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Backport of

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- revid:sp1r-svoj@mysql.com/june.mysql.com-20080324111246-00461
  - revid:sp1r-svoj@mysql.com/june.mysql.com-20080414125521-40866

  BUG#35274 - merge table doesn't need any base tables, gives
              error 124 when key accessed

  SELECT queries that use index against a merge table with empty
  underlying tables list may return with error "Got error 124 from
  storage engine".

  The problem was that wrong error being returned.
This commit is contained in:
Alexander Nozdrin
2010-05-31 17:38:02 +04:00
parent 3ca98f7669
commit 893dced429
3 changed files with 25 additions and 3 deletions
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7
mysql-test/r/merge.result
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@@ -277,7 +277,7 @@ t3 CREATE TABLE `t3` (
drop table t3,t2,t1;
create table t1 (a int not null, key(a)) engine=merge;
select * from t1;
ERROR HY000: Got error 124 from storage engine
a
drop table t1;
create table t1 (a int not null, b int not null, key(a,b));
create table t2 (a int not null, b int not null, key(a,b));
@@ -988,6 +988,11 @@ m1 CREATE TABLE `m1` (
`a` int(11) DEFAULT NULL
) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1, m1;
CREATE TABLE t1(a INT, KEY(a)) ENGINE=merge;
SELECT MAX(a) FROM t1;
MAX(a)
NULL
DROP TABLE t1;
CREATE TABLE t1(a INT);
CREATE TABLE t2(a VARCHAR(10));
CREATE TABLE m1(a INT) ENGINE=MERGE UNION=(t1, t2);