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rename system_time columns

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sys_trx_start -> row_start
sys_trx_end -> row_end
This commit is contained in:
Sergei Golubchik
2018-01-08 18:03:55 +01:00
committed by Aleksey Midenkov
parent cf1e5bef59
commit b85efdc3af
32 changed files with 223 additions and 223 deletions
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24
mysql-test/suite/versioning/r/derived.result
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@ -43,10 +43,10 @@ execute stmt;
emp_id name mgr
4 john 1
drop prepare stmt;
select emp_id from (select emp_id from emp where sys_trx_end>'2031-1-1') as tmp;
select emp_id from (select emp_id from emp where row_end>'2031-1-1') as tmp;
emp_id
4
set @tmp= "select emp_id from (select emp_id from emp where sys_trx_end>'2031-1-1') as tmp";
set @tmp= "select emp_id from (select emp_id from emp where row_end>'2031-1-1') as tmp";
prepare stmt from @tmp;
execute stmt;
emp_id
@ -134,11 +134,11 @@ set @t0= now(6);
delete from t1;
insert into t1 values (2);
insert into t2 values (10);
select * from (select *, t1.sys_trx_end, t1.sys_trx_end as endo from t1) as s0;
x sys_trx_end endo
select * from (select *, t1.row_end, t1.row_end as endo from t1) as s0;
x row_end endo
2 # #
select * from (select *, t1.sys_trx_end, t2.sys_trx_start from t1, t2) as s0;
x y sys_trx_end sys_trx_start
select * from (select *, t1.row_end, t2.row_start from t1, t2) as s0;
x y row_end row_start
2 10 # #
# SYSTEM_TIME propagation from inner to outer
select * from (select * from t1 for system_time as of timestamp @t0, t2) as s0;
@ -148,11 +148,11 @@ with s1 as (select * from t1 for system_time as of timestamp @t0, t2) select * f
x y
1 10
# leading table selection
select * from (select *, t1.sys_trx_end from t2, t1 for system_time as of timestamp @t0) as s2;
y x sys_trx_end
select * from (select *, t1.row_end from t2, t1 for system_time as of timestamp @t0) as s2;
y x row_end
10 1 #
with s3 as (select *, t1.sys_trx_end from t2, t1 for system_time as of timestamp @t0) select * from s3;
y x sys_trx_end
with s3 as (select *, t1.row_end from t2, t1 for system_time as of timestamp @t0) select * from s3;
y x row_end
10 1 #
### VIEW instead of t1
set @q= concat("create view vt1 as select * from t1 for system_time as of timestamp '", @t0, "'");
@ -211,12 +211,12 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join)
Query A:
Note 1003 select `test`.`t1`.`x` AS `x`,`test`.`t1`.`y` AS `y1`,`test`.`t2`.`x` AS `x2`,`test`.`t2`.`y` AS `y2` from `test`.`t1` FOR SYSTEM_TIME ALL join `test`.`t2` FOR SYSTEM_TIME ALL where `test`.`t1`.`x` = `test`.`t2`.`x` and `test`.`t1`.`sys_trx_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t1`.`sys_trx_start` <= <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`sys_trx_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`sys_trx_start` <= <cache>(cast(current_timestamp(6) as datetime(6)))
Note 1003 select `test`.`t1`.`x` AS `x`,`test`.`t1`.`y` AS `y1`,`test`.`t2`.`x` AS `x2`,`test`.`t2`.`y` AS `y2` from `test`.`t1` FOR SYSTEM_TIME ALL join `test`.`t2` FOR SYSTEM_TIME ALL where `test`.`t1`.`x` = `test`.`t2`.`x` and `test`.`t1`.`row_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t1`.`row_start` <= <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`row_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`row_start` <= <cache>(cast(current_timestamp(6) as datetime(6)))
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join)
Query B:
Note 1003 select `test`.`t1`.`x` AS `x`,`test`.`t1`.`y` AS `y1`,`test`.`t2`.`x` AS `x2`,`test`.`t2`.`y` AS `y2` from `test`.`t1` FOR SYSTEM_TIME ALL join `test`.`t2` FOR SYSTEM_TIME ALL where `test`.`t1`.`x` = `test`.`t2`.`x` and `test`.`t1`.`sys_trx_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t1`.`sys_trx_start` <= <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`sys_trx_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`sys_trx_start` <= <cache>(cast(current_timestamp(6) as datetime(6)))
Note 1003 select `test`.`t1`.`x` AS `x`,`test`.`t1`.`y` AS `y1`,`test`.`t2`.`x` AS `x2`,`test`.`t2`.`y` AS `y2` from `test`.`t1` FOR SYSTEM_TIME ALL join `test`.`t2` FOR SYSTEM_TIME ALL where `test`.`t1`.`x` = `test`.`t2`.`x` and `test`.`t1`.`row_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t1`.`row_start` <= <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`row_end` > <cache>(cast(current_timestamp(6) as datetime(6))) and `test`.`t2`.`row_start` <= <cache>(cast(current_timestamp(6) as datetime(6)))
Fine result: queries A and B are equal.
## LEFT JOIN: t1, t2 versioned
select * from (