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SQL: system_time propagation from derived table [fixes #228]

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This commit is contained in:
Aleksey Midenkov
2017-07-12 10:36:02 +03:00
parent dcb54040bc
commit 60e456df33
6 changed files with 88 additions and 14 deletions
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1
mysql-test/suite/versioning/t/cte_recursive.opt → mysql-test/suite/versioning/t/cte.opt
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@@ -1,2 +1,3 @@
--innodb --default-storage-engine=innodb
--plugin-load=versioning
--versioning-hide=implicit

15
mysql-test/suite/versioning/t/cte_recursive.test → mysql-test/suite/versioning/t/cte.test
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@@ -65,5 +65,20 @@ as
)
select * from ancestors;
create or replace table emp ( emp_id int, name varchar(127), mgr int) with system versioning;
create or replace table addr ( emp_id int, address varchar(100)) with system versioning;
insert emp values (1, 'bill', 0), (2, 'bill', 1), (3, 'kate', 1);
insert addr values (1, 'Moscow'), (2, 'New York'), (3, 'London');
set @ts=now(6);
delete from emp;
delete from addr;
insert emp values (4, 'john', 1);
insert addr values (4, 'Paris');
with ancestors as (select * from emp natural join addr) select * from ancestors;
with ancestors as (select * from emp natural join addr) select * from ancestors for system_time all;
with ancestors as (select * from emp natural join addr query for system_time all) select * from ancestors;
select * from emp natural join addr query for system_time all;
drop table emp;
drop table dept;
drop table addr;

8
mysql-test/suite/versioning/t/derived.test
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@@ -103,10 +103,14 @@ select * from (select *, t1.sys_trx_end, t2.sys_trx_start from t1, t2) as s0;
# system_time propagation from inner to outer
select * from (select * from t1 for system_time as of timestamp @t0, t2) as s0;
with s1 as (select * from t1 for system_time as of timestamp @t0, t2) select * from s1;
# leading table selection
select * from (select *, t1.sys_trx_end from t2, t1 for system_time as of timestamp @t0) as s0;
select * from (select *, t1.sys_trx_end from t2, t1 for system_time as of timestamp @t0) as s2;
with s3 as (select *, t1.sys_trx_end from t2, t1 for system_time as of timestamp @t0) select * from s3;
# system_time propagation from outer to inner
select * from (select *, t1.sys_trx_start from t2 for system_time as of now, t1) as s0 query for system_time as of timestamp @t0;
select * from (select *, t1.sys_trx_start from t2 for system_time as of now, t1) as s4 query for system_time as of timestamp @t0;
with s5 as (select *, t1.sys_trx_start from t2 for system_time as of now, t1) select * from s5 for system_time as of timestamp @t0;
with s6 as (select *, t1.sys_trx_start from t2 for system_time as of now, t1) select * from s6 query for system_time as of timestamp @t0;
# VIEW instead of t1
set @q= concat("create view vt1 as select * from t1 for system_time as of timestamp '", @t0, "'");