[ http://issues.apache.org/jira/browse/DERBY-1262?page=all ]
     
A B reopened DERBY-1262:
------------------------


I think there's a *regression* after this patch was checked in.  The following 
query returns 2 rows before svn revision 411174 and NO rows after.  I admit I 
haven't looked closely enough to figure out which behavior is correct, but some 
more investigation is definitely required (at the very least, a release note is 
needed if the new behavior is correct).

This change went into the 10.1 codeline as well, and I have verified that it 
returned 2 rows with the snapshot  405564 but no rows with the latest 10.1 
codeline.

So I'm reopening this issue.  Note: it's currently marked as "Unassigned", so 
anyone who is inclined to pick it up should certainly feel free...

> Like-predicates: % does not match tab character
> -----------------------------------------------
>
>          Key: DERBY-1262
>          URL: http://issues.apache.org/jira/browse/DERBY-1262
>      Project: Derby
>         Type: Bug

>   Components: SQL
>     Versions: 10.0.2.0
>  Environment: Embedded, Solaris 10 x86
>     Reporter: Øystein Grøvlen
>      Fix For: 10.2.0.0, 10.1.3.0, 10.1.2.5
>  Attachments: 1262.diff, 1262_3.diff, 1262_4.diff, 1262_5.diff, 1262_6.diff
>
> % in like predicates does not seem to match tab character.  In the following 
> example all whitespace in character literals is the tab character:
> ij> create table t4(i integer primary key, j integer, c varchar(10));
> 0 rows inserted/updated/deleted
> ij> insert into t4 values (1, 1, 'abc def');
> 1 row inserted/updated/deleted
> ij> select * from t4 where c like 'abc%';
> I          |J          |C         
> ----------------------------------
> 0 rows selected
> ij> select * from t4 where c like 'abc        %';
> I          |J          |C         
> ----------------------------------
> 1          |1          |abc    def   
> 1 row selected

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