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112 lines
4.3 KiB
Plaintext
112 lines
4.3 KiB
Plaintext
create or replace table t1 (x int) with system versioning;
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insert into t1 values (1);
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select now(6) into @t1;
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update t1 set x= 2;
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select now(6) into @t2;
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delete from t1;
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set @vt1= concat("create or replace view vt1 as select * from t1 for system_time as of timestamp '", @t1, "'");
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prepare stmt from @vt1;
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execute stmt;
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drop prepare stmt;
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set @vt2= concat("create or replace view vt2 as select *, sys_trx_end from t1 for system_time as of timestamp '", @t2, "'");
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prepare stmt from @vt2;
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execute stmt;
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drop prepare stmt;
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select * from t1;
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x
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create or replace view vt1 as select * from t1;
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show create view vt1;
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View Create View character_set_client collation_connection
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vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`x` AS `x` from `t1` FOR SYSTEM_TIME ALL where `t1`.`sys_trx_end` = MAX_RESULT latin1 latin1_swedish_ci
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drop view vt1;
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drop view vt2;
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create or replace view vt1 as select * from t1 for system_time all;
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select * from vt1;
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x
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2
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1
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prepare stmt from 'select * from vt1';
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execute stmt;
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x
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2
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1
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drop prepare stmt;
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set @str= concat('create or replace view vt1 as
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select * from t1 for system_time as of timestamp "', @t1, '"');
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prepare stmt from @str;
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execute stmt;
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drop prepare stmt;
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select * from t1 for system_time as of timestamp @t1;
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x
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1
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select * from vt1;
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x
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1
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insert into vt1 values (3);
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select * from t1;
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x
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3
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select * from vt1;
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x
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1
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create or replace table t1 (x int) with system versioning;
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insert into t1 values (1), (2);
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set @t1=now(6);
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delete from t1 where x=2;
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set @t2=now(6);
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delete from t1 where x=1;
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set @t3=now(6);
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set @tmp= concat("create or replace view vt1 as select * from t1 for system_time as of timestamp '", @t1, "'");
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prepare stmt from @tmp;
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execute stmt;
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drop prepare stmt;
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select * from vt1;
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x
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1
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2
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# VIEW with parameters [#151]
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create or replace table t1 (x int) with system versioning;
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create or replace view vt1(c) as select x from t1;
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show create view vt1;
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View Create View character_set_client collation_connection
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vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`x` AS `c` from `t1` FOR SYSTEM_TIME ALL where `t1`.`sys_trx_end` = MAX_RESULT latin1 latin1_swedish_ci
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# VIEW over JOIN of versioned tables [#153]
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create or replace table t1 (a int) with system versioning;
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create or replace table t2 (b int) with system versioning;
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insert into t1 values (1);
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insert into t2 values (2);
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create or replace view vt12 as select * from t1 cross join t2;
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select * from vt12;
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a b
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1 2
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create or replace view vt12 as select * from t1 for system_time as of timestamp '0-0-0' cross join t2;
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select * from vt12;
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a b
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# VIEW improvements [#183]
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create or replace table t3 (x int);
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create or replace view vt1 as select * from t1, t2, t3;
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show create view vt1;
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View Create View character_set_client collation_connection
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vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`a` AS `a`,`t2`.`b` AS `b`,`t3`.`x` AS `x` from ((`t1` FOR SYSTEM_TIME ALL join `t2` FOR SYSTEM_TIME ALL) join `t3`) where `t1`.`sys_trx_end` = MAX_RESULT and `t2`.`sys_trx_end` = MAX_RESULT latin1 latin1_swedish_ci
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create or replace view vt1 as select * from t3, t2, t1;
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show create view vt1;
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View Create View character_set_client collation_connection
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vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t3`.`x` AS `x`,`t2`.`b` AS `b`,`t1`.`a` AS `a` from ((`t3` join `t2` FOR SYSTEM_TIME ALL) join `t1` FOR SYSTEM_TIME ALL) where `t2`.`sys_trx_end` = MAX_RESULT and `t1`.`sys_trx_end` = MAX_RESULT latin1 latin1_swedish_ci
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create or replace view vt1 as select a, t2.sys_trx_end as endo from t3, t1, t2;
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show create view vt1;
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View Create View character_set_client collation_connection
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vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`a` AS `a`,`t2`.`sys_trx_end` AS `endo` from ((`t3` join `t1` FOR SYSTEM_TIME ALL) join `t2` FOR SYSTEM_TIME ALL) where `t1`.`sys_trx_end` = MAX_RESULT and `t2`.`sys_trx_end` = MAX_RESULT latin1 latin1_swedish_ci
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# VIEW over UNION [#269]
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create or replace view vt1 as select * from t1 union select * from t1;
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select * from vt1;
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a
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1
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# VIEW over UNION with non-versioned [#393]
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create or replace table t2 (a int);
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create or replace view vt1 as select * from t1 union select * from t2;
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select * from vt1;
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a
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1
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drop database test;
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create database test;
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