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DROP DATABASE would internally execute DROP TABLE on every contained table and finally remove the directory. In InnoDB, DROP TABLE is sometimes executed in the background. The table would be renamed to a name that starts with #sql. The existence of these files would prevent DROP DATABASE from succeeding. CREATE OR REPLACE DATABASE can internally execute DROP DATABASE if the directory already exists. This could fail due to the InnoDB background DROP TABLE, possibly due to some tables that were leftovers from earlier tests.
359 lines
16 KiB
Plaintext
359 lines
16 KiB
Plaintext
create table t (id int, s date, e date, period for apptime(s,e));
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insert into t values(1, '1999-01-01', '2018-12-12');
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insert into t values(1, '1999-01-01', '2017-01-01');
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insert into t values(1, '2017-01-01', '2019-01-01');
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insert into t values(2, '1998-01-01', '2018-12-12');
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insert into t values(3, '1997-01-01', '2015-01-01');
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insert into t values(4, '2016-01-01', '2020-01-01');
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insert into t values(5, '2010-01-01', '2015-01-01');
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create or replace table t1 (id int, s date, e date, period for apptime(s,e));
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insert t1 select * from t;
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create or replace table t2 (id int, s date, e date, period for apptime(s,e));
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insert t2 select * from t;
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create or replace table t3 (id int, s date, e date, period for apptime(s,e));
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insert t3 select * from t;
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t1 before update on t1
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for each row call log(CONCAT('>UPD: ', old.id, ", ", old.s, ", ", old.e, ' -> ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr2upd_t1 after update on t1
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for each row call log(CONCAT('<UPD: ', old.id, ", ", old.s, ", ", old.e, ' -> ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr1del_t1 before delete on t1
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for each row call log(CONCAT('>DEL: ', old.id, ", ", old.s, ", ", old.e));
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create trigger tr2del_t1 after delete on t1
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for each row call log(CONCAT('<DEL: ', old.id, ", ", old.s, ", ", old.e));
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create trigger tr1ins_t1 before insert on t1
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for each row call log(CONCAT('>INS: ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr2ins_t1 after insert on t1
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for each row call log(CONCAT('<INS: ', new.id, ", ", new.s, ", ", new.e));
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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delete from t1 for portion of APPTIME from '2000-01-01' to '2018-01-01';
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select * from t;
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id s e
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1 1999-01-01 2000-01-01
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1 1999-01-01 2000-01-01
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1 2018-01-01 2018-12-12
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1 2018-01-01 2019-01-01
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2 1998-01-01 2000-01-01
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2 2018-01-01 2018-12-12
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3 1997-01-01 2000-01-01
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4 2018-01-01 2020-01-01
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select * from t1;
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id s e
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1 1999-01-01 2000-01-01
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1 1999-01-01 2000-01-01
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1 2018-01-01 2018-12-12
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1 2018-01-01 2019-01-01
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2 1998-01-01 2000-01-01
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2 2018-01-01 2018-12-12
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3 1997-01-01 2000-01-01
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4 2018-01-01 2020-01-01
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select * from log_tbl order by id;
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id log
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1 >DEL: 1, 1999-01-01, 2018-12-12
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2 >INS: 1, 1999-01-01, 2000-01-01
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3 <INS: 1, 1999-01-01, 2000-01-01
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4 >INS: 1, 2018-01-01, 2018-12-12
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5 <INS: 1, 2018-01-01, 2018-12-12
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6 <DEL: 1, 1999-01-01, 2018-12-12
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7 >DEL: 1, 1999-01-01, 2017-01-01
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8 >INS: 1, 1999-01-01, 2000-01-01
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9 <INS: 1, 1999-01-01, 2000-01-01
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10 <DEL: 1, 1999-01-01, 2017-01-01
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11 >DEL: 1, 2017-01-01, 2019-01-01
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12 >INS: 1, 2018-01-01, 2019-01-01
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13 <INS: 1, 2018-01-01, 2019-01-01
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14 <DEL: 1, 2017-01-01, 2019-01-01
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15 >DEL: 2, 1998-01-01, 2018-12-12
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16 >INS: 2, 1998-01-01, 2000-01-01
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17 <INS: 2, 1998-01-01, 2000-01-01
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18 >INS: 2, 2018-01-01, 2018-12-12
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19 <INS: 2, 2018-01-01, 2018-12-12
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20 <DEL: 2, 1998-01-01, 2018-12-12
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21 >DEL: 3, 1997-01-01, 2015-01-01
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22 >INS: 3, 1997-01-01, 2000-01-01
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23 <INS: 3, 1997-01-01, 2000-01-01
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24 <DEL: 3, 1997-01-01, 2015-01-01
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25 >DEL: 4, 2016-01-01, 2020-01-01
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26 >INS: 4, 2018-01-01, 2020-01-01
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27 <INS: 4, 2018-01-01, 2020-01-01
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28 <DEL: 4, 2016-01-01, 2020-01-01
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29 >DEL: 5, 2010-01-01, 2015-01-01
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30 <DEL: 5, 2010-01-01, 2015-01-01
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# INSERT trigger only also works
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t2 before update on t2
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for each row call log(CONCAT('>UPD: ', old.id, ", ", old.s, ", ", old.e, ' -> ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr2upd_t2 after update on t2
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for each row call log(CONCAT('<UPD: ', old.id, ", ", old.s, ", ", old.e, ' -> ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr1del_t2 before delete on t2
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for each row call log(CONCAT('>DEL: ', old.id, ", ", old.s, ", ", old.e));
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create trigger tr2del_t2 after delete on t2
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for each row call log(CONCAT('<DEL: ', old.id, ", ", old.s, ", ", old.e));
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create trigger tr1ins_t2 before insert on t2
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for each row call log(CONCAT('>INS: ', new.id, ", ", new.s, ", ", new.e));
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create trigger tr2ins_t2 after insert on t2
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for each row call log(CONCAT('<INS: ', new.id, ", ", new.s, ", ", new.e));
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drop trigger tr1del_t2;
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drop trigger tr2del_t2;
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delete from t2 for portion of APPTIME from '2000-01-01' to '2018-01-01';
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select * from log_tbl order by id;
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id log
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1 >INS: 1, 1999-01-01, 2000-01-01
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2 <INS: 1, 1999-01-01, 2000-01-01
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3 >INS: 1, 2018-01-01, 2018-12-12
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4 <INS: 1, 2018-01-01, 2018-12-12
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5 >INS: 1, 1999-01-01, 2000-01-01
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6 <INS: 1, 1999-01-01, 2000-01-01
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7 >INS: 1, 2018-01-01, 2019-01-01
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8 <INS: 1, 2018-01-01, 2019-01-01
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9 >INS: 2, 1998-01-01, 2000-01-01
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10 <INS: 2, 1998-01-01, 2000-01-01
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11 >INS: 2, 2018-01-01, 2018-12-12
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12 <INS: 2, 2018-01-01, 2018-12-12
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13 >INS: 3, 1997-01-01, 2000-01-01
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14 <INS: 3, 1997-01-01, 2000-01-01
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15 >INS: 4, 2018-01-01, 2020-01-01
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16 <INS: 4, 2018-01-01, 2020-01-01
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# removing BEFORE INSERT trigger enables internal substitution
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# DELETE+INSERT -> UPDATE, but without any side effects.
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# The optimization is disabled for non-transactional engines
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t3 before update on t3
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for each row call log(CONCAT('>UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr2upd_t3 after update on t3
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for each row call log(CONCAT('<UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr1del_t3 before delete on t3
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for each row call log(CONCAT('>DEL: ', old.s, ", ", old.e));
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create trigger tr2del_t3 after delete on t3
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for each row call log(CONCAT('<DEL: ', old.s, ", ", old.e));
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create trigger tr1ins_t3 before insert on t3
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for each row call log(CONCAT('>INS: ', new.s, ", ", new.e));
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create trigger tr2ins_t3 after insert on t3
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for each row call log(CONCAT('<INS: ', new.s, ", ", new.e));
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drop trigger tr1ins_t3;
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delete from t3 for portion of APPTIME from '2000-01-01' to '2018-01-01';
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select * from log_tbl order by id;
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id log
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1 >DEL: 1999-01-01, 2018-12-12
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2 <INS: 1999-01-01, 2000-01-01
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3 <INS: 2018-01-01, 2018-12-12
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4 <DEL: 1999-01-01, 2018-12-12
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5 >DEL: 1999-01-01, 2017-01-01
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6 <INS: 1999-01-01, 2000-01-01
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7 <DEL: 1999-01-01, 2017-01-01
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8 >DEL: 2017-01-01, 2019-01-01
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9 <INS: 2018-01-01, 2019-01-01
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10 <DEL: 2017-01-01, 2019-01-01
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11 >DEL: 1998-01-01, 2018-12-12
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12 <INS: 1998-01-01, 2000-01-01
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13 <INS: 2018-01-01, 2018-12-12
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14 <DEL: 1998-01-01, 2018-12-12
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15 >DEL: 1997-01-01, 2015-01-01
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16 <INS: 1997-01-01, 2000-01-01
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17 <DEL: 1997-01-01, 2015-01-01
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18 >DEL: 2016-01-01, 2020-01-01
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19 <INS: 2018-01-01, 2020-01-01
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20 <DEL: 2016-01-01, 2020-01-01
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21 >DEL: 2010-01-01, 2015-01-01
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22 <DEL: 2010-01-01, 2015-01-01
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# multi-table DELETE is not possible
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delete t, t1 from t1, t for portion of apptime from '2000-01-01' to '2018-01-01';
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'for portion of apptime from '2000-01-01' to '2018-01-01'' at line 1
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delete t for portion of apptime from '2000-01-01' to '2018-01-01', t1 from t, t1;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'for portion of apptime from '2000-01-01' to '2018-01-01', t1 from t, t1' at line 1
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# Here another check fails before parsing ends
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delete t, t1 from t for portion of apptime from '2000-01-01' to '2018-01-01', t1;
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ERROR 42S02: Unknown table 't1' in MULTI DELETE
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delete history from t2 for portion of apptime from '2000-01-01' to '2018-01-01';
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'for portion of apptime from '2000-01-01' to '2018-01-01'' at line 1
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delete from t for portion of othertime from '2000-01-01' to '2018-01-01';
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ERROR HY000: Period `othertime` is not found in table
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delete from t for portion of system_time from '2000-01-01' to '2018-01-01';
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'of system_time from '2000-01-01' to '2018-01-01'' at line 1
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create or replace table t (id int, str text, s date, e date,
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period for apptime(s,e));
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insert into t values(1, 'data', '1999-01-01', '2018-12-12');
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insert into t values(1, 'other data', '1999-01-01', '2018-12-12');
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insert into t values(1, 'deleted', '2000-01-01', '2018-01-01');
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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show warnings;
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Level Code Message
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select * from t;
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id str s e
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1 data 1999-01-01 2000-01-01
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1 data 2018-01-01 2018-12-12
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1 other data 1999-01-01 2000-01-01
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1 other data 2018-01-01 2018-12-12
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drop table t1;
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# SQL16, Part 2, 15.7 <Effect of deleting rows from base tables>,
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# General rules, 8)b)i)
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# If the column descriptor that corresponds to the i-th field of BR
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# describes an identity column, a generated column, a system-time period
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# start column, or a system-time period end column, then let V i be
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# DEFAULT.
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# auto_increment field is updated
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create or replace table t (id int primary key auto_increment, s date, e date,
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period for apptime(s, e));
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insert into t values (default, '1999-01-01', '2018-12-12');
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select * from t;
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id s e
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1 1999-01-01 2018-12-12
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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select * from t;
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id s e
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2 1999-01-01 2000-01-01
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3 2018-01-01 2018-12-12
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truncate t;
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# same for trigger case
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insert into t values (default, '1999-01-01', '2018-12-12');
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t before update on t
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for each row call log(CONCAT('>UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr2upd_t after update on t
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for each row call log(CONCAT('<UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr1del_t before delete on t
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for each row call log(CONCAT('>DEL: ', old.s, ", ", old.e));
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create trigger tr2del_t after delete on t
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for each row call log(CONCAT('<DEL: ', old.s, ", ", old.e));
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create trigger tr1ins_t before insert on t
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for each row call log(CONCAT('>INS: ', new.s, ", ", new.e));
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create trigger tr2ins_t after insert on t
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for each row call log(CONCAT('<INS: ', new.s, ", ", new.e));
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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select * from t;
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id s e
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2 1999-01-01 2000-01-01
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3 2018-01-01 2018-12-12
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select * from log_tbl order by id;
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id log
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1 >DEL: 1999-01-01, 2018-12-12
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2 >INS: 1999-01-01, 2000-01-01
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3 <INS: 1999-01-01, 2000-01-01
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4 >INS: 2018-01-01, 2018-12-12
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5 <INS: 2018-01-01, 2018-12-12
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6 <DEL: 1999-01-01, 2018-12-12
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# generated columns are updated
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create or replace table t (s date, e date,
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xs date as (s) stored, xe date as (e) stored,
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period for apptime(s, e));
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insert into t values('1999-01-01', '2018-12-12', default, default);
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select * from t;
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s e xs xe
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1999-01-01 2018-12-12 1999-01-01 2018-12-12
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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select * from t;
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s e xs xe
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1999-01-01 2000-01-01 1999-01-01 2000-01-01
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2018-01-01 2018-12-12 2018-01-01 2018-12-12
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truncate t;
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# same for trigger case
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insert into t values('1999-01-01', '2018-12-12', default, default);
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t before update on t
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for each row call log(CONCAT('>UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr2upd_t after update on t
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for each row call log(CONCAT('<UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr1del_t before delete on t
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for each row call log(CONCAT('>DEL: ', old.s, ", ", old.e));
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create trigger tr2del_t after delete on t
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for each row call log(CONCAT('<DEL: ', old.s, ", ", old.e));
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create trigger tr1ins_t before insert on t
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for each row call log(CONCAT('>INS: ', new.s, ", ", new.e));
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create trigger tr2ins_t after insert on t
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for each row call log(CONCAT('<INS: ', new.s, ", ", new.e));
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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select * from t;
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s e xs xe
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1999-01-01 2000-01-01 1999-01-01 2000-01-01
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2018-01-01 2018-12-12 2018-01-01 2018-12-12
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select * from log_tbl order by id;
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id log
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1 >DEL: 1999-01-01, 2018-12-12
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2 >INS: 1999-01-01, 2000-01-01
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3 <INS: 1999-01-01, 2000-01-01
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4 >INS: 2018-01-01, 2018-12-12
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5 <INS: 2018-01-01, 2018-12-12
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6 <DEL: 1999-01-01, 2018-12-12
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# View can't be used
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create or replace view v as select * from t;
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delete from v for portion of p from '2000-01-01' to '2018-01-01';
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ERROR 42S02: 'v' is a view
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# View can't be used
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create or replace view v as select t.* from t, t as t1;
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delete from v for portion of p from '2000-01-01' to '2018-01-01';
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ERROR HY000: Can not delete from join view 'test.v'
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# auto_increment field overflow
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create or replace table t (id tinyint auto_increment primary key,
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s date, e date, period for apptime(s,e));
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insert into t values(127, '1999-01-01', '2018-12-12');
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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ERROR 22003: Out of range value for column 'id' at row 1
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select * from t;
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id s e
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127 1999-01-01 2018-12-12
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# same for trigger case
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create or replace table log_tbl(id int auto_increment primary key, log text) engine=myisam;
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create or replace procedure log(s text)
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insert into log_tbl(log) values(s);
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create trigger tr1upd_t before update on t
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for each row call log(CONCAT('>UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr2upd_t after update on t
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for each row call log(CONCAT('<UPD: ', old.s, ", ", old.e, ' -> ', new.s, ", ", new.e));
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create trigger tr1del_t before delete on t
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for each row call log(CONCAT('>DEL: ', old.s, ", ", old.e));
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create trigger tr2del_t after delete on t
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for each row call log(CONCAT('<DEL: ', old.s, ", ", old.e));
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create trigger tr1ins_t before insert on t
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for each row call log(CONCAT('>INS: ', new.s, ", ", new.e));
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create trigger tr2ins_t after insert on t
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for each row call log(CONCAT('<INS: ', new.s, ", ", new.e));
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# negotiate side effects of non-transactional MyISAM engine
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replace into t values(127, '1999-01-01', '2018-12-12');
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select * from t;
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id s e
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127 1999-01-01 2018-12-12
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truncate table log_tbl;
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delete from t for portion of apptime from '2000-01-01' to '2018-01-01';
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ERROR 22003: Out of range value for column 'id' at row 1
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select * from t;
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id s e
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127 1999-01-01 2018-12-12
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select * from log_tbl order by id;
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id log
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1 >DEL: 1999-01-01, 2018-12-12
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# custom constraint for period fields
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create or replace table t(id int, s date, e date, period for apptime(s,e),
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constraint dist2days check (datediff(e, s) >= 2));
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insert into t values(1, '1999-01-01', '2018-12-12'),
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(2, '1999-01-01', '1999-12-12');
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delete from t for portion of apptime from '1999-01-02' to '2018-12-12';
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ERROR 23000: CONSTRAINT `dist2days` failed for `test`.`t`
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# negotiate side effects of non-transactional MyISAM engine
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truncate t;
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insert into t values(1, '1999-01-01', '2018-12-12'),
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(2, '1999-01-01', '1999-12-12');
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delete from t for portion of apptime from '1999-01-01' to '2018-12-11';
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ERROR 23000: CONSTRAINT `dist2days` failed for `test`.`t`
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truncate t;
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insert into t values(1, '1999-01-01', '2018-12-12'),
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(2, '1999-01-01', '1999-12-12');
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delete from t for portion of apptime from '1999-01-03' to '2018-12-10';
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select *, datediff(e, s) from t;
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id s e datediff(e, s)
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1 1999-01-01 1999-01-03 2
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1 2018-12-10 2018-12-12 2
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2 1999-01-01 1999-01-03 2
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drop table t,t2,t3,log_tbl;
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drop view v;
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drop procedure log;
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