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

Wrong results (internal wrapping occured) for the multi-byte blob SUBSTRING function and its boundary arguments [CORE3335] #3701

Closed
firebird-issue-importer opened this issue Feb 4, 2011 · 5 comments

Comments

@firebird-issue-importer
Copy link

@firebird-issue-importer firebird-issue-importer commented Feb 4, 2011

Submitted by: @dyemanov

Is related to QA287

select substring(cast('abcdef' as blob sub_type text character set utf8)
from 1 for 2147483647) from rdb$database;
-- 'abcdef'

select substring(cast('abcdef' as blob sub_type text character set utf8)
from 2 for 2147483647) from rdb$database;
-- ''

select substring(cast('abcdef' as blob sub_type text character set utf8)
from 3 for 2147483647) from rdb$database;
-- 'cd'

select substring(cast('abcdef' as blob sub_type text character set utf8)
from 3 for 2147483646) from rdb$database;
-- ''

i.e. the problem occurs when (offset + length) overflows the 32-bit signed value.

Commits: 4a1dc69 8f538f4 3652f11

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Feb 4, 2011

Modified by: @dyemanov

assignee: Dmitry Yemanov [ dimitr ]

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Feb 4, 2011

Modified by: @dyemanov

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

resolution: Fixed [ 1 ]

Fix Version: 2.5.1 [ 10333 ]

Fix Version: 3.0 Alpha 1 [ 10331 ]

Fix Version: 2.1.5 [ 10420 ]

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Feb 23, 2011

Modified by: @pcisar

Link: This issue is related to QA287 [ QA287 ]

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented May 16, 2012

Modified by: @pmakowski

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

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Jul 15, 2015

Modified by: @pavel-zotov

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

QA Status: Done successfully

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