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mirror of https://github.com/MariaDB/server.git synced 2025-07-27 18:02:13 +03:00

SQL: truncate syntax and privilege [closes #229]

This commit is contained in:
Eugene Kosov
2017-09-08 10:22:24 +03:00
committed by GitHub
parent 904b69cd9e
commit a49239b57a
46 changed files with 378 additions and 448 deletions

View File

@ -1,173 +1,37 @@
create table t (a int);
truncate t for system_time all;
truncate t to system_time now();
ERROR HY000: System Versioning required: t
create procedure truncate_history_of_t()
begin
prepare stmt from 'truncate t for system_time between \'1-1-1\' and now(6)';
execute stmt;
drop prepare stmt;
end~~
create or replace table t (a int) with system versioning;
insert into t values (1);
update t set a=2;
select * from t for system_time all;
a
2
1
set @test = 'correct';
create trigger trg_before before delete on t for each row set @test = 'incorrect';
create trigger trg_after after delete on t for each row set @test = 'incorrect';
truncate t for system_time all;
select * from t for system_time all;
a
2
truncate t to system_time now(6);
select @test from t;
@test
correct
drop trigger trg_before;
drop trigger trg_after;
update t set a=3;
update t set a=4;
truncate t for system_time as of timestamp now(6);
select * from t for system_time all;
a
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2
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truncate t for system_time between '1-1-1' and now(6);
select * from t for system_time all;
a
4
update t set a=5;
truncate t for system_time from '1-1-1' to now(6);
select * from t for system_time all;
a
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update t set a=6;
call truncate_history_of_t();
select * from t for system_time all;
a
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set @ts1 = now(6);
update t set a=7;
set @ts2 = now(6);
update t set a=8;
truncate t for system_time from '1-1-1' to @ts1;
select * from t for system_time all;
a
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update t set a=9;
truncate t for system_time between '1-1-1' and @ts2;
select * from t for system_time all;
a
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create or replace table t (a int) with system versioning engine=innodb;
insert into t values (1);
update t set a=2;
select * from t for system_time all;
a
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1
truncate t for system_time all;
select * from t for system_time all;
a
2
update t set a=3;
update t set a=4;
truncate t for system_time as of timestamp now(6);
select * from t for system_time all;
a
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2
3
truncate t for system_time between '1-1-1' and now(6);
select * from t for system_time all;
a
4
update t set a=5;
truncate t for system_time from '1-1-1' to now(6);
select * from t for system_time all;
a
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update t set a=6;
call truncate_history_of_t();
select * from t for system_time all;
a
6
set @ts1 = now(6);
update t set a=7;
set @ts2 = now(6);
update t set a=8;
truncate t for system_time from '1-1-1' to timestamp @ts1;
select * from t for system_time all;
a
8
7
update t set a=9;
truncate t for system_time between '1-1-1' and timestamp @ts2;
select * from t for system_time all;
a
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8
create or replace table t (a int) with system versioning;
insert into t values (1), (2);
update t set a=11 where a=1;
set @ts1=now(6);
update t set a=22 where a=2;
select * from t for system_time all;
a
11
22
1
2
select * from t for system_time before timestamp @ts1;
a
1
truncate t for system_time before timestamp @ts1;
select * from t for system_time all;
a
11
22
2
truncate t for system_time before timestamp now(6);
select * from t for system_time all;
a
11
22
create or replace table t (a int) with system versioning engine=innodb;
insert into t values (1), (2);
update t set a=11 where a=1;
set @ts1=now(6);
update t set a=22 where a=2;
select * from t for system_time all;
a
11
22
1
2
select * from t for system_time before timestamp @ts1;
a
1
insert into t values (33);
select max(sys_trx_start + 0) from t into @tx;
select * from t for system_time before transaction @tx;
a
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2
truncate t for system_time before timestamp @ts1;
select * from t for system_time all;
a
11
22
2
33
truncate t for system_time before timestamp now(6);
select * from t for system_time all;
a
11
22
33
drop table t;
drop procedure truncate_history_of_t;
create table t (a int) with system versioning;
insert into t values (1), (2);
update t set a=11 where a=1;
set @ts1=now(6);
update t set a=22 where a=2;
select * from t for system_time all;
a
11
22
1
2
truncate t to system_time timestamp @ts1;
select * from t for system_time all;
a
11
22
2
truncate table t to system_time timestamp now(6);
select * from t for system_time all;
a
11
22
drop table t;