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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

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remove a special treatment of a bare DEFAULT keyword that made it
behave inconsistently and differently from DEFAULT(column).
Now all forms of the explicit assignment of a default column value
behave identically, and all count as an explicitly assigned value
(for the purpose of ON UPDATE NOW).

followup for c7c481f4d9
This commit is contained in:
Sergei Golubchik
2019-09-04 14:02:01 +02:00
parent 53ec9047c9
commit 8dca4cf53f
7 changed files with 56 additions and 40 deletions
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29
mysql-test/r/function_defaults.result
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@ -3116,3 +3116,32 @@ select if(@new = j, 'correct', 'wrong') from t1;
if(@new = j, 'correct', 'wrong')
correct
drop table t1;
create table t1 (a int, b varchar(20) default 'foo');
insert t1 values (1,'bla'),(2, 'bar');
select * from t1;
a b
1 bla
2 bar
update t1 set b=default where a=1;
select * from t1;
a b
1 foo
2 bar
drop table t1;
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;
a b c
1 2010-10-10 10:10:10 x
2 2010-10-10 10:10:10 x
set timestamp=unix_timestamp('2011-11-11 11-11-11');
update t1 set b=default, c=default(b) where a=1;
select * from t1;
a b c
1 2010-10-10 10:10:10 2010-10-10 10:10:10
2 2010-10-10 10:10:10 x
drop table t1;
set timestamp=default;