Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Computed expressions may be optimized badly if used inside the RETURNING clause of the INSERT statement [CORE2053] #2489

Closed
firebird-automations opened this issue Aug 25, 2008 · 9 comments

Comments

@firebird-automations
Copy link
Collaborator

Submitted by: @dyemanov

Is related to QA222

Test case:

create table t1 (col1 int);
create index i1 on t1 (col1);
commit;
insert into t1 (col1) values (1);
commit;
create table t2 (col2 int);
commit;

select case when exists (select 1 from t1 where col1 = col2) then 1 else 0 end from t2;
-- PLAN (T1 INDEX (I1))
-- PLAN (T2 NATURAL)
-- Everything is okay, T1 is accessed via an index

insert into t2 (col2) values (1) returning case when exists (select 1 from t1 where col1 = col2) then 1 else 0 end;
-- PLAN (T1 NATURAL)
-- Full scan is chosen, this is a bug

Commits: 6708d63 2bbcb54

@firebird-automations
Copy link
Collaborator Author

Modified by: @dyemanov

assignee: Dmitry Yemanov [ dimitr ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @dyemanov

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.5 Beta 1 [ 10251 ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @dyemanov

Fix Version: 2.1.2 [ 10270 ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @pmakowski

Link: This issue block progress on QA222 [ QA222 ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @pmakowski

status: Resolved [ 5 ] => Closed [ 6 ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @pcisar

Link: This issue is related to QA222 [ QA222 ]

@firebird-automations
Copy link
Collaborator Author

Modified by: @pcisar

Link: This issue block progress on QA222 [ QA222 ] =>

@firebird-automations
Copy link
Collaborator Author

Modified by: @pavel-zotov

QA Status: No test

@firebird-automations
Copy link
Collaborator Author

Modified by: @pavel-zotov

QA Status: No test => Done successfully

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment