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fixing wrong value for "examined rows" when UNION's are used.

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mysql-test/r/union.result:
  result for a test case for the wrong examined rows with UNION's
mysql-test/t/union.test:
  test case for the wrong examined rows with UNION's
sql/sql_union.cc:
  a patch for the wrong examined rows with UNION's
This commit is contained in:
unknown
2005-01-18 23:13:29 +02:00
parent e46d235a08
commit 59ef5bede9
3 changed files with 27 additions and 4 deletions
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16
mysql-test/r/union.result
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@ -872,6 +872,22 @@ count(*)
show status like 'Slow_queries';
Variable_name Value
Slow_queries 3
flush status;
select a from t1 where b not in (1,2,3) union select a from t1 where b not in (4,5,6);
a
4
5
3
6
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1
2
show status like 'Slow_queries';
Variable_name Value
Slow_queries 1
drop table t1;
create table t1 ( RID int(11) not null default '0', IID int(11) not null default '0', nada varchar(50) not null,NAME varchar(50) not null,PHONE varchar(50) not null) engine=MyISAM;
insert into t1 ( RID,IID,nada,NAME,PHONE) values (1, 1, 'main', 'a', '111'), (2, 1, 'main', 'b', '222'), (3, 1, 'main', 'c', '333'), (4, 1, 'main', 'd', '444'), (5, 1, 'main', 'e', '555'), (6, 2, 'main', 'c', '333'), (7, 2, 'main', 'd', '454'), (8, 2, 'main', 'e', '555'), (9, 2, 'main', 'f', '666'), (10, 2, 'main', 'g', '777');