InnoDB: Flagged corruption, Assertion `0' failed in Row_sel_get_clust_rec_for_mysql::operator

--source include/have_innodb.inc

CREATE TABLE t1 (a VARCHAR(10), b INT) ENGINE=InnoDB;

INSERT INTO t1 VALUES ('foo',NULL),('a',NULL),('bar',NULL);

CREATE TABLE t2 (f TEXT UNIQUE) ENGINE=InnoDB;

INSERT INTO t2 VALUES ('baz'), ('qux');

UPDATE IGNORE t1 JOIN t2 SET t2.f = t1.a;

UPDATE IGNORE t1 JOIN t2 SET t2.f = t1.a;

DELETE FROM t2;

--connect (con1,localhost,root,,test)

--send

  INSERT INTO t2 () VALUES ();

--connection default

CHECK TABLE t2;

# Cleanup

--connection con1

--reap

--disconnect con1

--connection default

DROP TABLE t1, t2;

2020-07-19 14:23:31 9 [ERROR] InnoDB: Flagged corruption of `f` in table `test`.`t2` in CHECK TABLE; Wrong count

2020-07-19 14:25:08 9 [ERROR] InnoDB: Clustered record for sec rec not found index `f` of table `test`.`t2`

InnoDB: sec index record PHYSICAL RECORD: n_fields 2; compact format; info bits 0

 0: len 8; hex 010e010e19505998; asc      PY ;;

 1: len 6; hex 000000000203; asc       ;;

InnoDB: clust index record PHYSICAL RECORD: n_fields 1; compact format; info bits 0

 0: len 8; hex 696e66696d756d00; asc infimum ;;

TRANSACTION 421930385908032, ACTIVE 0 sec starting index read

mysql tables in use 1, locked 1

0 lock struct(s), heap size 1152, 0 row lock(s)

MySQL thread id 9, OS thread handle 140455398090496, query id 30 localhost root Executing

CHECK TABLE t2

InnoDB: Submit a detailed bug report to https://jira.mariadb.org/

mysqld: /data/src/10.4/storage/innobase/row/row0sel.cc:3357: dberr_t Row_sel_get_clust_rec_for_mysql::operator()(row_prebuilt_t*, dict_index_t*, const rec_t*, que_thr_t*, const rec_t**, rec_offs**, mem_heap_t**, dtuple_t**, mtr_t*): Assertion `0' failed.

#7  0x00007fbe5ce1af12 in __GI___assert_fail (assertion=0x55bca34ad41b "0", file=0x55bca34ad0d0 "/data/src/10.4/storage/innobase/row/row0sel.cc", line=3357, function=0x55bca34b0d60 <Row_sel_get_clust_rec_for_mysql::operator()(row_prebuilt_t*, dict_index_t*, unsigned char const*, que_thr_t*, unsigned char const**, unsigned short**, mem_block_info_t**, dtuple_t**, mtr_t*)::__PRETTY_FUNCTION__> "dberr_t Row_sel_get_clust_rec_for_mysql::operator()(row_prebuilt_t*, dict_index_t*, const rec_t*, que_thr_t*, const rec_t**, rec_offs**, mem_heap_t**, dtuple_t**, mtr_t*)") at assert.c:101

#8  0x000055bca2c9d567 in Row_sel_get_clust_rec_for_mysql::operator() (this=0x7fbe521bf070, prebuilt=0x7fbe0c070e20, sec_index=0x7fbe0c06ac10, rec=0x7fbe5299c0a6 "\001\016\001\016\031PY\230", thr=0x7fbe0c071510, out_rec=0x7fbe521bef78, offsets=0x7fbe521bef98, offset_heap=0x7fbe521bef90, vrow=0x0, mtr=0x7fbe521bf900) at /data/src/10.4/storage/innobase/row/row0sel.cc:3357

#9  0x000055bca2ca2fbb in row_search_mvcc (buf=0x7fbe0c076730 "\350\a", mode=PAGE_CUR_G, prebuilt=0x7fbe0c070e20, match_mode=0, direction=0) at /data/src/10.4/storage/innobase/row/row0sel.cc:5289

#10 0x000055bca2c53b3f in row_search_for_mysql (buf=0x7fbe0c076730 "\350\a", mode=PAGE_CUR_G, prebuilt=0x7fbe0c070e20, match_mode=0, direction=0) at /data/src/10.4/storage/innobase/include/row0sel.ic:137

#11 0x000055bca2c5fe02 in row_scan_index_for_mysql (prebuilt=0x7fbe0c070e20, index=0x7fbe0c06ac10, n_rows=0x7fbe521c02f0) at /data/src/10.4/storage/innobase/row/row0mysql.cc:4718

#12 0x000055bca2abd11e in ha_innobase::check (this=0x7fbe0c070628, thd=0x7fbe0c000af0, check_opt=0x7fbe0c005cc8) at /data/src/10.4/storage/innobase/handler/ha_innodb.cc:14836

#13 0x000055bca286ade2 in handler::ha_check (this=0x7fbe0c070628, thd=0x7fbe0c000af0, check_opt=0x7fbe0c005cc8) at /data/src/10.4/sql/handler.cc:4323

#14 0x000055bca269e5a2 in mysql_admin_table(THD *, TABLE_LIST *, HA_CHECK_OPT *, const char *, thr_lock_type, bool, bool, uint, int (*)(THD *, TABLE_LIST *, HA_CHECK_OPT *), struct {...}, int (*)(THD *, TABLE_LIST *, HA_CHECK_OPT *)) (thd=0x7fbe0c000af0, tables=0x7fbe0c013250, check_opt=0x7fbe0c005cc8, operator_name=0x55bca324866c "check", lock_type=TL_READ_NO_INSERT, org_open_for_modify=false, repair_table_use_frm=false, extra_open_options=32, prepare_func=0x0, operator_func=(int (handler::*)(handler * const, THD *, HA_CHECK_OPT *)) 0x55bca286ac24 <handler::ha_check(THD*, st_ha_check_opt*)>, view_operator_func=0x55bca2626402 <view_check(THD*, TABLE_LIST*, st_ha_check_opt*)>) at /data/src/10.4/sql/sql_admin.cc:781

#15 0x000055bca26a090c in Sql_cmd_check_table::execute (this=0x7fbe0c013918, thd=0x7fbe0c000af0) at /data/src/10.4/sql/sql_admin.cc:1348

#16 0x000055bca251033e in mysql_execute_command (thd=0x7fbe0c000af0) at /data/src/10.4/sql/sql_parse.cc:6099

#17 0x000055bca251582f in mysql_parse (thd=0x7fbe0c000af0, rawbuf=0x7fbe0c013198 "CHECK TABLE t2", length=14, parser_state=0x7fbe521c1570, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:7899

#18 0x000055bca2501d64 in dispatch_command (command=COM_QUERY, thd=0x7fbe0c000af0, packet=0x7fbe0c0083a1 "", packet_length=14, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1834

#19 0x000055bca2500506 in do_command (thd=0x7fbe0c000af0) at /data/src/10.4/sql/sql_parse.cc:1352

#20 0x000055bca26895c4 in do_handle_one_connection (connect=0x55bca694f880) at /data/src/10.4/sql/sql_connect.cc:1412

#21 0x000055bca2689313 in handle_one_connection (arg=0x55bca694f880) at /data/src/10.4/sql/sql_connect.cc:1316

#22 0x000055bca3088c93 in pfs_spawn_thread (arg=0x55bca686d6f0) at /data/src/10.4/storage/perfschema/pfs.cc:1869

#23 0x00007fbe5eda34a4 in start_thread (arg=0x7fbe521c2700) at pthread_create.c:456

#24 0x00007fbe5ced7d0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97