mariadb/mysql-test/main/function_defaults.test
Oleksandr Byelkin 62287320d4 MDEV-33790 Incorrect DEFAULT expression evaluated in UPDATE
The problem was that Item_default_value::associate_with_target_field
assigned passed as argument field as an argument which changed argument
in case of default() call with certain field (i.e. deault(field)).

There is no way to get wrong field in constructor so we will not reassign
parameter.
2024-04-25 14:11:28 +02:00

92 lines
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Text

--echo #
--echo # Test of function defaults for any server, including embedded.
--echo #
--echo #
--echo # Function defaults run 1. No microsecond precision.
--echo #
let $current_timestamp=CURRENT_TIMESTAMP;
let $now=NOW();
let $timestamp=TIMESTAMP;
let $datetime=DATETIME;
source 'include/function_defaults.inc';
--echo #
--echo # Function defaults run 2. Six digits scale on seconds precision.
--echo #
let $current_timestamp=CURRENT_TIMESTAMP(6);
let $now=NOW(6);
let $timestamp=TIMESTAMP(6);
let $datetime=DATETIME(6);
source 'include/function_defaults.inc';
#
# MDEV-20403 Assertion `0' or Assertion `btr_validate_index(index, 0)' failed in row_upd_sec_index_entry or error code 126: Index is corrupted upon UPDATE with TIMESTAMP..ON UPDATE
#
# ON UPDATE NOW and indexed virtual columns
create table t1 (t timestamp, i int, v timestamp as (t) virtual, key(v));
insert t1 (t,i) values ('2006-03-01 23:59:59',1);
update t1 set i = 2;
check table t1;
drop table t1;
# ON UPDATE NOW and triggers
create table t1 (t timestamp, i int);
create trigger tr1 before update on t1 for each row set @new:=new.t;
insert t1 (t,i) values ('2006-03-01 23:59:59', 1);
update t1 set i = 2;
select if(@new = t, 'correct', 'wrong') from t1;
drop table t1;
# triggers, virtual columns, multi-update
create table t1 (i int, j int as (i));
create trigger tr1 before update on t1 for each row set @new:=new.j;
insert t1 (i) values (1);
update t1, t1 as t2 set t1.i = 2;
select if(@new = j, 'correct', 'wrong') from t1;
drop table t1;
# SET xxx=DEFAULT
create table t1 (a int, b varchar(20) default 'foo');
insert t1 values (1,'bla'),(2, 'bar');
select * from t1;
update t1 set b=default where a=1;
select * from t1;
drop table t1;
# ON UPDATE NOW and SET xxx=DEFAULT
create table t1 (
a int,
b timestamp default '2010-10-10 10:10:10' on update now(),
c varchar(100) default 'x');
insert t1 (a) values (1),(2);
select * from t1;
set timestamp=unix_timestamp('2011-11-11 11-11-11');
update t1 set b=default, c=default(b) where a=1;
select * from t1;
drop table t1;
set timestamp=default;
--echo #
--echo # MDEV-33790: Incorrect DEFAULT expression evaluated in UPDATE
--echo #
create table t1 (
a int,
b timestamp default '2010-10-10 10:10:10' on update now(),
c varchar(100) default 'x');
create table t2 (a int primary key);
insert t1 (a) values (1),(2);
insert t2 (a) values (1),(2);
select * from t1;
set timestamp=unix_timestamp('2011-11-11 11-11-11');
update t1,t2 set b=default, c=default(b) where t1.a=1 and t1.a= t2.a;
select * from t1;
drop table t1, t2;
set timestamp=default;
--echo #
--echo # End of 10.4 tests
--echo #