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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-887) Select statement returns wrong number of rows if you compare an integer column with a boolean expression in the where clause
Date Mon, 12 Oct 2009 20:02:31 GMT

     [ https://issues.apache.org/jira/browse/DERBY-887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Hillegas updated DERBY-887:
--------------------------------

    Attachment: releaseNote.html

Attaching first rev of a release note for this bug-fix.

> Select statement returns wrong number of rows if you compare an integer column with a
boolean expression in the where clause
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-887
>                 URL: https://issues.apache.org/jira/browse/DERBY-887
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.2.1.6
>         Environment: Java : java version "1.5.0_02"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_02-b09)
> Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed mode)
> Classpath : c:/pantry/derby.jar;c:/pantry/derbytools.jar;
> OS: Windows XP Professional
>            Reporter: Manjula Kutty
>            Assignee: Rick Hillegas
>         Attachments: bug887_interim.diff, bug887_interim.diff, derby-887-01-ag-noImplicitCasts.diff,
DERBY-887.sql, releaseNote.html
>
>
> I have a table with 2 columns one is BIGINT which is Generated always starting with 1
and increment by1 and the other one is timestamp
>  ij> select id,date from inbox where id = 0<3;
> ID                  |DATE
> -----------------------------------------------
> 25                  |2006-01-26 14:35:46.584
> 34                  |2006-01-26 14:36:16.588
> 21                  |2006-01-26 14:34:46.455
> 22                  |2006-01-26 14:34:47.176
> 27                  |2006-01-26 14:35:47.054
> 24                  |2006-01-26 14:35:16.58
> 28                  |2006-01-26 14:35:47.305
> 35                  |2006-01-26 14:36:18.771
> 31                  |2006-01-26 14:35:48.496
> 32                  |2006-01-26 14:35:48.887
> 33                  |2006-01-26 14:35:49.308
> 11 rows selected
> ij> select id,date from inbox where id = true;
> ID                  |DATE
> -----------------------------------------------
> 21                  |2006-01-26 14:34:46.455
> 1 row selected
> Both queries should return same number of rows
> Also If I delete the first row from the table then select id,date from inbox where id
= true; returns the second row
> ij> delete from inbox where id=21;
> 1 row inserted/updated/deleted
> Then again run
> ij> select id ,date from inbox where id=true;
> ID                  |DATE
> -----------------------------------------------
> 22                 |2006-01-26 14:35:16.58
> Which indicates that the select returns only the first row and then is getting closed

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