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BUG#19021, Crash in ROR-index_merge optimizer:

Browse Source 
get_best_covering_ror_intersect() was copying ror_scans starting from the 
end of the array and not from its beginning.


mysql-test/r/index_merge_innodb.result:
  Testcase for BUG#19021
mysql-test/t/index_merge_innodb.test:
  Testcase for BUG#19021
sql/opt_range.cc:
  BUG#19021: In get_best_covering_ror_intersect(), the array of pointers to
  scans to be used is [tree->ror_scans, ror_scan_mark), and not
  [ror_scan_mark, ...)
This commit is contained in:
unknown
2006-04-13 16:05:32 +04:00
parent 10633fd839
commit c89555edcc
3 changed files with 75 additions and 1 deletions
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22
mysql-test/r/index_merge_innodb.result
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@ -260,3 +260,25 @@ t_vers t_rele t_cust filler1
7.6 a
7.6 a
drop table t1;
create table t1 (
pk int(11) not null auto_increment,
a int(11) not null default '0',
b int(11) not null default '0',
c int(11) not null default '0',
filler1 datetime, filler2 varchar(15),
filler3 longtext,
kp1 varchar(4), kp2 varchar(7),
kp3 varchar(2), kp4 varchar(4),
kp5 varchar(7),
filler4 char(1),
primary key (pk),
key idx1(a,b,c),
key idx2(c),
key idx3(kp1,kp2,kp3,kp4,kp5)
) engine=innodb default charset=latin1;
set @fill=NULL;
SELECT COUNT(*) FROM t1 WHERE b = 0 AND a = 0 AND c = 13286427 AND
kp1='279' AND kp2='ELM0678' AND kp3='6' AND kp4='10' AND kp5 = 'R ';
COUNT(*)
1
drop table t1;