Server crashes in mi_make_key / sort_key_read

#3  <signal handler called>

#4  _mi_make_key (info=info@entry=0x7f2b9bc8fc70, keynr=2, key=0x19 <error: Cannot access memory at address 0x19>, key@entry=0x18 <error: Cannot access memory at address 0x18>, record=0x7f2b9bcdf488 "\002\020\340\002", filepos=64) at /data/src/10.2/storage/myisam/mi_key.c:88

#5  0x00007f2ba75dfb45 in sort_key_read (sort_param=0x7f2ba7dc3db0, key=0x18) at /data/src/10.2/storage/myisam/mi_check.c:3136

#6  0x00007f2ba7612b9f in find_all_keys (tempfile_for_exceptions=0x7f2ba7dc3950, tempfile=0x7f2ba7dc37d0, maxbuffer=0x7f2ba7dc376c, buffpek=0x7f2ba7dc3770, sort_keys=0x7f2b9bce0070, keys=101, info=0x7f2ba7dc3db0) at /data/src/10.2/storage/myisam/sort.c:312

#7  _create_index_by_sort (info=info@entry=0x7f2ba7dc3db0, no_messages=<optimized out>, sortbuff_size=<optimized out>) at /data/src/10.2/storage/myisam/sort.c:228

#8  0x00007f2ba75e5283 in mi_repair_by_sort (param=0x7f2b9be41088, info=0x7f2b9bc8fc70, name=0x7f2ba7dc4680 "./test/#sql-249_3", rep_quick=1) at /data/src/10.2/storage/myisam/mi_check.c:2401

#9  0x00007f2ba75d7f5a in ha_myisam::repair (this=this@entry=0x7f2b9bcb4888, thd=thd@entry=0x7f2b9bc16070, param=..., do_optimize=do_optimize@entry=false) at /data/src/10.2/storage/myisam/ha_myisam.cc:1218

#10 0x00007f2ba75d8b17 in ha_myisam::enable_indexes (this=0x7f2b9bcb4888, mode=<optimized out>) at /data/src/10.2/storage/myisam/ha_myisam.cc:1549

#11 0x00007f2ba75d413c in ha_myisam::end_bulk_insert (this=0x7f2b9bcb4888) at /data/src/10.2/storage/myisam/ha_myisam.cc:1699

#12 0x00007f2ba6e62055 in ha_end_bulk_insert (this=0x7f2b9bcb4888) at /data/src/10.2/sql/handler.h:2874

#13 copy_data_between_tables (alter_ctx=0x7f2ba7dc5b10, keys_onoff=<optimized out>, deleted=<synthetic pointer>, copied=<synthetic pointer>, order=<optimized out>, order_num=0, ignore=<optimized out>, create=..., to=0x7f2b9bcdc470, from=0x7f2b9bcd8870, thd=0x7f2b9bc16070) at /data/src/10.2/sql/sql_table.cc:9916

#14 mysql_alter_table (thd=thd@entry=0x7f2b9bc16070, new_db=<optimized out>, new_name=<optimized out>, create_info=create_info@entry=0x7f2ba7dc6710, table_list=table_list@entry=0x7f2b9bc64180, alter_info=alter_info@entry=0x7f2ba7dc6660, order_num=0, order=0x0, ignore=false) at /data/src/10.2/sql/sql_table.cc:9349

#15 0x00007f2ba6ebc8f9 in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x7f2b9bc16070) at /data/src/10.2/sql/sql_alter.cc:324

#16 0x00007f2ba6dc492b in mysql_execute_command (thd=thd@entry=0x7f2b9bc16070) at /data/src/10.2/sql/sql_parse.cc:6116

#17 0x00007f2ba6dc62d2 in mysql_parse (thd=thd@entry=0x7f2b9bc16070, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x7f2ba7dc88e0, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /data/src/10.2/sql/sql_parse.cc:7790

#18 0x00007f2ba6dc855b in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f2b9bc16070, packet=packet@entry=0x7f2b9bc58071 "ALTER TABLE t1 ADD INDEX(col_year)", packet_length=packet_length@entry=34, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /data/src/10.2/sql/sql_parse.cc:1799

#19 0x00007f2ba6dcb08d in do_command (thd=0x7f2b9bc16070) at /data/src/10.2/sql/sql_parse.cc:1359

#20 0x00007f2ba6eb8f4a in do_handle_one_connection (connect=connect@entry=0x7f2ba4071410) at /data/src/10.2/sql/sql_connect.cc:1354

#21 0x00007f2ba6eb9133 in handle_one_connection (arg=arg@entry=0x7f2ba4071410) at /data/src/10.2/sql/sql_connect.cc:1260

#22 0x00007f2ba71671bf in pfs_spawn_thread (arg=0x7f2ba4015df0) at /data/src/10.2/storage/perfschema/pfs.cc:1862

#23 0x00007f2ba64ba0a4 in start_thread (arg=0x7f2ba7dca300) at pthread_create.c:309

#24 0x00007f2ba4cda87d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

CREATE TABLE t1 ( 

 pk BIGINT AUTO_INCREMENT,

 col_date DATE NULL,

 col_datetime DATETIME(1) NULL,

 col_int TINYINT(13) UNSIGNED ZEROFILL NULL,

 col_varchar VARBINARY(2222) NULL,

 col_timestamp TIMESTAMP(2) NULL,

 col_bit BIT(64) NOT NULL DEFAULT 0,

 col_blob MEDIUMBLOB NULL,

 col_dec DECIMAL(10,9) ZEROFILL NOT NULL DEFAULT 0,

 col_time TIME(4) NULL,

 col_year YEAR NOT NULL DEFAULT '1970',

 col_char CHAR(129) NULL,

 col_enum SET('','a','b','c','d','e','f','foo','bar') NULL,

 vcol_dec DECIMAL(50,18) ZEROFILL AS (col_dec) VIRTUAL,

 vcol_bit BIT(48) AS (col_bit) VIRTUAL,

 vcol_char CHAR(224) AS (col_char) VIRTUAL,

 vcol_datetime DATETIME(4) AS (col_datetime) VIRTUAL,

 vcol_year YEAR AS (col_year) VIRTUAL,

 vcol_varchar VARBINARY(356) AS (col_varchar) VIRTUAL,

 vcol_blob MEDIUMBLOB AS (col_blob) VIRTUAL,

 vcol_timestamp TIMESTAMP(5) AS (col_timestamp) VIRTUAL,

 vcol_int BIGINT(46) AS (col_int) VIRTUAL,

 vcol_time TIME(1) AS (col_time) VIRTUAL,

 vcol_date DATE AS (col_date) VIRTUAL,

 vcol_enum SET('','a','b','c','d','e','f','foo','bar') AS (col_enum) VIRTUAL,

 UNIQUE(pk),

 PRIMARY KEY(pk)

 ) ENGINE=MyISAM;

INSERT INTO t1 (col_date,col_datetime,col_int,col_varchar,col_timestamp,col_bit,col_blob,col_dec,col_time,col_year,col_char,col_enum) VALUES

 (NULL,'2011-04-17 15:46:11.056462',6,'rsprn','1980-01-01 00:00:00',b'0001011111000111001110000110100110010101101','spr',0.0,'00:00:00',1988,'p',''),

 ('2007-05-18',NULL,5,'rnwg','2009-07-07 23:46:32.052699',b'01010','n',0.6,'04:35:56.018027',1995,'wgrpq',''),

 ('1994-03-16','2006-03-15 22:48:25.013225',7,'grpquarw','2034-05-17 10:51:23.048265',b'0001011101001011000111101','rp',0.3,'15:13:22.043368',2004,'pq',''),

 ('1980-01-01','1987-06-01 04:14:04.027480',1,'qu','1989-07-05 09:46:16.038513',b'001111011000100011100111010100101010000100010100101','uar',0.6,'11:56:35.031314',1986,'',''),

 ('2014-08-16','2021-01-08 20:59:16.041252',0,'arw','2022-12-20 22:48:53.014627',b'110110101100001011001110110100','m',0.6,'17:26:26.039855',2008,'rw',''),

 ('1981-12-02','1992-02-10 09:29:41.028674',6,'wk','2017-09-25 10:37:25.043516',b'010101001110111010101001101000101010',NULL,0.7,'00:00:00',2035,'kaz',''),

 ('2022-11-11','2029-03-07 17:24:19.043489',122,'a','1980-01-01 00:00:00',b'0001100111011','z',0.0,'10:23:45.050733',2018,'a',''),

 ('2004-03-12','1979-02-18 00:00:00',0,'zjeiwvd','1998-07-03 16:09:05.053954',b'0000110101111001001110100100111001111111100001110','',0.4,'07:43:46.015324',2028,'je',''),

 ('2016-08-08','1986-03-10 00:00:00',3,'eiwv','2025-08-07 12:24:53.040869',b'010001101110100111111','iw',0.3,'02:48:45.058781',2020,'',''),

 ('1979-02-25',NULL,2,'wvd','1980-01-01 00:00:00',b'010','vdm',0.1,'13:35:24.021296',1995,'dmd',''),

 ('2012-04-19','2034-10-06 23:29:21.057367',9,'mdiv','2022-05-16 05:28:40.005808',b'110111111101000010011011001','divj',0.3,'11:24:50.017885',1997,'iv',''),

 ('2009-10-13','1997-01-21 13:04:34.011524',1,'vjqs','1980-01-01 00:00:00',b'11110011100101011100001110110000101001100010000011110110011','j',0.7,'00:00:00',2008,'qsxmh',''),

 ('2012-01-01','2011-06-23 06:11:33.014723',9,'r','2022-04-27 05:29:32.023395',b'1001011010101100100111','',0.5,'03:34:01.048002',1976,'sx',''),

 ('2007-08-24','2012-01-24 22:16:53.014811',2,'fpp','2005-10-11 08:58:32.021273',b'011011111011',NULL,0.4,'18:11:17.036115',2026,'m',''),

 (NULL,'1985-05-28 00:00:00',7,'hjw','2030-06-10 10:15:54.061818',b'0011110101001100011011000101010','',0.5,'02:03:21.020237',1994,'z',''),

 ('2006-09-09','2002-11-10 06:16:27.008631',0,'jw','2030-07-16 00:00:00',b'11101110111101000010101110000010001110110001001101110100','wa',0.8,'00:00:00',1974,'',''),

 ('1993-04-22','1980-01-01 00:00:00',3,'a','2020-02-06 08:11:00.051515',b'001110110010','gew',0.4,'11:59:05.013933',1998,NULL,''),

 ('1985-11-05','2019-12-24 04:13:43.062741',7,'foo','1986-07-02 00:00:00',b'10100110001010100011111111101011011101001110010110101100110000','',0.5,'17:32:55.060182',1978,'w',''),

 ('2007-02-20','2033-10-16 18:47:42.006517',1,'clc','1971-10-14 00:00:00',b'100001010','',0.1,'20:38:42.062598',2004,'lcfy',''),

 ('1979-12-10','1972-08-04 00:00:00',8,'','2021-12-24 04:51:09.011443',b'011010010010010010011101000010110011110110110010100010','e',0.1,'23:08:10.014396',2026,'cfykywl',''),

 ('2002-07-04',NULL,NULL,'fyky','1980-11-02 00:00:00',b'10000010111010000110','f',0.6,'13:07:14.014203',1979,'ykywl',''),

 ('2019-02-15','2004-08-28 10:16:46.053753',8,'kywl','2004-12-01 00:00:00',b'010111010110001110110011000010110111011','ywlcne',0.2,'09:10:39.028897',2031,'wlcnemiuaab',''),

 ('1989-05-15','1973-09-04 00:00:00',2,'lcne',NULL,b'100001100101110110000011110','',0.9,'19:22:16.015548',2013,'cnemiuaa',''),

 ('2023-04-20','2018-12-04 04:19:46.040664',8,NULL,'1985-04-18 05:32:12.013509',b'111011011111100100000001','nem',0.1,'23:18:05.007794',2026,'emiua',''),

 (NULL,'2024-08-10 03:52:31.047182',2,'miua','2035-09-03 06:07:22.008308',b'000111','',0.1,'03:58:02.003946',1988,'iua',''),

 ('1977-09-01','1987-02-01 03:44:00.061840',5,'u','1997-11-27 04:02:13.014551',b'111110001001100101101000100010001011101000011',NULL,0.3,'00:00:00',1985,'aab',''),

 (NULL,'1980-01-01 00:00:00',6,'a','1989-03-02 09:07:11.058643',b'10101001011110110010111010010100001010000110000110010',NULL,0.8,'17:41:15.057101',1975,'br',''),

 ('1980-01-01','2019-02-10 20:56:51.063985',NULL,'rr','2000-02-28 01:38:27.004468',b'0101001011110001010001','rifnhu',0.5,'20:55:57.029281',1973,'if',''),

 (NULL,'2019-04-15 02:13:03.019581',7,'fnhu','2000-03-25 18:48:46.063113',b'011000110','nhuu',0.0,'00:00:00',2030,'h',''),

 ('1997-04-01',NULL,3,NULL,'1976-05-22 04:48:42.013754',b'101110101010000111101',NULL,0.1,'12:09:48.030076',2031,'u',''),

 (NULL,'1993-10-10 15:11:03.021823',NULL,'ufzasunkrcpvasdqkxbwptigbpnesqigwegcnfeuvrgnecpthm','1986-06-12 04:29:01.017855',b'11110','fza',0.9,NULL,1994,'zasun',''),

 ('1997-02-13','2001-04-08 02:01:53.018388',0,'as','1975-09-18 00:00:00',b'00111000101001001101001000100100010101110011010111000001011011','su',0.3,'15:15:31.011102',1972,'unk',''),

 ('1975-07-26','2022-12-24 00:00:00',0,'foo','1986-01-22 21:27:38.024505',b'1111110000000001000010111','krc',0.9,'05:46:08.055789',1996,'rcp',''),

 ('2000-08-04','1980-01-01 00:00:00',48,'foo','2015-12-21 17:04:06.008790',b'0100001110011001011101011101110110100010000101101100011010','g',0.7,'18:31:50.046211',2025,'pvasdq',''),

 ('2001-03-26','2032-03-19 13:15:13.063368',NULL,'foo','2026-09-05 02:46:10.026919',b'11','a',0.3,'03:12:20.039599',2019,'sdqkx',''),

 ('2035-01-14','1987-09-15 05:46:00.041527',4,'p','1980-01-01 00:00:00',b'1111100111','dqkxbwpt',0.0,'09:57:41.059145',1995,'q',''),

 ('2035-07-13','2011-04-13 04:05:14.025091',212,'kxbw','1985-02-14 11:58:32.002055',b'1010100011110101011111111011010','x',0.2,'19:35:02.024655',1975,'bwptig',''),

 ('2026-02-08','2015-05-04 09:31:22.017074',4,'wpt','2024-01-26 11:06:03.057899',b'011000010000100000011000011011000100101111001100000111011010','ptig',0.0,'00:00:00',1977,'tig',''),

 ('1981-05-11',NULL,NULL,'foo','1981-12-09 10:10:34.008107',b'01000100100100110011111','gbp',0.0,'13:05:42.035253',2019,'bpn',''),

 ('1977-05-16',NULL,9,'pne',NULL,b'001101100111001110110010111001110100','s',0.0,'15:09:37.063819',1998,'ne',''),

 ('1980-01-01','2018-12-02 00:27:35.056455',2,'','1981-07-07 23:39:32.028644',b'0000101001010111010001101000','es',0.3,'15:43:30.016638',2013,NULL,''),

 ('2027-09-05','1998-05-14 04:15:42.009728',1,'s','2015-07-16 00:00:00',b'01011101101010000110011010000111001000001000011','',0.6,'08:39:24.041879',2035,'qigweg',''),

 ('2005-02-04',NULL,2,'i','1974-01-11 11:02:16.024653',b'01001101110001001101101010011001001101010010000','gw',0.6,'03:28:30.012172',1978,'weg',''),

 (NULL,'1976-06-21 00:00:00',5,NULL,'2023-11-25 15:49:52.021725',b'101011010001100','e',0.1,'00:00:00',1977,'gcn',''),

 ('1989-07-13',NULL,1,'c','1978-02-22 02:55:14.047104',b'01101010100001100110111011101000111011101101110011','f',0.8,NULL,1987,'nfeu',''),

 ('2004-04-27','2019-06-28 08:04:35.039213',0,'f','1990-01-09 14:22:27.065127',b'00101001011','eu',0.0,'13:33:09.039791',2007,'uvrgne',''),

 ('2008-09-08','1990-11-05 00:00:00',1,'w','2026-12-23 00:00:00',b'0001101','vrgnec',0.3,'19:13:14.037732',1983,'d',''),

 ('2026-08-12','2026-11-23 11:18:35.012315',4,'rgnec','1988-09-06 07:11:55.057710',b'11010111001001101100100010110011100001000100001011000000000010','',0.9,NULL,1982,'gnecpth',''),

 ('1992-12-03','2033-08-18 04:47:11.033829',65,'n','1989-11-21 17:42:13.012747',b'11011011110000000',NULL,0.9,'10:08:34.006377',1971,'ecpth',''),

 ('1976-10-11','1975-05-18 00:00:00',3,'c','2017-11-06 03:33:38.002741',b'0111100010000111000111111100111100111000101100111111100','p',0.7,'03:28:07.039921',2014,'thmhf',''),

 ('2014-04-19','2023-08-07 16:18:59.024013',0,'','2006-05-04 23:01:46.019351',b'0101101011011101101011101110000001001000110100101000011001110','h',0.5,'00:00:00',1995,'m',''),

 ('1990-07-16','1980-01-01 00:00:00',8,'hffqbythjwpukqubzpomntrddrwhzjtqvb','1985-08-04 05:33:20.030471',b'001101111111100110101111000011100','ff',0.0,'00:00:00',2002,'fqbythj',''),

 (NULL,'2019-01-12 00:00:00',0,NULL,'2009-01-25 00:00:00',b'100111111010000110010011100100000011101001010101111','qb',0.4,'20:35:33.059895',1981,'byt',''),

 ('1991-10-07',NULL,2,'yt','2027-04-19 06:38:46.020191',b'001','t',0.4,'10:02:06.014126',2004,'h',''),

 (NULL,'2009-07-05 00:00:00',241,'j','1981-06-26 12:35:20.061910',b'10101110001101001000011010010111000','wpukqu',0.5,'00:00:00',1973,'pukqu',''),

 ('2001-05-26','2007-01-06 00:57:02.048605',0,'u',NULL,b'111100','k',0.7,'03:19:10.052988',2026,'q',NULL),

 ('2008-03-15','1990-09-11 00:00:00',5,'ubz','1980-01-01 00:00:00',b'11010111011110001101111000000011000111101100111','b',0.5,'00:34:27.006616',2013,NULL,''),

 ('1984-08-01','2000-09-20 09:35:47.025609',3,'zp','2016-11-22 19:38:52.053299',b'00000010','po',0.7,'19:47:19.014687',1996,'o',''),

 ('1978-02-05','1978-05-08 04:30:57.023271',7,'foo','2000-04-06 08:42:13.019650',b'11000110111100101010001110111101111000001101','n',0.8,NULL,1980,'trdd',''),

 ('2017-04-11','2002-09-26 12:59:43.051659',8,'rd','1972-03-27 13:09:07.017459',b'00011110001001001000000100110100101010','ddrwh',0.7,'00:00:00',2021,'drwhzj',''),

 ('1980-01-01','1986-05-04 05:15:19.008418',0,'r','2005-10-04 09:21:09.020131',b'1101100010101001010011010001011101001111110010101111011','wh',0.0,'00:00:00',1975,'hzjtqv',''),

 ('2035-12-12','1980-01-01 00:00:00',0,'x',NULL,b'0010000101010110111100000110000010001000100001000110111000010110','zjt',0.4,'15:51:12.040679',1984,'jtqvbji',''),

 ('1993-05-12','2000-11-11 20:54:49.053753',0,'tqvb','2022-02-26 14:26:36.004981',b'110000101110000111011','qv',0.7,'00:00:00',1972,'v',''),

 ('1971-08-22','2029-02-15 16:39:35.007278',2,NULL,'2033-09-22 08:28:19.057517',b'11111101011101110111100011011111001','bji',0.8,'08:34:37.000701',2000,'o',''),

 (NULL,NULL,5,'foo','1982-02-24 00:00:00',b'00111111000111111111010111010111011101','iklce',0.8,'01:23:11.014485',2021,'klcek',''),

 (NULL,NULL,8,'lce','1988-07-28 11:48:23.011427',b'101101000101010000000100000001011','',0.3,'17:15:34.034697',1991,'cekxqy',''),

 ('2029-12-07','1993-12-24 00:45:29.060155',3,'ekx','1980-01-01 00:00:00',b'01001010110110000100100100111010110000000101001011111110001100','q',0.7,'10:39:47.004022',2006,'foo',''),

 ('2015-10-20','1980-01-01 00:00:00',189,'xqy','2028-12-19 00:00:00',b'101001011011100101110010101000101110100110','qy',0.5,'15:16:59.059052',1993,'foo',''),

 ('1998-08-07','2017-08-07 01:53:34.056737',5,'oxsolbx',NULL,b'1000111010110010110','xsolbxth',0.3,'22:56:09.003450',2014,'s',''),

 ('2016-01-25','2000-09-14 22:35:41.048328',6,'foo','2004-10-11 00:00:00',b'001','olbxt',0.0,'14:15:54.033066',1983,'lbxt',''),

 ('1979-09-02','2027-01-19 09:34:15.034597',4,'bxth','1989-10-23 09:11:09.055445',b'011011001110000011011011',NULL,0.8,'05:31:31.006489',1978,'xthdc',''),

 ('1980-01-01',NULL,8,'th','2012-02-07 00:00:00',b'00101011001100111001101011010110','hdc',0.0,'22:09:17.054381',2013,'dcprs',''),

 (NULL,'2018-08-03 17:37:14.049040',2,'cprswpj','1990-07-28 07:56:50.026324',b'0000010111011110100100010010011011010010001111011010000010011101','',0.1,NULL,1971,'prswpjx',''),

 ('1984-05-07','2012-05-07 00:00:00',1,'rswp','2030-05-09 07:42:25.003848',b'1001','swp',0.4,'13:27:32.040813',1997,'wpj',''),

 (NULL,'2030-03-22 14:03:46.000742',7,'pjxixm','2022-05-11 00:00:00',b'00111110011001010010001111010001111110010010000111','j',0.8,'00:00:00',1996,'x',NULL),

 ('2000-12-03','2020-08-13 16:03:09.041436',8,'ix','1985-05-19 11:28:09.002728',b'11011010000101000110111111010111','xmvfwm',0.9,'19:06:00.002417',1976,'m',''),

 ('1990-03-13','2035-09-08 21:29:04.011731',5,'vfwmsys','2029-11-03 04:28:54.058532',b'0110001011001010100','fw',0.6,'20:30:32.032224',1994,'wmsys',''),

 ('2035-06-04','2027-06-07 11:27:21.038934',8,'ms','1987-09-02 00:00:00',b'001101101101111110010110110011','syse',0.1,'01:10:53.060943',2027,'yse',''),

 (NULL,'1993-06-06 07:29:56.029103',NULL,'','1971-06-08 23:51:55.054403',b'11001110001111111001001010101110111011000100111010','se',0.2,'10:24:53.013058',1995,'eb',''),

 ('2018-06-12','2020-08-06 23:47:35.060301',5,NULL,NULL,b'110011110111010111','blwc',0.6,NULL,1971,'lwc',''),

 ('2005-02-03','2016-10-11 00:00:00',0,'w','2005-03-25 00:00:00',b'0101001001001','',0.2,'21:56:26.025743',1971,'c',''),

 ('2025-10-10',NULL,1,'vumvyv','2034-05-06 18:17:26.004829',b'10110101101100100001000011001111100100111101100','um',0.3,'19:42:29.005509',1992,'m',''),

 ('2014-01-27','1980-01-01 00:00:00',2,'vyvb','1975-04-08 10:13:06.052060',b'111011110111111010011111011011101111','yv',0.4,'15:13:32.059509',2011,NULL,''),

 ('2016-08-04','2008-12-03 01:55:41.030042',6,'vb','1993-09-08 00:01:40.016566',b'000101110101100111001101010110','b',0.5,'08:39:05.055786',1993,'it',''),

 ('1980-01-01','1980-01-01 00:00:00',9,'tx','1991-07-19 05:37:43.056696',b'110110111010111101010001100010111100110011111010100100100','k',0.9,'00:00:00',1999,'h',''),

 (NULL,'2007-06-14 15:47:29.017306',9,'foo',NULL,b'0100111000001011111000111010000011011000011000101010','qjxdzd',0.3,'13:52:31.035851',2001,'jxdzd',''),

 (NULL,'2022-04-28 18:27:19.060240',4,'foo','2018-02-28 02:49:16.013066',b'10000100000000110011011110101110100001100011101110011011100','d',0.0,'15:01:48.022368',1987,'zdytun',''),

 ('1987-10-10','1975-06-02 02:47:57.012240',9,'dy','1980-06-10 00:00:00',b'110000111','',0.7,'08:13:44.003967',1981,'',''),

 ('2015-09-28',NULL,4,'d','2005-08-09 08:35:04.039832',b'00','b',0.1,'00:47:43.048164',1973,'yt',''),

 ('2030-01-18','2011-12-09 00:00:00',6,NULL,'1982-05-13 00:00:00',b'111110100001000010001110110010111100001011010','v',0.2,'00:39:24.001557',2027,'tun',''),

 ('1980-06-28','2016-04-07 00:00:00',8,'y','1980-01-01 00:00:00',b'01011100100001010110101110111110110','unq',0.7,'00:00:00',2016,'foo',''),

 ('2018-09-16','1975-01-03 00:00:00',NULL,'qv','2028-05-10 00:00:00',b'0001100101001011100110','vv',0.0,'23:54:42.064230',2000,'vr',''),

 ('2033-12-11','2021-07-23 12:20:17.025201',3,'rm','1996-07-16 00:00:00',b'1011001110','mpyx',0.7,'04:04:01.055956',2009,'pyx',''),

 ('1982-12-18','1996-09-16 00:00:00',9,'yx','2003-10-14 03:54:44.012072',b'11001011011000001111011000101111101110100101','x',0.9,NULL,1981,'rencqh',''),

 ('1980-01-01','2009-01-17 12:11:34.030449',7,'encqh','1980-01-01 00:00:00',b'1101001101001000101010001100100100','ncq',0.4,'23:44:22.012217',2030,'b',''),

 ('2015-05-03','1987-03-19 17:37:53.053429',6,'','2012-08-03 00:00:00',b'0','cq',0.0,'17:16:43.030750',2035,'qh',NULL),

 (NULL,'1980-01-01 00:00:00',1,'huyr','2012-02-11 14:15:13.004778',b'110011001100010100001101011001011110010000011001110101','',0.7,'09:33:00.034425',2024,'uyr',''),

 ('2019-06-05','2020-08-05 23:53:07.028129',1,'yr',NULL,b'1001011110101010001111101000011001011111100','rflu',0.3,NULL,2016,'fluezqe',''),

 ('1980-01-10','2025-05-12 08:22:39.039097',1,'lu','1975-07-24 00:00:00',b'10100111001111101001110000110011','',0.1,'23:58:28.031575',2005,NULL,''),

 ('2008-03-17','1982-05-27 11:44:53.038339',NULL,'uezqe','2024-10-12 02:16:04.063095',b'1001010110101101000101011011000011','e',0.9,'19:37:29.063243',1987,'zqekmq','')

;

ALTER TABLE t1 ADD INDEX(col_enum,vcol_int);

ALTER TABLE t1 ADD INDEX(col_year);