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alter_table_pk_no_sort.inc	10.86 KB	-rw-r--r--
check_pfs_mem_other_is_zero.in...	623 B	-rw-r--r--
checksum_not_strict.inc	151 B	-rw-r--r--
create_options_invalid.inc	1.29 KB	-rw-r--r--
create_workload_itt.inc	13.86 KB	-rw-r--r--
default_row_format_alter.inc	3.25 KB	-rw-r--r--
default_row_format_create.inc	995 B	-rw-r--r--
default_row_format_large.inc	1.32 KB	-rw-r--r--
default_row_format_show.inc	119 B	-rw-r--r--
default_row_format_tablespace....	3.75 KB	-rw-r--r--
drop_workload_itt.inc	150 B	-rw-r--r--
import.inc	1014 B	-rw-r--r--
innodb-multiple-tablespaces-cl...	193 B	-rw-r--r--
innodb_bulk_create_index.inc	4.1 KB	-rw-r--r--
innodb_bulk_create_index_debug...	4.26 KB	-rw-r--r--
innodb_dict.inc	371 B	-rw-r--r--
innodb_import.inc	28.86 KB	-rw-r--r--
innodb_isolation_selects.inc	1.21 KB	-rw-r--r--
innodb_merge_threshold_delete....	4.19 KB	-rw-r--r--
innodb_merge_threshold_seconda...	6.65 KB	-rw-r--r--
innodb_merge_threshold_update....	3.47 KB	-rw-r--r--
innodb_stats.inc	665 B	-rw-r--r--
innodb_stats_table_flag.inc	2.33 KB	-rw-r--r--
innodb_stats_table_flag_analyz...	508 B	-rw-r--r--
innodb_undo_logs_action.inc	861 B	-rw-r--r--
innodb_v_large_col.inc	1.47 KB	-rw-r--r--
innodb_wl6501_crash.inc	12.68 KB	-rw-r--r--
innodb_wl6501_crash_temp.inc	3.25 KB	-rw-r--r--
log_file_cleanup.inc	748 B	-rw-r--r--
query_workload_itt.inc	7.44 KB	-rw-r--r--
show_i_s_tables.inc	655 B	-rw-r--r--
show_i_s_tablespaces.inc	1.57 KB	-rw-r--r--
tablespace_filenames.inc	3.22 KB	-rw-r--r--
tablespace_portability.inc	16.79 KB	-rw-r--r--
wl5522_oom.inc	211 B	-rw-r--r--

Code Editor : innodb_merge_threshold_update.inc

#
# Test to cause merge of the pages (by updating to smaller)
# test/tab1 should be created already with innodb_file_per_table=ON
# The definition is intended to be based on
# "create table tab1 (a bigint primary key, b varchar(2048)) engine=InnoDB;"
#

--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_innodb_16k.inc

# turn on flags
--disable_query_log
SET GLOBAL innodb_monitor_enable=index_page_merge_attempts;
SET GLOBAL innodb_monitor_reset=index_page_merge_attempts;
SET GLOBAL innodb_monitor_enable=index_page_merge_successful;
SET GLOBAL innodb_monitor_reset=index_page_merge_successful;
--enable_query_log

--echo # check MERGE_THRESHOLD
select t.NAME as TABLE_NAME, i.NAME as INDEX_NAME, i.MERGE_THRESHOLD
from INFORMATION_SCHEMA.INNODB_SYS_TABLES t, INFORMATION_SCHEMA.INNODB_SYS_INDEXES i
where t.TABLE_ID = i.TABLE_ID and t.NAME like 'test/tab1%';

insert into tab1 values (1, repeat('a',2048));
insert into tab1 values (2, repeat('a',2048));
insert into tab1 values (3, repeat('a',2048));
insert into tab1 values (8, repeat('a',2048));
insert into tab1 values (9, repeat('a',2048));
insert into tab1 values (10, repeat('a',2048));
insert into tab1 values (11, repeat('a',2048));
insert into tab1 values (12, repeat('a',2048));
insert into tab1 values (4, repeat('a',2048));
insert into tab1 values (5, repeat('a',2048));
insert into tab1 values (6, repeat('a',2048));
insert into tab1 values (7, repeat('a',2048));
insert into tab1 values (13, repeat('a',2048));
insert into tab1 values (14, repeat('a',2048));

# filled 2 leaf pages have been prepared
# | 1,..,7 | 8,..,14 |

select PAGE_NUMBER, NUMBER_RECORDS
from INFORMATION_SCHEMA.INNODB_SYS_TABLESPACES s1,
INFORMATION_SCHEMA.INNODB_BUFFER_PAGE s2
where s1.SPACE = s2.SPACE AND NAME like 'test/tab1%'
and PAGE_TYPE = "INDEX" order by PAGE_NUMBER, NUMBER_RECORDS;

update tab1 set b='' where a = 12;
update tab1 set b='' where a = 13;
update tab1 set b='' where a = 14;
update tab1 set b='' where a = 5;
update tab1 set b='' where a = 6;
update tab1 set b='' where a = 7;

# not merged yet
# | 1,2,3,4 | 8,9,10,11 |

--echo # check page merge happens (nothing is expected)
SELECT name,count_reset FROM information_schema.innodb_metrics
WHERE name like 'index_page_merge_%';

update tab1 set b='' where a = 11;

--echo # check page merge happens (MERGE_THRESHOLD=50 causes merge here)
SELECT name,count_reset FROM information_schema.innodb_metrics
WHERE name like 'index_page_merge_%';

update tab1 set b='' where a = 10;

--echo # check page merge happens (MERGE_THRESHOLD=35 causes merge here)
SELECT name,count_reset FROM information_schema.innodb_metrics
WHERE name like 'index_page_merge_%';

update tab1 set b='' where a = 9;

--echo # check page merge happens (MERGE_THRESHOLD=25 causes merge here)
SELECT name,count_reset FROM information_schema.innodb_metrics
WHERE name like 'index_page_merge_%';

--disable_query_log
# Reset flags
SET GLOBAL innodb_monitor_disable=index_page_merge_attempts;
SET GLOBAL innodb_monitor_disable=index_page_merge_successful;

--disable_warnings
set global innodb_monitor_enable = default;
set global innodb_monitor_disable = default;
set global innodb_monitor_reset = default;
set global innodb_monitor_reset_all = default;
--enable_warnings
--enable_query_log

${this.title}

Code Editor : innodb_merge_threshold_update.inc