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row_search_for_mysql(): Never try semi-consistent read in unique searches.

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They are only useful in table scans. (Bug #52663)
This commit is contained in:
Marko Mäkelä
2010-04-26 13:27:25 +03:00
parent 410afeaa0b
commit 063928ba05
8 changed files with 129 additions and 0 deletions
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34
mysql-test/suite/innodb_plugin/t/innodb_bug52663.test Normal file
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--source include/have_innodb_plugin.inc
set session transaction isolation level read committed;
create table innodb_bug52663 (what varchar(5), id integer, count integer, primary key
(what, id)) engine=innodb;
insert into innodb_bug52663 values ('total', 0, 0);
begin;
connect (addconroot, localhost, root,,);
connection addconroot;
set session transaction isolation level read committed;
begin;
connection default;
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
select * from innodb_bug52663;
connection addconroot;
--error ER_LOCK_WAIT_TIMEOUT
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
select * from innodb_bug52663;
connection default;
commit;
connection addconroot;
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
commit;
select * from innodb_bug52663;
connection default;
select * from innodb_bug52663;
drop table innodb_bug52663;