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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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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, "'");