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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2549) ArrayIndexOutOfBoundsException in SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE
Date Fri, 27 Apr 2007 22:01:15 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Matrigali updated DERBY-2549:
----------------------------------

    Attachment: derby2549_mikem.diff

I think there is yet a third option.  The intent of this loop is to operate like the standard
group fetch for normal scans.  So  it should just work to fetch N rows and have the loop check
for N, and just return from the middle of the loop and leave the scan to get the rest of the
rows on the next scan.  It shouldn't be necessary to size the group exactly and should not
be necessary to just give up on a page if it has more rows.

I have attached a quick patch i did, but have not run full tests.  It did seem to pass the
attached bug case and passed the existing online compress test.  Would appreciate if you could
run this patch with your debugging to verify that we get all 111 rows rather than skipping
the remaining 11.

A real checkin should include a new test case, probably based on the recent case that  reproduces
the problem.  Though I noted that license has not been granted on that attachment.  

> ArrayIndexOutOfBoundsException in SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE
> -------------------------------------------------------------------------
>
>                 Key: DERBY-2549
>                 URL: https://issues.apache.org/jira/browse/DERBY-2549
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.2.2.0
>         Environment: Linux 2.6.x, JRE 1.5.0_b7
>            Reporter: Kurt Huwig
>         Assigned To: Mayuresh Nirhali
>         Attachments: 2549-histogram.png, A2549Test.java, derby-2549-v1.diff, derby2549_mikem.diff,
DerbyDiskSpaceDiag.java
>
>
> I am doing this in my code:
> CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('SPONTS','" + "journal".toUpperCase(Locale.US)
+ "',1,1,1)")
> ("journal" is actually a String-variable, but I replaced it here for easier understanding)
> Sometime - not always - I am getting this exception:
> java.sql.SQLException: The exception 'java.lang.ArrayIndexOutOfBoundsException: 100'
was thrown while evaluating an expression. SQLSTATE: XJ001:
> Java exception: '100: java.lang.ArrayIndexOutOfBoundsException'.
>         at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
>         at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
>         at org.apache.derby.client.am.Statement.execute(Unknown Source)
> [...]
> Caused by: org.apache.derby.client.am.SqlException: The exception 'java.lang.ArrayIndexOutOfBoundsException:
100' was thrown while evaluating an expression.
>  SQLSTATE: XJ001: Java exception: '100: java.lang.ArrayIndexOutOfBoundsException'.
>         at org.apache.derby.client.am.Statement.completeExecute(Unknown Source)
>         at org.apache.derby.client.net.NetStatementReply.parseEXCSQLSTTreply(Unknown
Source)
>         at org.apache.derby.client.net.NetStatementReply.readExecuteCall(Unknown Source)
>         at org.apache.derby.client.net.StatementReply.readExecuteCall(Unknown Source)
>         at org.apache.derby.client.net.NetStatement.readExecuteCall_(Unknown Source)
>         at org.apache.derby.client.am.Statement.readExecuteCall(Unknown Source)
>         at org.apache.derby.client.am.Statement.flowExecute(Unknown Source)
>         at org.apache.derby.client.am.Statement.executeX(Unknown Source)
>         ... 12 more

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