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094f4cf778
If triggers are used for an insert/update/delete statement than the values of all virtual columns must be computed as any of them may be used by the triggers.
127 lines
2.1 KiB
Text
127 lines
2.1 KiB
Text
SET @@session.storage_engine = 'InnoDB';
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create table t1 (a int,
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b int as (a/10),
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c int as (a/10) persistent);
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create table t2 (a timestamp);
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create trigger trg1 before insert on t1 for each row
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begin
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if (new.b < 10) then
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set new.a:= 100;
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set new.b:= 9;
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set new.c:= 9;
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end if;
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if (new.c > 50) then
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set new.a:= 500;
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end if;
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end|
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create trigger trg2 after insert on t1 for each row
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begin
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if (new.b >= 60) then
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insert into t2 values (now());
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end if;
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end|
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create function f1()
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returns int
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begin
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declare sum1 int default '0';
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declare cur1 cursor for select sum(b) from t1;
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open cur1;
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fetch cur1 into sum1;
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close cur1;
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return sum1;
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end|
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set sql_warnings = 1;
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insert into t1 (a) values (200);
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select * from t1;
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a b c
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200 20 20
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select * from t2;
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a
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insert into t1 (a) values (10);
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select * from t1;
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a b c
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200 20 20
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100 10 10
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select * from t2;
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a
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insert into t1 (a) values (600);
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select * from t1;
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a b c
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200 20 20
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100 10 10
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500 50 50
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select * from t2;
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a
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select f1();
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f1()
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80
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set sql_warnings = 0;
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drop trigger trg1;
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drop trigger trg2;
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drop table t2;
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create procedure p1()
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begin
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declare i int default '0';
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create table t2 like t1;
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insert into t2 (a) values (100), (200);
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begin
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declare cur1 cursor for select sum(c) from t2;
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open cur1;
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fetch cur1 into i;
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close cur1;
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if (i=30) then
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insert into t1 values (300,default,default);
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end if;
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end;
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end|
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delete from t1;
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call p1();
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select * from t2;
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a b c
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100 10 10
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200 20 20
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select * from t1;
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a b c
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300 30 30
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drop table t1,t2;
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drop procedure p1;
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#
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# Bug mdev-3845: values of virtual columns are not computed for triggers
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#
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CREATE TABLE t1 (
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a INTEGER UNSIGNED NULL DEFAULT NULL,
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b INTEGER UNSIGNED GENERATED ALWAYS AS (a) VIRTUAL
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);
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CREATE TABLE t2 (c INTEGER UNSIGNED NOT NULL);
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CREATE TRIGGER t1_ins_aft
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AFTER INSERT
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ON t1
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FOR EACH ROW
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BEGIN
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INSERT INTO t2 (c) VALUES (NEW.b);
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END |
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CREATE TRIGGER t1_del_bef
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BEFORE DELETE
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ON t1
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FOR EACH ROW
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BEGIN
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INSERT INTO t2 (c) VALUES (OLD.b);
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END |
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INSERT INTO t1 (a) VALUES (1), (2), (3);
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SELECT * FROM t2;
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c
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1
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2
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3
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DELETE FROM t1;
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SELECT * FROM t2;
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c
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1
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2
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3
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1
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2
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3
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DROP TRIGGER t1_ins_aft;
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DROP TRIGGER t1_del_bef;
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DROP TABLE t1,t2;
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