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From Håvard Mork (JIRA) <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1262) Like-predicates: % does not match tab character
Date Tue, 30 May 2006 15:08:30 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1262?page=all ]

Håvard Mork updated DERBY-1262:
-------------------------------

    Attachment: 1262_3.diff

New patch:
Removed duplicate greaterThan/lessThan methods, and now relying on the upgrade mechanism to
upgrade the stored preparedstatements (SPS).

The patch addresses both greaterThan and lessThan, and adds null padding on the right side
so the comparisons will correctly respond to control characters. Changing lessThan was necessary
to make 'asdf%' not include 'asdg\t' (\t is tab char).

All derbylang still passes.

> 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
>
> % 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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