[Draft] Assertion failed: prebuilt->trx->error_key_num < ha_alter_info->key_count

# Run with --repeat=N if it does not crash right away. Add lock wait timeouts if it hangs.

--source include/have_innodb.inc

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

CREATE TABLE t1 (c CHAR DEFAULT '' UNIQUE) ENGINE=InnoDB;

INSERT INTO t1 () VALUES ();

--connection default

--send

	ALTER TABLE t1 FORCE;

--connection con1

--error ER_NO_SUCH_TABLE

ALTER TABLE non_existing FORCE;

--error ER_DUP_ENTRY

INSERT INTO t1 () VALUES (),(),(),();

# Cleanup

--disconnect con1

--connection default

--error 0,ER_DUP_ENTRY

--reap

DROP TABLE t1;

mysqld: /data/src/10.0/storage/innobase/handler/handler0alter.cc:4177: virtual bool ha_innodb::inplace_alter_table(TABLE*, Alter_inplace_info*): Assertion `prebuilt->trx->error_key_num < ha_alter_info->key_count' failed.

171122 15:16:54 [ERROR] mysqld got signal 6 ;

#7  0x00007f04d1458ee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6

#8  0x00007f04c9f6768b in ha_innodb::inplace_alter_table (this=0x7f04bd845088, altered_table=0x7f04bd5a6070, ha_alter_info=0x7f04d351c260) at /data/src/10.0/storage/innobase/handler/handler0alter.cc:4176

#9  0x0000000000707b7f in handler::ha_inplace_alter_table (this=0x7f04bd845088, altered_table=0x7f04bd5a6070, ha_alter_info=0x7f04d351c260) at /data/src/10.0/sql/handler.h:3580

#10 0x00000000007003b1 in mysql_inplace_alter_table (thd=0x7f04c5b69070, table_list=0x7f04bd4fa160, table=0x7f04bd913c70, altered_table=0x7f04bd5a6070, ha_alter_info=0x7f04d351c260, inplace_supported=HA_ALTER_INPLACE_NO_LOCK_AFTER_PREPARE, target_mdl_request=0x7f04d351bcb0, alter_ctx=0x7f04d351c840) at /data/src/10.0/sql/sql_table.cc:7117

#11 0x0000000000704ac7 in mysql_alter_table (thd=0x7f04c5b69070, new_db=0x7f04bd4fa740 "test", new_name=0x0, create_info=0x7f04d351d4e0, table_list=0x7f04bd4fa160, alter_info=0x7f04d351d450, order_num=0, order=0x0, ignore=false) at /data/src/10.0/sql/sql_table.cc:8948

#12 0x000000000076d365 in Sql_cmd_alter_table::execute (this=0x7f04bd4fa748, thd=0x7f04c5b69070) at /data/src/10.0/sql/sql_alter.cc:312

#13 0x000000000065398b in mysql_execute_command (thd=0x7f04c5b69070) at /data/src/10.0/sql/sql_parse.cc:5114

#14 0x0000000000656dc2 in mysql_parse (thd=0x7f04c5b69070, rawbuf=0x7f04bd4fa088 "ALTER TABLE t1 FORCE", length=20, parser_state=0x7f04d351e640) at /data/src/10.0/sql/sql_parse.cc:6569

#15 0x0000000000649901 in dispatch_command (command=COM_QUERY, thd=0x7f04c5b69070, packet=0x7f04cb5ef071 "ALTER TABLE t1 FORCE", packet_length=20) at /data/src/10.0/sql/sql_parse.cc:1296

#16 0x0000000000648c01 in do_command (thd=0x7f04c5b69070) at /data/src/10.0/sql/sql_parse.cc:999

#17 0x0000000000768ab8 in do_handle_one_connection (thd_arg=0x7f04c5b69070) at /data/src/10.0/sql/sql_connect.cc:1377

#18 0x000000000076882a in handle_one_connection (arg=0x7f04c5b69070) at /data/src/10.0/sql/sql_connect.cc:1292

#19 0x0000000000ac9564 in pfs_spawn_thread (arg=0x7f04c5b19670) at /data/src/10.0/storage/perfschema/pfs.cc:1861

#20 0x00007f04d315c494 in start_thread (arg=0x7f04d351f700) at pthread_create.c:333

#21 0x00007f04d151593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

#2  <signal handler called>

#3  0x000000000076c626 in field_unpack (to=to@entry=0x7f0ece30dd80, field=0x7f0ece30c5a0, rec=0x7f0eb8840420 "\375 ", max_length=0, prefix_key=false) at /data/src/10.0/sql/key.cc:359

#4  0x000000000076c77d in key_unpack (to=to@entry=0x7f0ece30dd80, table=table@entry=0x7f0eb8b41008, key=key@entry=0x7f0eb89c82c0) at /data/src/10.0/sql/key.cc:441

#5  0x00000000006e48d9 in print_keydup_error (table=table@entry=0x7f0eb8b41008, key=0x7f0eb89c82c0, msg=0x7f0ec77aecaa "Duplicate entry '%-.64s' for key '%-.192s'", errflag=errflag@entry=0) at /data/src/10.0/sql/handler.cc:3348

#6  0x00000000006e4a20 in print_keydup_error (table=table@entry=0x7f0eb8b41008, key=<optimized out>, errflag=errflag@entry=0) at /data/src/10.0/sql/handler.cc:3368

#7  0x00007f0ec489c16d in ha_innodb::inplace_alter_table (this=0x7f0eb8c3f020, altered_table=0x7f0eb8b41008, ha_alter_info=0x7f0ece30f0f0) at /data/src/10.0/storage/innobase/handler/handler0alter.cc:4203

#8  0x00000000006203d1 in ha_inplace_alter_table (ha_alter_info=<optimized out>, altered_table=<optimized out>, this=<optimized out>) at /data/src/10.0/sql/handler.h:3580

#9  mysql_inplace_alter_table (target_mdl_request=<optimized out>, alter_ctx=<optimized out>, inplace_supported=<optimized out>, ha_alter_info=<optimized out>, altered_table=<optimized out>, table=<optimized out>, table_list=<optimized out>, thd=<optimized out>) at /data/src/10.0/sql/sql_table.cc:7118

#10 mysql_alter_table (thd=0x7f0ec0a75008, new_db=0x7f0ece30c5a0 "", new_name=0x7f0ece30f0f0 "\200\002\061\316\016\177", create_info=0x7f0ece3101f0, table_list=0x7f0eb89c70f8, alter_info=0x7f0eb89c70f8, order_num=0, order=0x0, ignore=false) at /data/src/10.0/sql/sql_table.cc:8949

#11 0x000000000065e29d in Sql_cmd_alter_table::execute (this=0x7f0ece30c5a0, thd=0x7f0ec0a75008) at /data/src/10.0/sql/sql_alter.cc:312

#12 0x00000000005a3a87 in mysql_execute_command (thd=0x7f0ec0a75008) at /data/src/10.0/sql/sql_parse.cc:5123

#13 0x00000000005aa0b8 in mysql_parse (thd=0x7f0ec0a75008, rawbuf=<optimized out>, length=20, parser_state=0x7f0ece311850) at /data/src/10.0/sql/sql_parse.cc:6578

#14 0x00000000005abad9 in dispatch_command (command=<optimized out>, thd=0x7f0ec0a75008, packet=<optimized out>, packet_length=<optimized out>) at /data/src/10.0/sql/sql_parse.cc:1305

#15 0x00000000005ac46f in do_command (thd=<optimized out>) at /data/src/10.0/sql/sql_parse.cc:999

#16 0x000000000065b9e4 in do_handle_one_connection (thd_arg=thd_arg@entry=0x7f0ec0a75008) at /data/src/10.0/sql/sql_connect.cc:1377

#17 0x000000000065ba28 in handle_one_connection (arg=arg@entry=0x7f0ec0a75008) at /data/src/10.0/sql/sql_connect.cc:1292

#18 0x000000000088f6d4 in pfs_spawn_thread (arg=0x7f0ecb43f808) at /data/src/10.0/storage/perfschema/pfs.cc:1860

#19 0x00007f0ecdf4f494 in start_thread (arg=0x7f0ece312700) at pthread_create.c:333

#20 0x00007f0ecc09a93f in clone () from /lib/x86_64-linux-gnu/libc.so.6