Assertion `ctx->skip_pk_sort' failed in bool prepare_inplace_alter_table_dict(Alter_inplace_info*, const TABLE*, const TABLE*, const char*, ulint, ulint, ulint, bool, bool)

SET DEBUG_DBUG='+d,innodb_alter_table_pk_assert_no_sort';

CREATE TABLE t1(c1 TIMESTAMP) ENGINE=INNODB;

CREATE UNIQUE INDEX i12 ON t1(c1);

mysqld: /test/10.6_dbg/storage/innobase/handler/handler0alter.cc:6886: bool prepare_inplace_alter_table_dict(Alter_inplace_info*, const TABLE*, const TABLE*, const char*, ulint, ulint, ulint, bool, bool): Assertion `ctx->skip_pk_sort' failed.

Core was generated by `/test/MD160321-mariadb-10.6.0-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:56

[Current thread is 1 (Thread 0x1553ac060700 (LWP 4065783))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x000055725d2ded0b in my_write_core (sig=sig@entry=6) at /test/10.6_dbg/mysys/stacktrace.c:424

#2  0x000055725ca76313 in handle_fatal_signal (sig=6) at /test/10.6_dbg/sql/signal_handler.cc:331

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#5  0x00001553ae40a859 in __GI_abort () at abort.c:79

#6  0x00001553ae40a729 in __assert_fail_base (fmt=0x1553ae5a0588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x55725d6a0e40 "ctx->skip_pk_sort", file=0x55725d69c268 "/test/10.6_dbg/storage/innobase/handler/handler0alter.cc", line=6886, function=<optimized out>) at assert.c:92

#7  0x00001553ae41bf36 in __GI___assert_fail (assertion=assertion@entry=0x55725d6a0e40 "ctx->skip_pk_sort", file=file@entry=0x55725d69c268 "/test/10.6_dbg/storage/innobase/handler/handler0alter.cc", line=line@entry=6886, function=function@entry=0x55725d69df48 "bool prepare_inplace_alter_table_dict(Alter_inplace_info*, const TABLE*, const TABLE*, const char*, ulint, ulint, ulint, bool, bool)") at assert.c:101

#8  0x000055725cea8ada in prepare_inplace_alter_table_dict (ha_alter_info=ha_alter_info@entry=0x1553ac05d240, altered_table=altered_table@entry=0x1553ac05d2f0, old_table=<optimized out>, table_name=<optimized out>, flags=<optimized out>, flags2=<optimized out>, fts_doc_id_col=<optimized out>, add_fts_doc_id=<optimized out>, add_fts_doc_id_idx=<optimized out>) at /test/10.6_dbg/storage/innobase/handler/handler0alter.cc:6885

#9  0x000055725cead60a in ha_innobase::prepare_inplace_alter_table (this=<optimized out>, altered_table=<optimized out>, ha_alter_info=<optimized out>) at /test/10.6_dbg/storage/innobase/handler/ha_innodb.h:707

#10 0x000055725ca845cd in handler::ha_prepare_inplace_alter_table (this=0x155360027640, altered_table=altered_table@entry=0x1553ac05d2f0, ha_alter_info=ha_alter_info@entry=0x1553ac05d240) at /test/10.6_dbg/sql/handler.cc:4836

#11 0x000055725c87e459 in mysql_inplace_alter_table (thd=thd@entry=0x155360000db8, table_list=0x155360013c90, table=table@entry=0x155360020e08, altered_table=altered_table@entry=0x1553ac05d2f0, ha_alter_info=ha_alter_info@entry=0x1553ac05d240, target_mdl_request=target_mdl_request@entry=0x1553ac05d840, alter_ctx=0x1553ac05e3a0) at /test/10.6_dbg/sql/sql_table.cc:8105

#12 0x000055725c89247c in mysql_alter_table (thd=thd@entry=0x155360000db8, new_db=new_db@entry=0x155360013ca8, new_name=new_name@entry=0x155360013cb8, create_info=create_info@entry=0x1553ac05f000, table_list=<optimized out>, table_list@entry=0x155360013c90, alter_info=alter_info@entry=0x1553ac05ef10, order_num=0, order=0x0, ignore=false, if_exists=false) at /test/10.6_dbg/sql/sql_table.cc:10779

#13 0x000055725c7b9b87 in mysql_execute_command (thd=thd@entry=0x155360000db8) at /test/10.6_dbg/sql/structs.h:563

#14 0x000055725c7a5876 in mysql_parse (thd=thd@entry=0x155360000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1553ac05f410) at /test/10.6_dbg/sql/sql_parse.cc:7998

#15 0x000055725c7b41e7 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x155360000db8, packet=packet@entry=0x15536000b359 "CREATE UNIQUE INDEX i12 ON t1(c1)", packet_length=packet_length@entry=33, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1318

#16 0x000055725c7b75c1 in do_command (thd=0x155360000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1397

#17 0x000055725c90f178 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55726044f2c8, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410

#18 0x000055725c90f77d in handle_one_connection (arg=arg@entry=0x55726044f2c8) at /test/10.6_dbg/sql/sql_connect.cc:1312

#19 0x000055725cdbaa5b in pfs_spawn_thread (arg=0x557260373a48) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201

#20 0x00001553ae918609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#21 0x00001553ae507293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95