polardbxengine/mysql-test/suite/innodb/t/virtual_debug.test

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--source include/have_debug_sync.inc
--source include/have_debug.inc
--source include/count_sessions.inc
--source include/have_innodb_max_16k.inc
CREATE TABLE `t` (
`a` VARCHAR(100),
`b` VARCHAR(100),
`c` VARCHAR(200) GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL,
`h` VARCHAR(10) DEFAULT NULL,
`i` int
) ENGINE=InnoDB;
INSERT INTO t VALUES (REPEAT('g', 100), REPEAT('x', 10), DEFAULT, "kk", 1);
INSERT INTO t VALUES (REPEAT('a', 100), REPEAT('b', 100), DEFAULT, "mm", 2);
CREATE INDEX idx ON t(c(100));
SET session debug="+d,ib_alter_add_virtual_fail";
--error ER_WRONG_KEY_COLUMN
ALTER TABLE t ADD COLUMN x VARCHAR(200) GENERATED ALWAYS AS (a) VIRTUAL, ADD INDEX(h),
ALGORITHM = INPLACE;
--error ER_WRONG_KEY_COLUMN
ALTER TABLE t DROP COLUMN c, ADD INDEX(h), ALGORITHM = INPLACE;
SET session debug="-d,ib_alter_add_virtual_fail";
DROP TABLE t;
#online test
CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));
INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');
INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (null, null, DEFAULT, "mx");
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send CREATE INDEX idx ON t(c);
connect (con1,localhost,root,,);
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
update t set a=0 where a = 11;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SELECT c FROM t;
SHOW CREATE TABLE t;
SELECT * FROM t;
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send ALTER TABLE t ADD COLUMN x INT;
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
start transaction;
update t set a=1 where a = 0;
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SELECT c FROM t;
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send ALTER TABLE t ADD COLUMN x2 INT;
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
start transaction;
DELETE FROM t WHERE a = 0;
ROLLBACK;
DELETE FROM t WHERE a = 0;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SELECT c FROM t;
disconnect con1;
DROP TABLE t;
SET DEBUG_SYNC = 'RESET';
# Test add virtual column and add index at the same time
# introduce some error
CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));
INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');
INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (null, null, DEFAULT, 'mm');
CREATE INDEX idx_1 on t(c);
SET SESSION debug="+d,create_index_fail";
--enable_info
--error ER_DUP_ENTRY
ALTER TABLE t ADD COLUMN x INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (x);
SET SESSION debug="-d,create_index_fail";
--disable_info
SHOW CREATE TABLE t;
SELECT c FROM t;
DROP TABLE t;
--echo #
--echo # Bug#22018532 ASSERTION WHEN ONLINE REAPPLY REBUILD LOG ON
--echo # MULTIPLE INDEXED VIRTUAL COLUMNS
--echo #
create table t (
a int as (1) virtual,
b int,
c int as (1) virtual,
unique(b),
unique(c),
key(a)
) engine=innodb;
insert ignore into t values();
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send optimize table t
connect (con1,localhost,root,,);
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
insert ignore into t values();
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
--echo /* connection default */ optimize table t;
reap;
SELECT c FROM t;
SHOW CREATE TABLE t;
SELECT * FROM t;
DROP TABLE t;
# Do another test without duplicate error
CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));
INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');
INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (null, null, DEFAULT, 'mm');
CREATE INDEX idx ON t(c);
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_rebuild WAIT_FOR go_ahead';
--send optimize table t
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_rebuild';
INSERT INTO t VALUES (48, 2, DEFAULT, 'xx');
INSERT INTO t VALUES (68, 3, DEFAULT, 'sx');
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
--echo /* connection default */ optimize table t;
reap;
SELECT c FROM t;
disconnect con1;
DROP TABLE t;
--echo #
--echo # Bug#22140944 WL#8149: ADD TEST FOR THE ROW0LOG.CC FIX THAT
--echo # WAS UNRELATED TO Bug#21894654
--echo #
CREATE TABLE t1 ( id INT ,a VARCHAR(20), b VARCHAR(20) ,c VARCHAR(40)
GENERATED ALWAYS AS (CONCAT(a,b)),key(c));
INSERT INTO t1 (id,a,b) VALUES (10,'aditya','hello');
connect (con1,localhost,root);
connection con1;
SET DEBUG_SYNC= 'row_merge_after_scan SIGNAL opened WAIT_FOR go_ddl';
send ALTER TABLE t1 ADD CONSTRAINT pk1 PRIMARY KEY (id);
connection default;
SET DEBUG_SYNC= 'now WAIT_FOR opened';
UPDATE t1 SET a = 'fg', id = 20 WHERE id = 10;
SET DEBUG_SYNC= 'now SIGNAL go_ddl';
connection con1;
reap;
disconnect con1;
connection default;
SELECT * from t1;
DROP TABLE t1;
--echo #
--echo # Bug#22951879 - ASSERTS RELATED TO ONLINE DDL AND GCOL
--echo #
# Create a table with 2 virtual column, one (vbidxcol) is indexed and
# the other one (vbcol) is not
create table ibstd_14 (a int not null, d int not null, b varchar(198) not null, c char(181), vadcol int as (a+length(d)) stored, vbcol char(2) as (substr(b,2,2)) virtual, vbidxcol char(3) as (substr(b,1,3)) virtual , index(d), index(a), index(vbidxcol), index(a,vbidxcol), index(vbidxcol,d), unique key (b(10), a, d), index(c(99), b(31)), index(b(5), c(10), a) , index(a,d)) engine=InnoDB stats_persistent=1 row_format=dynamic charset latin1;
# Do an alter table rebuild table and also create a new index on this
# non-indexed virtual column
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send alter table ibstd_14 row_format=compressed key_block_size=4,add key kn3 (d,c,vbcol,b);
# Do a concurrent insert, and make sure this newly indexed virtual column
# is also logged
connect (con1,localhost,root);
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
insert into ibstd_14 (a,d,b,c, vbidxcol, vbcol) values ('118','6',repeat('oacolaarlruoacuroauurloraarucoooarcooauoolacalllaulrruarrrucruuooclacuoouccarrcoocloccorrrrarourcooalloocooccouruolaorlcaocualolc','1'),repeat('lolrrlalcocroraaulauclaaucolcorcuooaolruaooooluooooouaoorlarucorullalcrrloccououaooaorluorraclrcooouuolocoaolcocaaculruoocucoocoooauuolarcoraraocaoolulolarru','1'),default,default);
insert into ibstd_14 (a,d,b,c, vbidxcol, vbcol) values ('118','6', 'aaaa', 'lll', default, default);
# Also do an concurrent update, make sure this is performed
update ibstd_14 set b='11111' where b='aaaa';
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
select * from ibstd_14;
# This will use the newly added "kn3" index, to check materialized vbcol
# after log reapply
select d,c,vbcol,b from ibstd_14;
# check the value is inserted into the index
select vbcol from ibstd_14;
drop table ibstd_14;
--echo #
--echo # Bug#26375771 INNODB: ASSERTION FAILURE: MACH0DATA.IC:308:VAL > 0X7F
--echo #
create table ibstd_07 (a int not null, d int not null, b blob not null, c text, vadcol int as (a+length(d)) stored, vbcol char(2) as (substr(b,2,2)) virtual, vbidxcol char(3) as (substr(b,1,3)) virtual , index(d desc), index(a desc), index(vbidxcol desc), index(vbidxcol desc,d asc), unique key (b(101) desc, a asc, d ), index(c(255) desc, b(255) asc), index(b(5) desc, c(10) asc, a ) ) engine=InnoDB default charset=latin1 row_format=redundant;
insert into ibstd_07 values (2, 2, repeat('rocalrulcrcaurcuccoolrouuocacaooaucauualcucuoucucclolcllloocuarcoorlaccarocouuaoorcolloucraoaaooc','281'),repeat('ouolrculuouocououooalcoraooaulouuacrolrocooraoaooooolaccralacalooolalocoaacoorarorcurccarocucla','317'), default, default, default);
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send alter table ibstd_07 add primary key (b(11) desc,a asc, d );
# Do a concurrent update
connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
update ibstd_07 set c=repeat('0.366710324443464crllooolarlollorlulololucrluacoorrrluroluroocouauacacruloulcurlraorcrclrolcocrrcoccolourrooclrcocruruauallo','70');
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
reap;
SELECT * FROM ibstd_07;
DROP TABLE ibstd_07;
--echo #
--echo # Bug#22018745 CORRUPTION IN ONLINE TABLE REBUILD
--echo # (ROW_FORMAT=REDUNDANT, INDEXED VIRTUAL COLUMN)
--echo #
CREATE TABLE t (
b char(5) PRIMARY KEY,
v char(3) GENERATED ALWAYS AS (substr(b,1,3)) VIRTUAL, KEY(v)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT;
connection con1;
SET DEBUG_SYNC='row_log_table_apply1_before SIGNAL prepared WAIT_FOR apply';
--send OPTIMIZE TABLE t
connection default;
SET DEBUG_SYNC='now WAIT_FOR prepared';
INSERT INTO t SET b='fubar';
BEGIN;
DELETE FROM t;
ROLLBACK;
SET DEBUG_SYNC='now SIGNAL apply';
connection con1;
reap;
connection default;
CHECK TABLE t;
SELECT * FROM t;
DROP TABLE t;
disconnect con1;
SET DEBUG_SYNC = 'RESET';
--source include/wait_until_count_sessions.inc
--echo #
--echo # Bug#24658707 ASSERT: BUF0BUF.CC:2469:BUF_BLOCK_GET_STATE(BLOCK)
--echo # == BUF_BLOCK_FILE_PAGE#
--echo #
--connect(con1,localhost,root)
--connect(con2,localhost,root)
CREATE TABLE t1 (
col1 int(11) NOT NULL,
col2 int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
--connection con1
SET DEBUG_SYNC='purge_wait_for_btr_search_latch WAIT_FOR go';
--send ALTER TABLE t1 ADD COLUMN col3 INT GENERATED ALWAYS AS (col1 % col2) VIRTUAL, algorithm=inplace;
--connection con2
# Allow purge to wait for btr_search_latch
--sleep 10
SET DEBUG_SYNC = 'now signal go';
--connection con1
--reap
SET DEBUG_SYNC = 'RESET';
DROP TABLE t1;
--connection default
--disconnect con1
--disconnect con2
--echo #
--echo # Bug#26330279 - ASSERT ON ROW_PURGE_REMOVE_SEC_IF_POSS_LEAF| INNOBASE/ROW/ROW0PURGE.CC
--echo #
SET GLOBAL innodb_purge_stop_now=ON;
CREATE TABLE t1 (col1 INT,
col2 VARCHAR(100),
col3 VARCHAR(80) GENERATED ALWAYS AS (SUBSTR(col2,1,70)),
PRIMARY KEY (col1), UNIQUE KEY uidx(col3(10))) ENGINE = InnoDB;
INSERT INTO t1(col1, col2) VALUES(1, CONCAT(1, REPEAT('z',90)));
REPLACE INTO t1(col1, col2) SELECT col1, col2 FROM t1;
SET GLOBAL innodb_purge_run_now=ON;
--source include/wait_innodb_all_purged.inc
DROP TABLE t1;
--echo #
--echo # BUG#27319084 - INDEX CORRUPT: INNODB: FIELD 0 LEN IS NNN, SHOULD BE NNN; RECORD
--echo #
CREATE TABLE t1(a INT NOT NULL, d INT NOT NULL, b VARCHAR(198) NOT NULL, c CHAR(84), vbcol CHAR(2) AS (substr(b, 2, 2)) VIRTUAL, vbidxcol CHAR(3) AS (substr(b, 1, 3)) VIRTUAL, INDEX(vbidxcol ASC)) ROW_FORMAT = DYNAMIC;
INSERT INTO t1(a, d, b, c) VALUES(200, 300, '1.3.1415926535', 'hello world');
connect (conn1, localhost, root,,);
connection default;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL altered WAIT_FOR dmls_done';
--send ALTER TABLE t1 ROW_FORMAT = REDUNDANT
connection conn1;
SET DEBUG_SYNC = 'now WAIT_FOR altered';
INSERT INTO t1(a, d, b, c) VALUES(201, 300, '3.1415926535', 'hello world');
UPDATE t1 SET b = '6.1516179' WHERE a = 200;
SET DEBUG_SYNC = 'now SIGNAL dmls_done';
disconnect conn1;
connection default;
reap;
SET DEBUG_SYNC = 'reset';
CHECK TABLE t1;
SELECT * FROM t1;
DROP TABLE t1;
CREATE TABLE t1(a INT NOT NULL, d INT NOT NULL, b VARCHAR(198) NOT NULL, c CHAR(84), vbcol CHAR(2) AS (substr(b, 2, 2)) VIRTUAL, vbidxcol CHAR(3) AS (substr(b, 1, 3)) VIRTUAL, INDEX(vbidxcol ASC)) ROW_FORMAT = REDUNDANT;
INSERT INTO t1(a, d, b, c) VALUES(200, 300, '1.3.1415926535', 'hello world');
connect (conn1, localhost, root,,);
connection default;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL altered WAIT_FOR dmls_done';
--send ALTER TABLE t1 ROW_FORMAT = DYNAMIC
connection conn1;
SET DEBUG_SYNC = 'now WAIT_FOR altered';
INSERT INTO t1(a, d, b, c) VALUES(201, 300, '3.1415926535', 'hello world');
UPDATE t1 SET b = '6.1516179' WHERE a = 200;
SET DEBUG_SYNC = 'now SIGNAL dmls_done';
disconnect conn1;
connection default;
reap;
SET DEBUG_SYNC = 'reset';
CHECK TABLE t1;
SELECT * FROM t1;
DROP TABLE t1;
--echo #
--echo # BUG#28448853 - ASSERTION FAILURE: ROW0LOG.CC:2153 ROW_LOG_TABLE_APPLY (THR=0X7F7C7C050030
--echo #
CREATE TABLE t1(a INT NOT NULL, d INT NOT NULL, b VARCHAR(198) NOT NULL, c CHAR(84), vbcol CHAR(2) AS (substr(b, 2, 2)) VIRTUAL);
INSERT INTO t1(a, d, b, c) VALUES(200, 300, '1.3.1415926535', 'hello world');
SELECT * FROM t1;
connect (conn1, localhost, root,,);
connection default;
SET DEBUG_SYNC = 'inplace_after_index_build SIGNAL altered WAIT_FOR dmls_done';
--send ALTER TABLE t1 ROW_FORMAT = COMPRESSED;
connection conn1;
SET DEBUG_SYNC = 'now WAIT_FOR altered';
START TRANSACTION;
UPDATE t1 SET b = '6.1516179' WHERE a = 200;
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dmls_done';
disconnect conn1;
connection default;
reap;
SET DEBUG_SYNC = 'reset';
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;
DROP TABLE t1;
--echo #
--echo # Bug#28825718 - ASSERTION FAILURE: TRX0REC.CC:NNN:N_IDX > 0 WHILE DOING REPLACE/INSERT
--echo #
CREATE TABLE t1(a INT PRIMARY KEY, b INT, c INT GENERATED ALWAYS AS(b+1) VIRTUAL) ENGINE=InnoDB;
INSERT INTO t1(a, b) VALUES(1, 1);
connect (con1,localhost,root,,);
connection con1;
SET DEBUG_SYNC = 'row_log_apply_after SIGNAL s1 WAIT_FOR s2';
SET lock_wait_timeout = 1;
--send ALTER TABLE t1 ADD UNIQUE INDEX(c, b)
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR s1';
SET DEBUG_SYNC = 'row_ins_sec_index_enter SIGNAL s2 WAIT_FOR s3';
--send INSERT INTO t1(a, b) VALUES(2, 2)
connection con1;
--echo /* con1 reap */ ALTER TABLE t1 ADD UNIQUE INDEX(c, b);
--error ER_LOCK_WAIT_TIMEOUT
reap;
SET DEBUG_SYNC ='now SIGNAL s3';
disconnect con1;
connection default;
reap;
ALTER TABLE t1 ADD KEY(b);
INSERT INTO t1(a, b) VALUES(3, 3);
SELECT * FROM t1;
CHECK TABLE t1;
DROP TABLE t1;
--echo #
--echo # Bug#28834208 ROW_LOG_TABLE_APPLY_UPDATE*INPLACE_ALTER_TABLE
--echo #
CREATE TABLE t1 (
pkey INT(11) PRIMARY KEY,
a VARCHAR(100),
v VARCHAR(100) GENERATED ALWAYS AS (SUBSTRING(a,2,2)) VIRTUAL,
c varchar(100),
UNIQUE KEY k (v)
);
INSERT INTO t1 ( pkey,a,c) VALUES (149,'bata','test');
SELECT pkey,a,v FROM t1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL index_built WAIT_FOR S2';
--send OPTIMIZE TABLE t1
connect (con1,localhost,root,,);
--echo # Connect to con1
--connection con1
SET DEBUG_SYNC = 'now WAIT_FOR index_built';
UPDATE t1 SET a='tata' WHERE pkey=149;
SET DEBUG_SYNC ='now signal S2';
SELECT pkey,a,v FROM t1;
disconnect con1;
--connection default
--echo # Connect to Default
reap;
SELECT * FROM t1;
DROP TABLE t1;
CREATE TABLE t1 (
pkey INT(11) PRIMARY KEY,
a VARCHAR(100),
v VARCHAR(100) GENERATED ALWAYS AS (SUBSTRING(a,2,2)) VIRTUAL,
c varchar(100),
v1 VARCHAR(100) GENERATED ALWAYS AS (SUBSTRING(c,2,2)) VIRTUAL,
KEY k (v),
KEY v (v1)
);
INSERT INTO t1 (pkey, a, c) VALUES (149, 'bata', 'test');
INSERT INTO t1 (pkey, a, c) VALUES (150, 'bata', 'test');
INSERT INTO t1 (pkey, a, c) VALUES (160, 'bata', 'test');
SELECT pkey, a, v, c, v1 FROM t1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL index_built WAIT_FOR S2';
--send OPTIMIZE TABLE t1
connect (con1,localhost,root,,);
--echo # Connect to con1
--connection con1
SET DEBUG_SYNC = 'now WAIT_FOR index_built';
UPDATE t1 SET c = 'best' WHERE pkey = 149;
UPDATE t1 SET a = 'tata' WHERE pkey = 150;
UPDATE t1 SET a = 'tata', c = 'best' WHERE pkey = 160;
SET DEBUG_SYNC ='now signal S2';
SELECT pkey, a, v, c, v1 FROM t1;
disconnect con1;
--connection default
--echo # Connect to Default
reap;
SELECT * FROM t1;
DROP TABLE t1;
CREATE TABLE t1(
j SERIAL PRIMARY KEY,
a VARCHAR(36),
isa BOOLEAN,
ab VARCHAR(36) AS (IF(`isa`,`a`,NULL )),
KEY k(ab)
);
INSERT INTO t1 (a, isa) VALUES ('test', 1);
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL index_built WAIT_FOR S2';
--send OPTIMIZE TABLE t1
connect (con1,localhost,root,,);
--echo # Connect to con1
--connection con1
SET DEBUG_SYNC = 'now WAIT_FOR index_built';
UPDATE t1 SET isa=0 ;
SET DEBUG_SYNC ='now signal S2';
SELECT j,a,isa,ab FROM t1;
disconnect con1;
--echo # Connect to Default
--connection default
reap;
SELECT j,a,isa,ab FROM t1;
UPDATE t1 SET isa = 1 WHERE a = 'test' AND isa = 0;
SELECT j,a,isa,ab FROM t1;
DROP TABLE t1;
# Test for the rollback scenario when both a virtual column and a virtual
# Index are added. The in-memory dict_index_t object should be handled
# properly, in case of any unexpected crash
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1), (1);
set session debug = '+d, force_virtual_col_build_fail';
# Prepare an index which is marked as aborted
connect (conn1,localhost,root,,);
connect (conn2,localhost,root,,);
connection default;
SET DEBUG_SYNC='innodb_commit_inplace_alter_table_enter SIGNAL rolling_back WAIT_FOR drop_created';
--send ALTER TABLE t1 ADD COLUMN (h INT GENERATED ALWAYS AS(a+1) VIRTUAL), ADD INDEX idx(h), ALGORITHM=INPLACE;
connection conn1;
SET DEBUG_SYNC='now WAIT_FOR rolling_back';
SET DEBUG_SYNC='row_search_for_mysql_before_return SIGNAL scanning WAIT_FOR continue_scan';
--send SELECT * FROM t1;
connection conn2;
SET DEBUG_SYNC='now WAIT_FOR scanning';
SET DEBUG_SYNC='now SIGNAL drop_created';
connection default;
--error ER_GET_ERRNO
--reap
connection conn2;
SET DEBUG_SYNC='now SIGNAL continue_scan';
connection conn1;
--reap;
disconnect conn1;
disconnect conn2;
connection default;
set session debug = '-d, row_merge_drop_indexes_force_table_count';
INSERT INTO t1 VALUES(1);
CHECK TABLE t1;
DROP TABLE t1;
--source include/wait_until_count_sessions.inc