller has the
dictionary mutex */ dictionary mutex */
/*********************************************************************//** /*********************************************************************//**
...@@ -1092,7 +1096,11 @@ UNIV_INTERN ...@@ -1092,7 +1096,11 @@ UNIV_INTERN
void void
dict_update_statistics( dict_update_statistics(
/*===================*/ /*===================*/
dict_table_t* table); /*!< in/out: table */ dict_table_t* table, /*!< in/out: table */
ibool only_calc_if_missing_stats);/*!< in: only
update/recalc the stats if they have
not been initialized yet, otherwise
do nothing */
/********************************************************************//** /********************************************************************//**
Reserves the dictionary system mutex for MySQL. */ Reserves the dictionary system mutex for MySQL. */
UNIV_INTERN UNIV_INTERN
...@@ -1106,21 +1114,25 @@ void ...@@ -1106,21 +1114,25 @@ void
dict_mutex_exit_for_mysql(void); dict_mutex_exit_for_mysql(void);
/*===========================*/ /*===========================*/
/**********************************************************************//** /**********************************************************************//**
Lock the appropriate mutex to protect index->stat_n_diff_key_vals[]. Lock the appropriate latch to protect a given table's statistics.
index->id is used to pick the right mutex and it should not change table->id is used to pick the corresponding latch from a global array of
before dict_index_stat_mutex_exit() is called on this index. */ latches. */
UNIV_INTERN UNIV_INTERN
void void
dict_index_stat_mutex_enter( dict_table_stats_lock(
/*========================*/ /*==================*/
const dict_index_t* index); /*!< in: index */ const dict_table_t* table, /*!< in: table */
ulint latch_mode); /*!< in: RW_S_LATCH or
RW_X_LATCH */
/**********************************************************************//** /**********************************************************************//**
Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */ Unlock the latch that has been locked by dict_table_stats_lock() */
UNIV_INTERN UNIV_INTERN
void void
dict_index_stat_mutex_exit( dict_table_stats_unlock(
/*=======================*/ /*====================*/
const dict_index_t* index); /*!< in: index */ const dict_table_t* table, /*!< in: table */
ulint latch_mode); /*!< in: RW_S_LATCH or
RW_X_LATCH */
/********************************************************************//** /********************************************************************//**
Checks if the database name in two table names is the same. Checks if the database name in two table names is the same.
@return TRUE if same db name */ @return TRUE if same db name */
......
...@@ -930,7 +930,8 @@ row_update_statistics_if_needed( ...@@ -930,7 +930,8 @@ row_update_statistics_if_needed(
if (counter > 2000000000 if (counter > 2000000000
|| ((ib_int64_t)counter > 16 + table->stat_n_rows / 16)) { || ((ib_int64_t)counter > 16 + table->stat_n_rows / 16)) {
dict_update_statistics(table); dict_update_statistics(table, FALSE /* update even if stats
are initialized */);
} }
} }
...@@ -3020,7 +3021,8 @@ row_truncate_table_for_mysql( ...@@ -3020,7 +3021,8 @@ row_truncate_table_for_mysql(
dict_table_autoinc_lock(table); dict_table_autoinc_lock(table);
dict_table_autoinc_initialize(table, 1); dict_table_autoinc_initialize(table, 1);
dict_table_autoinc_unlock(table); dict_table_autoinc_unlock(table);
dict_update_statistics(table); dict_update_statistics(table, FALSE /* update even if stats are
initialized */);
trx_commit_for_mysql(trx); trx_commit_for_mysql(trx);
......
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