Wrong Plan Used
----------------
Key: CORE-5070
URL: http://tracker.firebirdsql.org/browse/CORE-5070
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 3.0 Beta 2
Environment: W10 x64 FB3 build 32268
Reporter: Ryszard Skotarski
create table test1 (ia integer not null,id integer not null, it integer not
null, dt date not null, primary key (ia,id));
create table test2 (ia integer not null, it integer not null, dt date not
null, primary key (ia,dt,it));
alter table test1 add CONSTRAINT fk_test2 FOREIGN key (ia,dt,it) REFERENCES
test2 (ia,dt,it)
select * from test1
where ia=1 and dt='01/01/2015' and it=1
order by id;
plan : PLAN (TEST1 ORDER RDB$PRIMARY249)
performance very poor
the same problem with :
select id from test1
where ia=1 and dt='01/01/2015' and it=1
group by id
where without order or group works fine
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://tracker.firebirdsql.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
------------------------------------------------------------------------------
Firebird-Devel mailing list, web interface at
https://lists.sourceforge.net/lists/listinfo/firebird-devel
