SET sql_mode='NO_ZERO_IN_DATE';

CREATE TABLE t(a INT,b CHAR(1)AS (CONCAT('',DAYNAME('')))) COLLATE utf8_bin;

INSERT INTO t VALUES(0,'');

ALTER TABLE t ADD KEY(a);

CREATE TABLE t2(c1 char(1),INDEX(c1)) DEFAULT CHARSET=utf8;

SELECT SLEEP(1);

Core was generated by `/test/GAL_MD070222-mariadb-10.8.1-linux-x86_64-dbg/bin/mysqld --defaults-file=/'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11)

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

[Current thread is 1 (Thread 0x150cc8132700 (LWP 4048716))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

56	../sysdeps/unix/sysv/linux/pthread_kill.c: No such file or directory.

[Current thread is 1 (Thread 0x14d1c5545700 (LWP 16356))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x000055a405e305c1 in my_write_core (sig=sig@entry=11) at /test/10.8_dbg/mysys/stacktrace.c:424

#2  0x000055a405616ce3 in handle_fatal_signal (sig=11) at /test/10.8_dbg/sql/signal_handler.cc:345

#3  <signal handler called>

#4  0x000055a4051f3893 in Item_args::walk_args (arg=0x14d1c553f6b0, walk_subquery=false, processor=<optimized out>, this=0x14d1ec0301f0) at /test/10.8_dbg/sql/item.h:2741

#5  Item_func_or_sum::walk (this=0x14d1ec030180, processor=<optimized out>, walk_subquery=false, arg=0x14d1c553f6b0) at /test/10.8_dbg/sql/item.h:5437

#6  0x000055a4053f8da7 in mysql_prepare_create_table (thd=thd@entry=0x14d1a0000ff8, create_info=create_info@entry=0x14d1c5542810, alter_info=alter_info@entry=0x14d1c5542720, 

    db_options=db_options@entry=0x14d1c553f7d8, file=file@entry=0x14d1a00103c0, key_info_buffer=key_info_buffer@entry=0x14d1c55401f0, key_count=0x14d1c55401e0, create_table_mode=-2, db=..., table_name=...)

    at /test/10.8_dbg/sql/sql_table.cc:3689

#7  0x000055a4053fa460 in mysql_create_frm_image (thd=thd@entry=0x14d1a0000ff8, db=..., table_name=..., create_info=create_info@entry=0x14d1c5542810, alter_info=alter_info@entry=0x14d1c5542720, 

    create_table_mode=create_table_mode@entry=-2, key_info=0x14d1c55401f0, key_count=0x14d1c55401e0, frm=0x14d1c5540210) at /test/10.8_dbg/sql/sql_table.cc:4275

#8  0x000055a4053fb8fd in create_table_impl (thd=thd@entry=0x14d1a0000ff8, ddl_log_state_create=ddl_log_state_create@entry=0x0, ddl_log_state_rm=<optimized out>, ddl_log_state_rm@entry=0x0, orig_db=..., 

    orig_table_name=..., db=..., table_name=..., path=..., options=..., create_info=0x14d1c5542810, alter_info=0x14d1c5542720, create_table_mode=-2, is_trans=0x0, key_info=0x14d1c55401f0, 

    key_count=0x14d1c55401e0, frm=0x14d1c5540210) at /test/10.8_dbg/sql/sql_table.cc:4587

#9  0x000055a405401dcd in mysql_alter_table (thd=thd@entry=0x14d1a0000ff8, new_db=new_db@entry=0x14d1a0005ca0, new_name=new_name@entry=0x14d1a00060b8, create_info=create_info@entry=0x14d1c5542810, 

    table_list=<optimized out>, table_list@entry=0x14d1a000f728, alter_info=alter_info@entry=0x14d1c5542720, order_num=0, order=0x0, ignore=false, if_exists=false) at /test/10.8_dbg/sql/sql_alter.h:302

#10 0x000055a4054934c7 in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x14d1a0000ff8) at /test/10.8_dbg/sql/structs.h:568

#11 0x000055a40531664f in mysql_execute_command (thd=thd@entry=0x14d1a0000ff8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.8_dbg/sql/sql_parse.cc:5988

#12 0x000055a4052fd08f in mysql_parse (thd=0x14d1a0000ff8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14d1c55436c0) at /test/10.8_dbg/sql/sql_parse.cc:8027

#13 0x000055a4057b6e4d in Query_log_event::do_apply_event (this=0x14d1a0022908, rgi=0x14d1a0021640, query_arg=0x14d1a0027ae3 "ALTER TABLE t ADD KEY(a)", q_len_arg=<optimized out>)

    at /test/10.8_dbg/sql/sql_class.h:1362

#14 0x000055a4057b7ad4 in Query_log_event::do_apply_event (this=<optimized out>, rgi=<optimized out>) at /test/10.8_dbg/sql/log_event_server.cc:1613

#15 0x000055a405993d78 in Log_event::apply_event (rgi=0x14d1a0021640, this=0x14d1a0022908) at /test/10.8_dbg/sql/log_event.h:1566

#16 wsrep_apply_events (thd=thd@entry=0x14d1a0000ff8, rli=<optimized out>, events_buf=<optimized out>, buf_len=0) at /test/10.8_dbg/sql/wsrep_applier.cc:208

#17 0x000055a405976b91 in apply_events (thd=thd@entry=0x14d1a0000ff8, rli=<optimized out>, data=..., err=...) at /test/10.8_dbg/wsrep-lib/include/wsrep/buffer.hpp:48

#18 0x000055a4059772b1 in Wsrep_high_priority_service::apply_toi (this=0x14d1c5544d10, ws_meta=..., data=..., err=...) at /test/10.8_dbg/sql/wsrep_high_priority_service.cc:416

#19 0x000055a405f97519 in apply_toi (data=..., ws_meta=..., ws_handle=..., high_priority_service=..., provider=...) at /test/10.8_dbg/wsrep-lib/src/server_state.cpp:461

#20 wsrep::server_state::on_apply (this=<optimized out>, high_priority_service=..., ws_handle=..., ws_meta=..., data=...) at /test/10.8_dbg/wsrep-lib/src/server_state.cpp:1103

#21 0x000055a405fa7972 in wsrep::high_priority_service::apply (data=..., ws_meta=..., ws_handle=..., this=0x14d1c5544d10) at /test/10.8_dbg/wsrep-lib/include/wsrep/high_priority_service.hpp:47

#22 (anonymous namespace)::apply_cb (ctx=ctx@entry=0x14d1c5544d10, wsh=wsh@entry=0x14d1c5543d20, flags=flags@entry=69, buf=buf@entry=0x14d1c5543d30, meta=meta@entry=0x14d1c5543fe0, 

    exit_loop=exit_loop@entry=0x14d1c5543f9f) at /test/10.8_dbg/wsrep-lib/src/wsrep_provider_v26.cpp:507

#23 0x000014d2127bc9b5 in galera::TrxHandleSlave::apply (this=this@entry=0x14d1a00274b0, recv_ctx=recv_ctx@entry=0x14d1c5544d10, 

    apply_cb=0x55a405fa77ef <(anonymous namespace)::apply_cb(void*, wsrep_ws_handle_t const*, uint32_t, wsrep_buf_t const*, wsrep_trx_meta_t const*, wsrep_bool_t*)>, meta=..., 

    exit_loop=exit_loop@entry=@0x14d1c5543f9f: false) at /test/10.4_galera/galera/src/trx_handle.cpp:396

#24 0x000014d2127d314e in galera::ReplicatorSMM::apply_trx (this=0x55a40827f1b0, recv_ctx=0x14d1c5544d10, ts=...) at /test/10.4_galera/galera/src/replicator_smm.cpp:516

#25 0x000014d2127d7378 in galera::ReplicatorSMM::process_trx (this=0x55a40827f1b0, recv_ctx=0x14d1c5544d10, ts_ptr=...) at /test/10.4_galera/galera/src/replicator_smm.cpp:2136

#26 0x000014d212808e59 in galera::GcsActionSource::process_writeset (this=0x55a408277d40, recv_ctx=0x14d1c5544d10, act=..., exit_loop=@0x14d1c554491f: false)

    at /test/10.4_galera/galera/src/gcs_action_source.cpp:62

#27 0x000014d2128098a3 in galera::GcsActionSource::dispatch (this=0x55a408277d40, recv_ctx=0x14d1c5544d10, act=..., exit_loop=<optimized out>) at /test/10.4_galera/galera/src/gcs_action_source.cpp:110

#28 0x000014d212809e62 in galera::GcsActionSource::process (this=0x55a408277d40, recv_ctx=0x14d1c5544d10, exit_loop=@0x14d1c554491f: false) at /test/10.4_galera/galera/src/gcs_action_source.cpp:186

#29 0x000014d2127d47f0 in galera::ReplicatorSMM::async_recv (this=0x55a40827f1b0, recv_ctx=0x14d1c5544d10) at /test/10.4_galera/galera/src/replicator_smm.cpp:402

#30 0x000014d2127a8e91 in galera_recv (gh=<optimized out>, recv_ctx=<optimized out>) at /test/10.4_galera/galera/src/wsrep_provider.cpp:263

#31 0x000055a405fa864a in wsrep::wsrep_provider_v26::run_applier (this=<optimized out>, applier_ctx=<optimized out>) at /test/10.8_dbg/wsrep-lib/src/wsrep_provider_v26.cpp:858

#32 0x000055a4059963c3 in wsrep_replication_process (thd=0x14d1a0000ff8, arg=<optimized out>) at /test/10.8_dbg/sql/wsrep_server_state.h:51

#33 0x000055a40598371d in start_wsrep_THD (arg=arg@entry=0x55a4089093c0) at /test/10.8_dbg/sql/wsrep_mysqld.h:573

#34 0x000055a4059145dd in pfs_spawn_thread (arg=0x55a4089f5c88) at /test/10.8_dbg/storage/perfschema/pfs.cc:2201

#35 0x000014d213269609 in start_thread (arg=<optimized out>) at pthread_create.c:477

--Type <RET> for more, q to quit, c to continue without paging--

#36 0x000014d212e57293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

#5  <signal handler called>

#6  0x000055e0ada637d4 in Item_args::walk_args (this=0x7f43000368f0, processor=&virtual Item::cleanup_excluding_fields_processor(void*), walk_subquery=false, arg=0x0) at /home/midenok/src/mariadb/10.6b/src/sql/item.h:2741

#7  0x000055e0ada5dac4 in Item_func_or_sum::walk (this=0x7f4300036880, processor=&virtual table offset 816, walk_subquery=false, arg=0x0) at /home/midenok/src/mariadb/10.6b/src/sql/item.h:5437

#8  0x000055e0add615cb in fix_session_vcol_expr (thd=0x7f4300000d58, vcol=0x7f4300036948) at /home/midenok/src/mariadb/10.6b/src/sql/table.cc:3622

#9  0x000055e0adb11288 in TABLE::fix_vcol_exprs (this=0x7f4300031a48, thd=0x7f4300000d58) at /home/midenok/src/mariadb/10.6b/src/sql/sql_base.cc:5442

#10 0x000055e0adb116ac in fix_all_session_vcol_exprs (thd=0x7f4300000d58, tables=0x7f4300039ac8) at /home/midenok/src/mariadb/10.6b/src/sql/sql_base.cc:5478

#11 0x000055e0adb0fbb0 in lock_tables (thd=0x7f4300000d58, tables=0x7f4300039ac8, count=1, flags=0) at /home/midenok/src/mariadb/10.6b/src/sql/sql_base.cc:5662

#12 0x000055e0adb10c21 in open_and_lock_tables (thd=0x7f4300000d58, options=..., tables=0x7f4300039ac8, derived=false, flags=0, prelocking_strategy=0x7f4318733950) at /home/midenok/src/mariadb/10.6b/src/sql/sql_base.cc:5274

#13 0x000055e0adabd11e in open_and_lock_tables (thd=0x7f4300000d58, tables=0x7f4300039ac8, derived=false, flags=0) at /home/midenok/src/mariadb/10.6b/src/sql/sql_base.h:509

#14 0x000055e0ae1a976f in Rows_log_event::do_apply_event (this=0x7f4300029ef8, rgi=0x7f4300021460) at /home/midenok/src/mariadb/10.6b/src/sql/log_event_server.cc:5820

#15 0x000055e0adaa62ba in Log_event::apply_event (this=0x7f4300029ef8, rgi=0x7f4300021460) at /home/midenok/src/mariadb/10.6b/src/sql/log_event.h:1566

#16 0x000055e0ae3e7397 in wsrep_apply_events (thd=0x7f4300000d58, rli=0x7f4300015fe0, events_buf=0x7f430be00b78, buf_len=0) at /home/midenok/src/mariadb/10.6b/src/sql/wsrep_applier.cc:208

--- mysql-test/suite/galera/t/basic.test

+++ mysql-test/suite/galera/t/basic.test

@@ -2,9 +2,11 @@

 --source include/have_innodb.inc

 USE test;

-CREATE TABLE t1(c1 INT PRIMARY KEY) ENGINE=INNODB;

-INSERT INTO t1 VALUES (1), (2), (3), (4), (5);

-SELECT * FROM t1;

+CREATE TABLE t1 (c1 INT NOT NULL, c2 CHAR(10) AS (CONCAT('',DAYNAME('2020-02-05')))) COLLATE utf8_bin;

+INSERT INTO t1 (c1) VALUES (0);

+INSERT INTO t1 (c1) VALUES (1);

+SELECT SLEEP(10);

+show status like '%wsrep%st%';

 --echo

 --echo # On node_1

diff --git dbsim/db_storage_engine.cpp dbsim/db_storage_engine.cpp

index c102783..4278b81 100644

--- dbsim/db_storage_engine.cpp

+++ dbsim/db_storage_engine.cpp

@@ -20,6 +20,8 @@

 #include "db_storage_engine.hpp"

 #include "db_client.hpp"

+#include <cassert>

+

 void db::storage_engine::transaction::start(db::client* cc)

 {

     wsrep::unique_lock<wsrep::mutex> lock(se_.mutex_);

@@ -106,7 +108,6 @@ wsrep::view db::storage_engine::get_view() const

 void db::storage_engine::validate_position(const wsrep::gtid& gtid) const

 {

-    using std::rel_ops::operator<=;

     if (position_.id() == gtid.id() && gtid.seqno() <= position_.seqno())

     {

         std::ostringstream os;

diff --git dbsim/db_threads.cpp dbsim/db_threads.cpp

index d066c65..a32ad9b 100644

--- dbsim/db_threads.cpp

+++ dbsim/db_threads.cpp

@@ -34,6 +34,7 @@

 #include <thread>

 #include <unordered_map>

 #include <vector>

+#include <array>

 extern "C" { static void* start_thread(void* args_ptr); }

 namespace