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MDEV-15980 FOR SYSTEM_TIME BETWEEN and FROM .. TO work with negative intervals

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Fixed by using exactly the same filtering conditions as specified by standard
in 7.6 <table reference> General Rules
This commit is contained in:
Eugene Kosov
2018-04-27 18:09:05 +03:00
committed by Sergei Golubchik
parent b1e75d290e
commit f08b8fd58d
3 changed files with 70 additions and 20 deletions
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24
mysql-test/suite/versioning/r/select.result
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@ -512,6 +512,30 @@ Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1` from `test`.`t1` FOR SYSTEM_TIME ALL join `test`.`t2` left join (`test`.`t3` left join `test`.`t4` FOR SYSTEM_TIME ALL on(`test`.`t4`.`f4` = `test`.`t2`.`f2` and `test`.`t4`.`row_end` = TIMESTAMP'2038-01-19 03:14:07.999999')) on(`test`.`t3`.`f3` = `test`.`t2`.`f2`) where `test`.`t1`.`row_end` = TIMESTAMP'2038-01-19 03:14:07.999999'
drop view v1;
drop table t1, t2, t3, t4;
#
# MDEV-15980 FOR SYSTEM_TIME BETWEEN and FROM .. TO work with negative intervals
#
create or replace table t1 (
a int,
row_start SYS_DATATYPE as row start invisible,
row_end SYS_DATATYPE as row end invisible,
period for system_time (row_start, row_end)
) with system versioning;
insert into t1 values (1);
delete from t1;
select row_start from t1 for system_time all into @t1;
select row_end from t1 for system_time all into @t2;
select * from t1 for system_time between @t1 and @t2;
a
1
select * from t1 for system_time between @t2 and @t1;
a
select * from t1 for system_time from @t1 to @t2;
a
1
select * from t1 for system_time from @t2 to @t1;
a
drop table t1;
call verify_trt_dummy(34);
No A B C D
1 1 1 1 1