Join using RDB$DB_KEY produce NATURAL plan
------------------------------------------
Key: CORE-3997
URL: http://tracker.firebirdsql.org/browse/CORE-3997
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 2.5.1
Reporter: Dimitry Sibiryakov
Priority: Minor
Following script shows plan JOIN (T_KEY NATURAL, T NATURAL) instead of JOIN
(T_KEY NATURAL, T INDEX())
create table t (f integer);
create table t_key (k char(8) character set octets);
commit;
set term ^;
execute block as
declare variable i integer=100000;
begin
While (i>0) do
begin
insert into t values (:i);
i = i-1;
end
end^
set term ;^
commit;
insert into t_key select rdb$db_key from t where f=1;
commit;
set plan on;
select f from t join t_key on t.rdb$db_key=t_key.k;
--
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
------------------------------------------------------------------------------
Monitor your physical, virtual and cloud infrastructure from a single
web console. Get in-depth insight into apps, servers, databases, vmware,
SAP, cloud infrastructure, etc. Download 30-day Free Trial.
Pricing starts from $795 for 25 servers or applications!
http://p.sf.net/sfu/zoho_dev2dev_nov
Firebird-Devel mailing list, web interface at
https://lists.sourceforge.net/lists/listinfo/firebird-devel
