USE test;

SET SQL_MODE='';

SET SESSION insert_id=0;

CREATE TABLE t (a INT AUTO_INCREMENT KEY) PARTITION BY HASH (a) PARTITIONS 3;

INSERT INTO t VALUES ('');

mysqld: /test/10.5_dbg/sql/handler.cc:3574: int handler::update_auto_increment(): Assertion `nr != 0' failed.

Core was generated by `/test/MD260520-mariadb-10.5.4-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGABRT, Aborted.

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6)

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:57

[Current thread is 1 (Thread 0x14b44ee82700 (LWP 1168779))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57

#1  0x0000558649c61d7a in my_write_core (sig=sig@entry=6) at /test/10.5_dbg/mysys/stacktrace.c:518

#2  0x0000558649407385 in handle_fatal_signal (sig=6) at /test/10.5_dbg/sql/signal_handler.cc:330

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51

#5  0x000014b44d5c6801 in __GI_abort () at abort.c:79

#6  0x000014b44d5b639a in __assert_fail_base (fmt=0x14b44d73d7d8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x558649f72840 "nr != 0", file=file@entry=0x558649f72162 "/test/10.5_dbg/sql/handler.cc", line=line@entry=3574, function=function@entry=0x558649f76460 <handler::update_auto_increment()::__PRETTY_FUNCTION__> "int handler::update_auto_increment()") at assert.c:92

#7  0x000014b44d5b6412 in __GI___assert_fail (assertion=assertion@entry=0x558649f72840 "nr != 0", file=file@entry=0x558649f72162 "/test/10.5_dbg/sql/handler.cc", line=line@entry=3574, function=function@entry=0x558649f76460 <handler::update_auto_increment()::__PRETTY_FUNCTION__> "int handler::update_auto_increment()") at assert.c:101

#8  0x00005586494131d2 in handler::update_auto_increment (this=this@entry=0x14b42c0380a0) at /test/10.5_dbg/sql/handler.cc:3574

#9  0x00005586497080ea in ha_partition::write_row (this=0x14b42c0380a0, buf=0x14b42c0511c8 "\377") at /test/10.5_dbg/sql/ha_partition.cc:4378

#10 0x000055864941b142 in handler::ha_write_row (this=0x14b42c0380a0, buf=0x14b42c0511c8 "\377") at /test/10.5_dbg/sql/handler.cc:6986

#11 0x000055864911ca66 in write_record (thd=thd@entry=0x14b42c015088, table=table@entry=0x14b42c0fa088, info=info@entry=0x14b44ee80a60, sink=sink@entry=0x0) at /test/10.5_dbg/sql/sql_insert.cc:2091

#12 0x0000558649127aa0 in mysql_insert (thd=thd@entry=0x14b42c015088, table_list=0x14b42c074180, fields=..., values_list=..., update_fields=..., update_values=..., duplic=DUP_ERROR, ignore=false, result=0x0) at /test/10.5_dbg/sql/sql_insert.cc:1088

#13 0x000055864915ea46 in mysql_execute_command (thd=thd@entry=0x14b42c015088) at /test/10.5_dbg/sql/sql_parse.cc:4553

#14 0x000055864916a02e in mysql_parse (thd=thd@entry=0x14b42c015088, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14b44ee813d0, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_dbg/sql/sql_parse.cc:7991

#15 0x0000558649156b42 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14b42c015088, packet=packet@entry=0x14b42c067089 "INSERT INTO t VALUES ('')", packet_length=packet_length@entry=25, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_dbg/sql/sql_parse.cc:1874

#16 0x000055864915531c in do_command (thd=0x14b42c015088) at /test/10.5_dbg/sql/sql_parse.cc:1355

#17 0x00005586492af73f in do_handle_one_connection (connect=<optimized out>, connect@entry=0x14b42d8453a8, put_in_cache=put_in_cache@entry=true) at /test/10.5_dbg/sql/sql_connect.cc:1411

#18 0x00005586492afe5b in handle_one_connection (arg=arg@entry=0x14b42d8453a8) at /test/10.5_dbg/sql/sql_connect.cc:1313

#19 0x000055864970f14e in pfs_spawn_thread (arg=0x14b44c845888) at /test/10.5_dbg/storage/perfschema/pfs.cc:2201

#20 0x000014b44e2a96db in start_thread (arg=0x14b44ee82700) at pthread_create.c:463

#21 0x000014b44d6a788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95