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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1262) Like-predicates: % does not match tab character
Date Thu, 01 Jun 2006 14:22:30 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1262?page=comments#action_12414239 ] 

Daniel John Debrunner commented on DERBY-1262:
----------------------------------------------

Couple of minor comments on the patch (1262_5.diff)

In padWithNulls() can StandardException ever be thrown? If not the method should not declare
that it throws it.

In padWithNulls()  can  the input ever be null? Seems all the callers have already checked
for null.

> 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
>  Attachments: 1262.diff, 1262_3.diff, 1262_4.diff, 1262_5.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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