don't allow TIMESTAMP(6) versioning and FK with CASCADE or SET NULL

mysql-test/suite/versioning/r/foreign,trx_id.rdiff

+--- suite/versioning/r/foreign.result
++++ suite/versioning/r/foreign,trx_id.reject
+@@ -6,8 +6,8 @@
+ ) engine innodb;
+ create table child(
+ parent_id int,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end),
+ foreign key(parent_id) references parent(id)
+ on delete restrict
+@@ -39,8 +39,8 @@
+ ) engine innodb;
+ create table child(
+ parent_id int(10) unsigned primary key,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end),
+ foreign key(parent_id) references parent(id)
+ ) engine innodb with system versioning;
+@@ -58,19 +58,39 @@
+ ) engine innodb;
+ create table child(
+ parent_id int,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end),
+ foreign key(parent_id) references parent(id)
+ on delete cascade
+ on update cascade
+ ) engine innodb with system versioning;
+-ERROR HY000: CASCADE is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
++insert into parent values(1);
++insert into child values(1);
++delete from parent where id = 1;
++delete from child where parent_id = 1;
++delete from parent where id = 1;
++select * from child;
++parent_id
++select * from child for system_time all;
++parent_id
++1
++insert into parent values(1);
++insert into child values(1);
++update parent set id = id + 1;
++select * from child;
++parent_id
++2
++select * from child for system_time all;
++parent_id
++1
++2
++drop table child;
+ drop table parent;
+ create or replace table parent (
+ id int primary key,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end)
+ ) with system versioning
+ engine innodb;
+@@ -97,8 +117,8 @@
+ create or replace table child (
+ id int primary key,
+ parent_id int not null,
+-row_start timestamp(6) as row start invisible,
+-row_end timestamp(6) as row end invisible,
++row_start bigint(20) unsigned as row start invisible,
++row_end bigint(20) unsigned as row end invisible,
+ period for system_time(row_start, row_end),
+ constraint `parent-fk`
+   foreign key (parent_id) references parent (id)
+@@ -106,7 +126,18 @@
+ on update restrict
+ ) with system versioning
+ engine innodb;
+-ERROR HY000: CASCADE is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
++insert into parent (id) values (3);
++insert into child (id, parent_id) values (3, 3);
++## FIXME: #415 update of foreign constraints is disabled
++delete from child;
++## FIXME END
++delete from parent;
++select * from child;
++id	parent_id
++select *, row_start < row_end, row_end < MAXVAL from child for system_time all;
++id	parent_id	row_start < row_end	row_end < MAXVAL
++3	3	1	1
++drop table child;
+ drop table parent;
+ #################
+ # Test SET NULL #
+@@ -116,22 +147,39 @@
+ ) engine innodb;
+ create table child(
+ parent_id int,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end),
+ foreign key(parent_id) references parent(id)
+ on delete set null
+ on update set null
+ ) engine innodb with system versioning;
+-ERROR HY000: SET NULL is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
++insert into parent values(1);
++insert into child values(1);
++delete from child;
++insert into child values(1);
++## FIXME: #415 update of foreign constraints is disabled
++delete from child where parent_id = 1;
++## FIXME END
++delete from parent where id = 1;
++select * from child;
++parent_id
++select * from child for system_time from timestamp 0 to timestamp now(6);
++parent_id
++1
++1
++delete from child;
++insert into parent values(1);
++insert into child values(1);
++drop table child;
+ drop table parent;
+ ###########################
+ # Parent table is foreign #
+ ###########################
+ create or replace table parent(
+ id int unique key,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end)
+ ) engine innodb with system versioning;
+ create or replace table child(
+@@ -162,16 +210,16 @@
+ create or replace table a (
+ cola int(10) primary key,
+ v_cola int(10) as (cola mod 10) virtual,
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end)
+ ) engine=innodb with system versioning;
+ create index v_cola on a (v_cola);
+ create or replace table b(
+ cola int(10),
+ v_cola int(10),
+-sys_start timestamp(6) as row start invisible,
+-sys_end timestamp(6) as row end invisible,
++sys_start bigint(20) unsigned as row start invisible,
++sys_end bigint(20) unsigned as row end invisible,
+ period for system_time(sys_start, sys_end)
+ ) engine=innodb with system versioning;
+ alter table b add constraint `v_cola_fk`

mysql-test/suite/versioning/r/foreign.result

@@ -6,8 +6,8 @@ id int unique key
 ) engine innodb;
 create table child(
 parent_id int,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end),
 foreign key(parent_id) references parent(id)
 on delete restrict
@@ -39,8 +39,8 @@ id int(10) unsigned unique key
 ) engine innodb;
 create table child(
 parent_id int(10) unsigned primary key,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end),
 foreign key(parent_id) references parent(id)
 ) engine innodb with system versioning;
@@ -58,43 +58,19 @@ id int unique key
 ) engine innodb;
 create table child(
 parent_id int,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end),
 foreign key(parent_id) references parent(id)
 on delete cascade
 on update cascade
 ) engine innodb with system versioning;
-insert into parent values(1);
-insert into child values(1);
-## FIXME: #415 update of foreign constraints is disabled
-call mtr.add_suppression("foreign key constraints in timestamp-based temporal table");
-delete from parent where id = 1;
-ERROR 42000: Table 'parent' uses an extension that doesn't exist in this MariaDB version
-delete from child where parent_id = 1;
-## FIXME END
-delete from parent where id = 1;
-select * from child;
-parent_id
-select * from child for system_time all;
-parent_id
-1
-insert into parent values(1);
-insert into child values(1);
-update parent set id = id + 1;
-select * from child;
-parent_id
-2
-select * from child for system_time all;
-parent_id
-1
-2
-drop table child;
+ERROR HY000: CASCADE is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
 drop table parent;
 create or replace table parent (
 id int primary key,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end)
 ) with system versioning
 engine innodb;
@@ -121,8 +97,8 @@ engine innodb;
 create or replace table child (
 id int primary key,
 parent_id int not null,
-row_start SYS_DATATYPE as row start invisible,
-row_end SYS_DATATYPE as row end invisible,
+row_start timestamp(6) as row start invisible,
+row_end timestamp(6) as row end invisible,
 period for system_time(row_start, row_end),
 constraint `parent-fk`
   foreign key (parent_id) references parent (id)
@@ -130,18 +106,7 @@ on delete cascade
 on update restrict
 ) with system versioning
 engine innodb;
-insert into parent (id) values (3);
-insert into child (id, parent_id) values (3, 3);
-## FIXME: #415 update of foreign constraints is disabled
-delete from child;
-## FIXME END
-delete from parent;
-select * from child;
-id	parent_id
-select *, row_start < row_end, row_end < MAXVAL from child for system_time all;
-id	parent_id	row_start < row_end	row_end < MAXVAL
-3	3	1	1
-drop table child;
+ERROR HY000: CASCADE is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
 drop table parent;
 #################
 # Test SET NULL #
@@ -151,39 +116,22 @@ id int unique key
 ) engine innodb;
 create table child(
 parent_id int,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end),
 foreign key(parent_id) references parent(id)
 on delete set null
 on update set null
 ) engine innodb with system versioning;
-insert into parent values(1);
-insert into child values(1);
-delete from child;
-insert into child values(1);
-## FIXME: #415 update of foreign constraints is disabled
-delete from child where parent_id = 1;
-## FIXME END
-delete from parent where id = 1;
-select * from child;
-parent_id
-select * from child for system_time from timestamp 0 to timestamp now(6);
-parent_id
-1
-1
-delete from child;
-insert into parent values(1);
-insert into child values(1);
-drop table child;
+ERROR HY000: SET NULL is not supported for TIMESTAMP(6) AS ROW START/END system-versioned tables
 drop table parent;
 ###########################
 # Parent table is foreign #
 ###########################
 create or replace table parent(
 id int unique key,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end)
 ) engine innodb with system versioning;
 create or replace table child(
@@ -214,16 +162,16 @@ drop table parent;
 create or replace table a (
 cola int(10) primary key,
 v_cola int(10) as (cola mod 10) virtual,
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end)
 ) engine=innodb with system versioning;
 create index v_cola on a (v_cola);
 create or replace table b(
 cola int(10),
 v_cola int(10),
-sys_start SYS_DATATYPE as row start invisible,
-sys_end SYS_DATATYPE as row end invisible,
+sys_start timestamp(6) as row start invisible,
+sys_end timestamp(6) as row end invisible,
 period for system_time(sys_start, sys_end)
 ) engine=innodb with system versioning;
 alter table b add constraint `v_cola_fk`

mysql-test/suite/versioning/r/simple.result

@@ -11,7 +11,7 @@ name varchar(100),
 salary int(10),
 constraint `dept-emp-fk`
     foreign key (dept_id) references dept (dept_id)
-on delete cascade
+on delete restrict
 on update restrict
 ) 
 with system versioning;

mysql-test/suite/versioning/t/foreign.test

@@ -8,7 +8,6 @@ create table parent(
   id int unique key
 ) engine innodb;
 
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create table child(
   parent_id int,
   sys_start $sys_datatype_expl as row start invisible,
@@ -46,7 +45,6 @@ create table parent(
   id int(10) unsigned unique key
 ) engine innodb;
 
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create table child(
   parent_id int(10) unsigned primary key,
   sys_start $sys_datatype_expl as row start invisible,
@@ -72,7 +70,7 @@ create table parent(
   id int unique key
 ) engine innodb;
 
---replace_result $sys_datatype_expl SYS_DATATYPE
+--disable_abort_on_error
 eval create table child(
   parent_id int,
   sys_start $sys_datatype_expl as row start invisible,
@@ -82,16 +80,14 @@ eval create table child(
     on delete cascade
     on update cascade
 ) engine innodb with system versioning;
+--enable_abort_on_error
 
+if ($MTR_COMBINATION_TRX_ID) {
 insert into parent values(1);
 insert into child values(1);
 
---echo ## FIXME: #415 update of foreign constraints is disabled
-call mtr.add_suppression("foreign key constraints in timestamp-based temporal table");
---error ER_UNSUPPORTED_EXTENSION
 delete from parent where id = 1;
 delete from child where parent_id = 1;
---echo ## FIXME END
 delete from parent where id = 1;
 select * from child;
 select * from child for system_time all;
@@ -103,9 +99,8 @@ select * from child;
 select * from child for system_time all;
 
 drop table child;
+}
 drop table parent;
-
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create or replace table parent (
   id int primary key,
   sys_start $sys_datatype_expl as row start invisible,
@@ -137,7 +132,7 @@ create or replace table parent (
 )
 engine innodb;
 
---replace_result $sys_datatype_expl SYS_DATATYPE
+--disable_abort_on_error
 eval create or replace table child (
   id int primary key,
   parent_id int not null,
@@ -150,7 +145,9 @@ eval create or replace table child (
       on update restrict
 ) with system versioning
 engine innodb;
+--enable_abort_on_error
 
+if ($MTR_COMBINATION_TRX_ID) {
 insert into parent (id) values (3);
 insert into child (id, parent_id) values (3, 3);
 --echo ## FIXME: #415 update of foreign constraints is disabled
@@ -162,6 +159,7 @@ select * from child;
 eval select *, row_start < row_end, row_end < $sys_datatype_max from child for system_time all;
 
 drop table child;
+}
 drop table parent;
 
 --echo #################
@@ -172,7 +170,7 @@ create table parent(
   id int unique key
 ) engine innodb;
 
---replace_result $sys_datatype_expl SYS_DATATYPE
+--disable_abort_on_error
 eval create table child(
   parent_id int,
   sys_start $sys_datatype_expl as row start invisible,
@@ -182,7 +180,9 @@ eval create table child(
     on delete set null
     on update set null
 ) engine innodb with system versioning;
+--enable_abort_on_error
 
+if ($MTR_COMBINATION_TRX_ID) {
 insert into parent values(1);
 insert into child values(1);
 delete from child;
@@ -208,13 +208,13 @@ select * from child for system_time from timestamp 0 to timestamp now(6);
 ## FIXME END
 
 drop table child;
+}
 drop table parent;
 
 --echo ###########################
 --echo # Parent table is foreign #
 --echo ###########################
 
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create or replace table parent(
   id int unique key,
   sys_start $sys_datatype_expl as row start invisible,
@@ -254,7 +254,6 @@ drop table parent;
 --echo # crash on DELETE #
 --echo ###################
 
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create or replace table a (
   cola int(10) primary key,
   v_cola int(10) as (cola mod 10) virtual,
@@ -265,7 +264,6 @@ eval create or replace table a (
 
 create index v_cola on a (v_cola);
 
---replace_result $sys_datatype_expl SYS_DATATYPE
 eval create or replace table b(
   cola int(10),
   v_cola int(10),

mysql-test/suite/versioning/t/simple.test

@@ -13,7 +13,7 @@ create or replace table emp (
   salary int(10),
   constraint `dept-emp-fk`
     foreign key (dept_id) references dept (dept_id)
-		on delete cascade
+		on delete restrict
 		on update restrict
 ) 
 with system versioning;

sql/handler.cc

@@ -7343,15 +7343,13 @@ bool Vers_parse_info::check_with_conditions(const char *table_name) const
 }
 
 bool Vers_parse_info::check_sys_fields(const char *table_name,
-                                       Alter_info *alter_info,
-                                       bool native) const
+                                       Alter_info *alter_info, bool native)
 {
   List_iterator<Create_field> it(alter_info->create_list);
-  vers_sys_type_t found= VERS_UNDEFINED;
   uint found_flag= 0;
   while (Create_field *f= it++)
   {
-    vers_sys_type_t check_unit= VERS_UNDEFINED;
+    vers_sys_type_t f_check_unit= VERS_UNDEFINED;
     uint sys_flag= f->flags & VERS_SYSTEM_FIELD;
 
     if (!sys_flag)
@@ -7371,29 +7369,29 @@ bool Vers_parse_info::check_sys_fields(const char *table_name,
           f->type_handler() == &type_handler_timestamp2) &&
         f->length == MAX_DATETIME_FULL_WIDTH)
     {
-      check_unit= VERS_TIMESTAMP;
+      f_check_unit= VERS_TIMESTAMP;
     }
     else if (native
       && f->type_handler() == &type_handler_longlong
       && (f->flags & UNSIGNED_FLAG)
       && f->length == (MY_INT64_NUM_DECIMAL_DIGITS - 1))
     {
-      check_unit= VERS_TRX_ID;
+      f_check_unit= VERS_TRX_ID;
     }
     else
     {
-      if (!found)
-        found= VERS_TIMESTAMP;
+      if (!check_unit)
+        check_unit= VERS_TIMESTAMP;
       goto error;
     }
 
-    if (check_unit)
+    if (f_check_unit)
     {
-      if (found)
+      if (check_unit)
       {
-        if (found == check_unit)
+        if (check_unit == f_check_unit)
         {
-          if (found == VERS_TRX_ID && !TR_table::use_transaction_registry)
+          if (check_unit == VERS_TRX_ID && !TR_table::use_transaction_registry)
           {
             my_error(ER_VERS_TRT_IS_DISABLED, MYF(0));
             return true;
@@ -7402,13 +7400,13 @@ bool Vers_parse_info::check_sys_fields(const char *table_name,
         }
       error:
         my_error(ER_VERS_FIELD_WRONG_TYPE, MYF(0), f->field_name.str,
-                 found == VERS_TIMESTAMP ?
+                 check_unit == VERS_TIMESTAMP ?
                  "TIMESTAMP(6)" :
                  "BIGINT(20) UNSIGNED",
                  table_name);
         return true;
       }
-      found= check_unit;
+      check_unit= f_check_unit;
     }
   }
 

sql/handler.h

@@ -1722,9 +1722,17 @@ struct Schema_specification_st
 
 class Create_field;
 
+enum vers_sys_type_t
+{
+  VERS_UNDEFINED= 0,
+  VERS_TIMESTAMP,
+  VERS_TRX_ID
+};
+
 struct Vers_parse_info
 {
   Vers_parse_info() :
+    check_unit(VERS_UNDEFINED),
     versioned_fields(false),
     unversioned_fields(false)
   {}
@@ -1742,6 +1750,7 @@ struct Vers_parse_info
 
   start_end_t system_time;
   start_end_t as_row;
+  vers_sys_type_t check_unit;
 
   void set_system_time(LString start, LString end)
   {
@@ -1773,7 +1782,7 @@ struct Vers_parse_info
   bool need_check(const Alter_info *alter_info) const;
   bool check_with_conditions(const char *table_name) const;
   bool check_sys_fields(const char *table_name, Alter_info *alter_info,
-                        bool native) const;
+                        bool native);
 
 public:
   static const LString default_start;

sql/sql_table.cc

@@ -4469,6 +4469,19 @@ static bool vers_prepare_keys(THD *thd, HA_CREATE_INFO *create_info,
   Key *key= NULL;
   while ((key=key_it++))
   {
+    if (key->type == Key::FOREIGN_KEY &&
+        create_info->vers_info.check_unit == VERS_TIMESTAMP)
+    {
+      Foreign_key *fk_key= (Foreign_key*) key;
+      enum enum_fk_option op;
+      if (fk_modifies_child(op=fk_key->update_opt) ||
+          fk_modifies_child(op=fk_key->delete_opt))
+      {
+        my_error(ER_VERS_NOT_SUPPORTED, MYF(0), fk_option_name(op)->str,
+                 "TIMESTAMP(6) AS ROW START/END");
+        return true;
+      }
+    }
     if (key->type != Key::PRIMARY && key->type != Key::UNIQUE)
       continue;
 

sql/table.h

@@ -575,13 +575,6 @@ struct TABLE_STATISTICS_CB
   bool histograms_are_read;   
 };
 
-enum vers_sys_type_t
-{
-  VERS_UNDEFINED= 0,
-  VERS_TIMESTAMP,
-  VERS_TRX_ID
-};
-
 /**
   This structure is shared between different table objects. There is one
   instance of table share per one table in the database.

storage/innobase/row/row0mysql.cc

@@ -2199,14 +2199,6 @@ row_update_cascade_for_mysql(
 				  && (node->is_delete == PLAIN_DELETE
 				      || node->update->affects_versioned());
 
-	if (vers_set_fields && !thr->prebuilt->versioned_write)
-	{
-		// FIXME: timestamp-based update of row_end in run_again
-		trx->error_state = DB_UNSUPPORTED;
-		thr->fk_cascade_depth = 0;
-		return trx->error_state;
-	}
-
 	for (;;) {
 		if (vers_set_fields) {
 			// FIXME: code duplication with row_update_for_mysql()