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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6025) Wrong results with IN lists and indexes in territory based collation
Date Tue, 25 Feb 2014 08:03:21 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13911366#comment-13911366
] 

Mamta A. Satoor commented on DERBY-6025:
----------------------------------------

This execution time sorting is happening if an index is getting used and hence the query will
have a start and stop keys associated with it.

> Wrong results with IN lists and indexes in territory based collation
> --------------------------------------------------------------------
>
>                 Key: DERBY-6025
>                 URL: https://issues.apache.org/jira/browse/DERBY-6025
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.1.1, 10.5.2.0, 10.5.3.0, 10.6.1.0, 10.6.2.1, 10.7.1.1, 10.8.1.2,
10.8.2.2, 10.8.3.0, 10.9.1.0, 10.10.1.1
>            Reporter: Knut Anders Hatlen
>            Assignee: Mamta A. Satoor
>              Labels: derby_triage10_11
>
> The sequence below shows that a query returns 1 row when there is no index on the table,
and it returns 0 rows when an index is created. It should return 1 row regardless of the index's
presence.
> ij version 10.9
> ij> connect 'jdbc:derby:memory:colldb;create=true;territory=no;collation=TERRITORY_BASED';
> ij> create table t(x varchar(40));
> 0 rows inserted/updated/deleted
> ij> insert into t values 'Stranda Idrottslag', 'Aalesunds Fotballklubb';
> 2 rows inserted/updated/deleted
> ij> select * from t where x in ('Aalesunds Fotballklubb', cast('xyz' as char(3)));
> X                                       
> ----------------------------------------
> Aalesunds Fotballklubb                  
> 1 row selected
> ij> create index i on t(x);
> 0 rows inserted/updated/deleted
> ij> select * from t where x in ('Aalesunds Fotballklubb', cast('xyz' as char(3)));
> X                                       
> ----------------------------------------
> 0 rows selected



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