Elena Stepanova added a comment - 2020-05-12 15:47 - edited Test case for 10.3-10.4: --source include/have_partition.inc   create or replace table t1 (a int ) with system versioning; alter table t1 partition by system_time (partition pn current ); 10.4 db537a83 mysqld: /data/src/10.4/sql/partition_info.cc:1259: bool partition_info::check_partition_info(THD*, handlerton**, handler*, HA_CREATE_INFO*, partition_info*): Assertion `info->alias.str' failed. 200512 18:31:16 [ERROR] mysqld got signal 6 ;   #7 0x00007f3286b3ef12 in __GI___assert_fail (assertion=0x565042db2349 "info->alias.str", file=0x565042db1c10 "/data/src/10.4/sql/partition_info.cc", line=1259, function=0x565042db34c0 <partition_info::check_partition_info(THD*, handlerton**, handler*, HA_CREATE_INFO*, partition_info*)::__PRETTY_FUNCTION__> "bool partition_info::check_partition_info(THD*, handlerton**, handler*, HA_CREATE_INFO*, partition_info*)") at assert.c:101 #8 0x00005650421e25f4 in partition_info::check_partition_info (this=0x7f3270013ec0, thd=0x7f3270000af0, eng_type=0x7f3280ce4370, file=0x7f32700147d8, info=0x7f3280ce72f0, add_or_reorg_part=0x0) at /data/src/10.4/sql/partition_info.cc:1259 #9 0x00005650421674db in mysql_create_frm_image (thd=0x7f3270000af0, db=..., table_name=..., create_info=0x7f3280ce72f0, alter_info=0x7f3280ce7230, create_table_mode=-2, key_info=0x7f3280ce4c98, key_count=0x7f3280ce4c68, frm=0x7f3280ce4d20) at /data/src/10.4/sql/sql_table.cc:4697 #10 0x0000565042168615 in create_table_impl (thd=0x7f3270000af0, orig_db=..., orig_table_name=..., db=..., table_name=..., path=0x7f3280ce6f6d "./test/#sql-7bf9_4", options=..., create_info=0x7f3280ce72f0, alter_info=0x7f3280ce7230, create_table_mode=-2, is_trans=0x0, key_info=0x7f3280ce4c98, key_count=0x7f3280ce4c68, frm=0x7f3280ce4d20) at /data/src/10.4/sql/sql_table.cc:5053 #11 0x000056504217660f in mysql_alter_table (thd=0x7f3270000af0, new_db=0x7f32700052b0, new_name=0x7f32700056b8, create_info=0x7f3280ce72f0, table_list=0x7f32700132c0, alter_info=0x7f3280ce7230, order_num=0, order=0x0, ignore=false) at /data/src/10.4/sql/sql_table.cc:10006 #12 0x000056504220ea0b in Sql_cmd_alter_table::execute (this=0x7f3270013cf8, thd=0x7f3270000af0) at /data/src/10.4/sql/sql_alter.cc:520 #13 0x000056504208d6a0 in mysql_execute_command (thd=0x7f3270000af0) at /data/src/10.4/sql/sql_parse.cc:6101 #14 0x0000565042092b65 in mysql_parse (thd=0x7f3270000af0, rawbuf=0x7f3270013198 "alter table t1 partition by system_time (partition pn current)", length=62, parser_state=0x7f3280ce8570, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:7900 #15 0x000056504207f115 in dispatch_command (command=COM_QUERY, thd=0x7f3270000af0, packet=0x7f3270136341 "alter table t1 partition by system_time (partition pn current)", packet_length=62, is_com_multi=false, is_next_command=false) at /data/src/10.4/sql/sql_parse.cc:1842 #16 0x000056504207d8b7 in do_command (thd=0x7f3270000af0) at /data/src/10.4/sql/sql_parse.cc:1360 #17 0x0000565042205426 in do_handle_one_connection (connect=0x565044e6ffe0) at /data/src/10.4/sql/sql_connect.cc:1412 #18 0x0000565042205175 in handle_one_connection (arg=0x565044e6ffe0) at /data/src/10.4/sql/sql_connect.cc:1316 #19 0x0000565042c051b1 in pfs_spawn_thread (arg=0x565044d818a0) at /data/src/10.4/storage/perfschema/pfs.cc:1869 #20 0x00007f3288ac74a4 in start_thread (arg=0x7f3280ce9700) at pthread_create.c:456 #21 0x00007f3286bfbd0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 Non-debug build doesn't crash, but the error it returns isn't very pretty: mysqltest: At line 4: query 'alter table t1 partition by system_time (partition pn current)' failed: 4128: Wrong partitions for `(null)`: must have at least one HISTORY and exactly one last CURRENT

Aleksey Midenkov added a comment - 2020-12-14 12:34 https://github.com/MariaDB/server/commit/203da9f5fc4819006310e5a94450f15afae05a07

Oleksandr Byelkin added a comment - 2020-12-16 16:21 OK to push after changing commit comment as we agreed.