select @@system_versioning_alter_history;

create table t(
  a int
);
show create table t;
--error ER_VERS_NOT_VERSIONED
alter table t drop system versioning;

alter table t add system versioning;
show create table t;

--error ER_VERS_ALTER_NOT_ALLOWED
alter table t add column y int;
--error ER_VERS_ALTER_NOT_ALLOWED
alter table t add primary key (a);
--error ER_VERS_ALTER_NOT_ALLOWED
alter table t add unique key (a);
--error ER_VERS_ALTER_ENGINE_PROHIBITED
alter table t engine innodb;

alter table t drop system versioning;
show create table t;

set system_versioning_alter_history= keep;

alter table t add system versioning;
--error ER_CANT_DROP_FIELD_OR_KEY
alter table t drop system versioning, drop column row_start;
alter table t drop system versioning;

--error ER_VERS_FIELD_WRONG_TYPE
alter table t
  add column trx_start bigint(20) unsigned as row start invisible,
  add column trx_end bigint(20) unsigned as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;

--error ER_VERS_FIELD_WRONG_TYPE
alter table t
  add column trx_start timestamp as row start invisible,
  add column trx_end timestamp as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;

--error ER_PARSE_ERROR
alter table t
  add column trx_start timestamp(6) not null as row start invisible,
  add column trx_end timestamp(6) not null as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;

alter table t
  add column trx_start timestamp(6) as row start invisible,
  add column trx_end timestamp(6) as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;
show create table t;

--error ER_MISSING
alter table t drop system versioning;

alter table t drop column trx_start, drop column trx_end;
select row_start from t;
alter table t drop system versioning;
show create table t;

--error ER_VERS_NOT_VERSIONED
alter table t add column trx_start timestamp(6) as row start;

alter table t add system versioning;
show create table t;

alter table t add column b int;
show create table t;

alter table t add column c int;
show create table t;

alter table t add column d int first;
show create table t;

alter table t add column e int after d;
show create table t;

alter table t drop column a;
show create table t;

create or replace table t (
  a int,
  row_start timestamp(6) as row start invisible,
  row_end timestamp(6) as row end invisible,
  period for system_time(row_start, row_end))
with system versioning;

select * from t for system_time all;
--error ER_MISSING
alter table t drop column row_start;
--error ER_MISSING
alter table t drop column row_end;
alter table t drop column row_start, drop column row_end;
select * from t for system_time all;
show create table t;

--error ER_CANT_DROP_FIELD_OR_KEY
alter table t drop column row_start;
--error ER_CANT_DROP_FIELD_OR_KEY
alter table t drop column row_end;

create or replace table t (
  a int,
  row_start timestamp(6) as row start invisible,
  row_end timestamp(6) as row end invisible,
  period for system_time(row_start, row_end))
with system versioning;

select * from t for system_time all;
alter table t drop column row_start, drop column row_end;
select * from t for system_time all;

create or replace table t(
  a int
);
insert into t values(1);
alter table t add system versioning;
show create table t;
insert into t values(2);
select * from t for system_time all;
select * from t;

update t set a=3 where a=1;
select * from t;
select * from t for system_time all;
select row_start from t where a=3 into @tm;
alter table t add column b int;
select @tm=row_start from t where a=3;
show create table t;
select * from t;
select * from t for system_time all;

alter table t drop system versioning;
select * from t;
show create table t;

--error ER_VERS_NOT_VERSIONED
alter table t modify a int with system versioning;
--error ER_VERS_NOT_VERSIONED
alter table t modify a int without system versioning;

alter table t add system versioning;

alter table t modify a int without system versioning;
show create table t;

alter table t modify a int with system versioning;
show create table t;

# TODO: move TRX_ID cases to separate test
-- source suite/versioning/common.inc
create or replace table t(
  a int
) engine=innodb;

alter table t
  add column trx_start timestamp(6) as row start invisible,
  add column trx_end timestamp(6) as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;

show create table t;
--echo # Issue #211: drop of system columns required before drop system versioning
alter table t drop column trx_start, drop column trx_end;
show create table t;

alter table t drop system versioning;

insert into t values(1);

call verify_trt;
alter table t
  add column trx_start bigint(20) unsigned as row start invisible,
  add column trx_end bigint(20) unsigned as row end invisible,
  add period for system_time(trx_start, trx_end),
  add system versioning;
call verify_trt;

show create table t;
alter table t drop column trx_start, drop column trx_end;

call verify_trt;
alter table t drop system versioning, algorithm=copy;
call verify_trt;

alter table t add system versioning, algorithm=copy;
call verify_trt;

show create table t;

update t set a= 2;
select * from t for system_time all;

alter table t add column b int, algorithm=copy;
show create table t;
select * from t;
call verify_trt;

alter table t drop column b, algorithm=copy;
show create table t;
select * from t for system_time all;
call verify_trt;

## FIXME: #414 IB: inplace for VERS_TIMESTAMP versioning
if (0)
{
alter table t drop system versioning, algorithm=inplace;
call verify_trt;

alter table t add system versioning, algorithm=inplace;
call verify_trt;
show create table t;

update t set a= 1;
select * from t for system_time all;
call verify_trt;

alter table t add column b int, algorithm=inplace;
show create table t;
select * from t;
call verify_trt;

alter table t drop column b, algorithm=inplace;
show create table t;
select * from t for system_time all;
}
## FIXME END

alter table t drop system versioning, algorithm=copy;
show create table t;
call verify_trt;

# nullable autoinc test w/o versioning
create or replace table t (a int);
insert t values (1),(2),(3),(4);
alter table t add b int auto_increment null unique;
select * from t;
drop table t;

create or replace table t (a int) with system versioning engine=innodb;
insert into t values (1), (2), (3);
delete from t where a<3;
--error ER_DUP_ENTRY, ER_DUP_ENTRY
alter table t add b int not null unique;
--error ER_UNSUPPORTED_EXTENSION, ER_UNSUPPORTED_EXTENSION
alter table t add b int auto_increment unique;
alter table t add b int auto_increment null unique;
select * from t;
select * from t for system_time all;
insert into t values (4, 0);
select * from t for system_time all;

create or replace table t (a int) with system versioning;
insert into t values (1), (2), (3);
delete from t where a<3;
--error ER_DUP_ENTRY, ER_DUP_ENTRY
alter table t add b int not null unique;
--error ER_UNSUPPORTED_EXTENSION, ER_UNSUPPORTED_EXTENSION
alter table t add b int auto_increment unique;
alter table t add b int auto_increment null unique;
select * from t;
select * from t for system_time all;
insert into t values (4, 0);
select * from t for system_time all;

create or replace table t (a int, b int primary key, c int unique) with system versioning;
insert t values (1,2,3),(1,3,4),(1,4,5);
alter table t drop system versioning;
show create table t;
select * from t;

create or replace table t (
  a int,
  row_start timestamp(6) as row start invisible,
  row_end timestamp(6) as row end invisible,
  period for system_time(row_start, row_end)
) with system versioning;
--error ER_VERS_ALTER_SYSTEM_FIELD
alter table t change column row_start asdf timestamp(6);
insert into t values (1);
--error ER_VERS_ALTER_SYSTEM_FIELD
alter table t modify column row_start bigint unsigned;

## These experimental options are now disabled

--error ER_WRONG_VALUE_FOR_VAR
set system_versioning_alter_history= SURVIVE;

--error ER_WRONG_VALUE_FOR_VAR
set system_versioning_alter_history= 'DROP';

if (0)
{
create or replace table t (a int) with system versioning engine innodb;
insert into t values (1);
update t set a = 2;
select * from t for system_time all;
alter table t add column b int;
select * from t for system_time all;

create or replace table t (a int) with system versioning engine myisam;
insert into t values (1);
update t set a = 2;
select * from t for system_time all;
alter table t add column b int;
select * from t for system_time all;

create or replace table non_empty (
  a int,
  row_start bigint(20) unsigned,
  row_end bigint(20) unsigned
) engine innodb;
insert into non_empty values (1, 100, 200);

--error ER_UNSUPPORTED_ACTION_ON_GENERATED_COLUMN
alter table non_empty
  change column row_start row_start bigint(20) unsigned as row start invisible;
--error ER_UNSUPPORTED_ACTION_ON_GENERATED_COLUMN
alter table non_empty
  change column row_end row_end bigint(20) unsigned as row end invisible;
drop table non_empty;

create or replace table t (a int primary key) with system versioning;
insert into t values (1);
update t set a=2;
alter table t drop primary key, add primary key (a), drop system versioning;
select * from t;
--replace_result InnoDB INNODB_OR_MYISAM MyISAM INNODB_OR_MYISAM
show create table t;

create or replace table t (a int primary key) with system versioning;
insert into t values (1);
update t set a=2;
alter table t drop system versioning;
select * from t;
--replace_result InnoDB INNODB_OR_MYISAM MyISAM INNODB_OR_MYISAM
show create table t;


call verify_trt;
}

create or replace table t (a int) with system versioning;
--error ER_VERS_ALREADY_VERSIONED
alter table t add system versioning;
--error ER_VERS_ALREADY_VERSIONED
alter table t add system versioning, drop system versioning;

set @@system_versioning_alter_history=keep;
create or replace table t(x int, y int) with system versioning engine=innodb;
alter table t modify y int without system versioning;
insert into t values(1, 1);
update t set y=2;

--echo # MDEV-14681 Bogus ER_UNSUPPORTED_EXTENSION
create or replace table t1 (pk int auto_increment unique) with system versioning;
insert into t1 values (1);
delete from t1;
alter table t1 engine=myisam;

--echo # MDEV-14692 crash in MDL_context::upgrade_shared_lock()
create or replace temporary table t (a int);
--error ER_VERS_TEMPORARY
alter table t change column if exists b c bigint unsigned generated always as row start;
--error ER_VERS_TEMPORARY
alter table t change column if exists b c bigint unsigned generated always as row end;
--error ER_VERS_TEMPORARY
alter table t add system versioning;
drop table t;

--echo # MDEV-14744 trx_id-based and transaction-based mixup in assertion
create or replace table t (c text) engine=innodb with system versioning;
show create table t;
alter table t add fulltext key (c);

create or replace table t (a int) with system versioning;
--error ER_VERS_TABLE_MUST_HAVE_COLUMNS
alter table t drop column a;
--error ER_CANT_DROP_FIELD_OR_KEY
alter table t drop column a, drop column a;

create or replace table t1 (row_start int);
--error ER_DUP_FIELDNAME
alter table t1 with system versioning;

create or replace table t1 (row_end int);
--error ER_DUP_FIELDNAME
alter table t1 with system versioning;

--error ER_DUP_FIELDNAME
create or replace table t1 (a int, row_start int) with system versioning;

create or replace table t1 (a int) with system versioning;

--error ER_DUP_FIELDNAME
set statement system_versioning_alter_history=keep for
alter table t1 add column row_start int;

--error ER_DUP_FIELDNAME
set statement system_versioning_alter_history=keep for
alter table t1 add column row_start timestamp(6);

--echo # MDEV-14798 Add, drop system versioning semantic and syntax
create or replace table t (
  a int,
  row_start timestamp(6) generated always as row start,
  row_end timestamp(6) generated always as row end,
  period for system_time(row_start, row_end)
) with system versioning;
show create table t;

alter table t
  drop column row_start,
  drop column row_end,
  drop period for system_time,
  drop system versioning;
show create table t;

--error ER_VERS_NOT_VERSIONED
alter table t drop period for system_time;

create or replace table t (
  a int,
  row_start timestamp(6) generated always as row start,
  row_end timestamp(6) generated always as row end,
  period for system_time(row_start, row_end)
) with system versioning;
--error ER_MISSING
alter table t drop period for system_time;
--error ER_MISSING
alter table t drop column sys_trx_start, drop period for system_time;
--error ER_MISSING
alter table t drop column sys_trx_end, drop period for system_time;

--error ER_VERS_ALREADY_VERSIONED
alter table t add period for system_time(sys_trx_start, sys_trx_end);

--echo #
--echo # MDEV-14790 System versioning for system tables does not work as expected
--echo #
use mysql;
--error ER_VERS_DB_NOT_SUPPORTED
create or replace table t (x int) with system versioning;
--error ER_VERS_DB_NOT_SUPPORTED
alter table db add system versioning;
use test;

--echo # MDEV-15956 Strange ER_UNSUPPORTED_ACTION_ON_GENERATED_COLUMN upon ALTER on versioning column
create or replace table t1 (i int, j int as (i), s timestamp(6) as row start, e timestamp(6) as row end, period for system_time(s,e)) with system versioning;
--error ER_VERS_ALTER_SYSTEM_FIELD
alter table t1 modify s timestamp(6) as row start;

--echo # ignore CHECK for historical rows
create or replace table t (a int) with system versioning;
insert into t values (0), (1);
delete from t where a = 0;
--error ER_CONSTRAINT_FAILED
alter table t add check (a > 1);
alter table t add check (a > 0);
--error ER_CONSTRAINT_FAILED
insert into t values (0);
insert into t values (2);

--echo #
--echo # MDEV-18869 Assertion `!((field)->vcol_info && (field)->stored_in_db())' failed in innodb_col_no upon altering table with system versioning
--echo #
set system_versioning_alter_history= keep;
create or replace table t1 (a int, b int generated always as (0) stored) engine=innodb with system versioning;
insert into t1 (a) values (1);
--enable_info
alter table t1 modify a int without system versioning, algorithm=copy;
alter table t1 modify a int with system versioning, algorithm=copy;
alter table t1 modify a int without system versioning;
alter table t1 modify a int with system versioning;
--disable_info
show create table t1;
select * from t1;
--enable_info
--error ER_PARSE_ERROR
alter table t1 modify b int generated always as (0) stored without system versioning;
--error ER_PARSE_ERROR
alter table t1 modify b int generated always as (0) stored with system versioning;
alter table t1 modify b int without system versioning;
--disable_info
show create table t1;
select * from t1;

create or replace table t1 (a int, b int generated always as (0) virtual) engine=innodb with system versioning;
insert into t1 (a) values (1);
--enable_info
alter table t1 modify a int without system versioning, algorithm=copy;
alter table t1 modify a int with system versioning, algorithm=copy;
alter table t1 modify a int without system versioning;
alter table t1 modify a int with system versioning;
select * from t1;
--disable_info

drop database test;
create database test;