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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4490) SYSCS_UTIL.SYSCS_GET_DATABASE_PROPERTY unexpectedly returns NULL when used in SELECT
Date Fri, 15 Jan 2010 16:22:54 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800743#action_12800743
] 

Bryan Pendleton commented on DERBY-4490:
----------------------------------------

+1 to the idea that VALUES should return the literal strings as VARCHAR in preference to CHAR.


> SYSCS_UTIL.SYSCS_GET_DATABASE_PROPERTY unexpectedly returns NULL when used in SELECT
> ------------------------------------------------------------------------------------
>
>                 Key: DERBY-4490
>                 URL: https://issues.apache.org/jira/browse/DERBY-4490
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.3.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Mamta A. Satoor
>         Attachments: DERBY4490_null_database_property_diff_patch1.txt, DERBY4490_null_database_property_stat_patch1.txt
>
>
> I see the following values returned when invoking SYSCS_UTIL.SYSCS_GET_DATABASE_PROPERTY
on its own:
> ij> values syscs_util.syscs_get_database_property('derby.database.collation');
> 1
> --------------------
> UCS_BASIC
> 1 row selected
> ij> values syscs_util.syscs_get_database_property('DataDictionaryVersion');
> 1
> ---------------------
> 10.6
> 1 row selected
> But when I query both properties at the same time, DataDictionaryVersion comes out as
NULL:
> ij> select p, syscs_util.syscs_get_database_property(p) from (values 'derby.database.collation',
'DataDictionaryVersion') props(p);
> P                       |2
> ------------------------------------------------------------
> derby.database.collation|UCS_BASIC
> DataDictionaryVersion   |NULL
> 2 rows selected

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