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From "Shawn Aucoin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3664) Trailing white space in varchar field is trimmed off.
Date Tue, 06 May 2008 04:01:55 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594458#action_12594458

Shawn Aucoin commented on DERBY-3664:

Hmm...interesting.  I have a deep oracle development back ground and I know that Oracle doesn't
treat it this way.  It is interesting and to me would seem to be a bug, because 'first_test
' and first_test' are not equal.

However, i am not going to moan about it as I think i can get the data changed, but i would
suggest that maybe this could become a future enhancement as a space is really a valid character
(even trailing ones) and should be included in comparisons, although I fully acknowledge that
the data should not have trailing spaces, and I am hard pressed to think of a valid scenario
where it would be appropriate to have trailing spaces in a field.

Being a developer, I don't particularly like it when something does something that i didn't
ask it too...;)

Again, thanks for the great product!

> Trailing white space in varchar field is trimmed off.
> -----------------------------------------------------
>                 Key: DERBY-3664
>                 URL: https://issues.apache.org/jira/browse/DERBY-3664
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions:,,
>         Environment: Win XP, Derby
>            Reporter: Shawn Aucoin
> When executing an insert statement with a varchar field containing trailing whitespace,
the trailing whitespace is removed.  This results in unique constraint issues.  If  index
is not unique, select * from login where login = 'first_test'  will return both records. 
Preceeding whitespace doesn't appear to be affected.  I tested this from IJ and from java
api.  I included an example below
> (
> );
> insert into login (LOGIN_ID, LOGIN) values (1, 'first_test');
> insert into login (LOGIN_ID, LOGIN) values (2, 'first_test ');
> Now, i fully admit that there is no logical reason for trailing whitespace, but it is
client data that i am dealing with and I may not be able to get it changed.  Thanks, derby
is a sweet product!

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